/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/list-simple/sll2c_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:22:14,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:22:14,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:22:14,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:22:14,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:22:14,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:22:14,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:22:14,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:22:14,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:22:14,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:22:14,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:22:14,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:22:14,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:22:14,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:22:14,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:22:14,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:22:14,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:22:14,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:22:14,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:22:14,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:22:14,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:22:14,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:22:14,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:22:14,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:22:14,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:22:14,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:22:14,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:22:14,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:22:14,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:22:14,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:22:14,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:22:14,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:22:14,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:22:14,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:22:14,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:22:14,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:22:14,994 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 14:22:15,050 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:22:15,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:22:15,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:22:15,052 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:22:15,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:22:15,054 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:22:15,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:22:15,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:22:15,058 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:22:15,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:22:15,060 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:22:15,060 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:22:15,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:22:15,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:22:15,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:22:15,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:22:15,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:22:15,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:22:15,062 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:22:15,062 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:22:15,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:22:15,063 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:22:15,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:22:15,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:22:15,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:22:15,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:22:15,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:22:15,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:22:15,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:22:15,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:22:15,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:22:15,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:22:15,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:22:15,067 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:22:15,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:22:15,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:22:15,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:22:15,549 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:22:15,550 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:22:15,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2022-10-16 14:22:15,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e7a7fa4/de695aaf067640ffa99b7a530ba8fd70/FLAG14a7c61b0 [2022-10-16 14:22:16,349 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:22:16,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2022-10-16 14:22:16,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e7a7fa4/de695aaf067640ffa99b7a530ba8fd70/FLAG14a7c61b0 [2022-10-16 14:22:16,599 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e7a7fa4/de695aaf067640ffa99b7a530ba8fd70 [2022-10-16 14:22:16,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:22:16,614 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:22:16,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:22:16,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:22:16,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:22:16,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:22:16" (1/1) ... [2022-10-16 14:22:16,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58628588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:16, skipping insertion in model container [2022-10-16 14:22:16,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:22:16" (1/1) ... [2022-10-16 14:22:16,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:22:16,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:22:17,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i[24436,24449] [2022-10-16 14:22:17,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:22:17,084 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:22:17,129 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i[24436,24449] [2022-10-16 14:22:17,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:22:17,167 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:22:17,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:17 WrapperNode [2022-10-16 14:22:17,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:22:17,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:22:17,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:22:17,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:22:17,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:17" (1/1) ... [2022-10-16 14:22:17,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:17" (1/1) ... [2022-10-16 14:22:17,227 INFO L138 Inliner]: procedures = 126, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 145 [2022-10-16 14:22:17,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:22:17,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:22:17,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:22:17,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:22:17,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:17" (1/1) ... [2022-10-16 14:22:17,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:17" (1/1) ... [2022-10-16 14:22:17,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:17" (1/1) ... [2022-10-16 14:22:17,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:17" (1/1) ... [2022-10-16 14:22:17,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:17" (1/1) ... [2022-10-16 14:22:17,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:17" (1/1) ... [2022-10-16 14:22:17,266 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:17" (1/1) ... [2022-10-16 14:22:17,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:17" (1/1) ... [2022-10-16 14:22:17,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:22:17,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:22:17,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:22:17,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:22:17,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:17" (1/1) ... [2022-10-16 14:22:17,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:22:17,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:17,321 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 14:22:17,343 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 14:22:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:22:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:22:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-10-16 14:22:17,410 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-10-16 14:22:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 14:22:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:22:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 14:22:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 14:22:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:22:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:22:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:22:17,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:22:17,639 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:22:17,644 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:22:17,909 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:22:17,917 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:22:17,917 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-16 14:22:17,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:22:17 BoogieIcfgContainer [2022-10-16 14:22:17,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:22:17,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:22:17,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:22:17,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:22:17,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:22:16" (1/3) ... [2022-10-16 14:22:17,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a004301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:22:17, skipping insertion in model container [2022-10-16 14:22:17,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:17" (2/3) ... [2022-10-16 14:22:17,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a004301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:22:17, skipping insertion in model container [2022-10-16 14:22:17,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:22:17" (3/3) ... [2022-10-16 14:22:17,930 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2c_update_all_reverse.i [2022-10-16 14:22:17,951 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:22:17,952 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-10-16 14:22:18,017 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:22:18,026 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;@cb93ca4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:22:18,026 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-10-16 14:22:18,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 67 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:18,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 14:22:18,058 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:18,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:18,061 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:18,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:18,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1926439242, now seen corresponding path program 1 times [2022-10-16 14:22:18,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:18,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607145405] [2022-10-16 14:22:18,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:18,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:18,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:18,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:22:18,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:18,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607145405] [2022-10-16 14:22:18,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607145405] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:18,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:22:18,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:22:18,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613262774] [2022-10-16 14:22:18,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:18,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:22:18,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:18,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:22:18,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:22:18,557 INFO L87 Difference]: Start difference. First operand has 71 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 67 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 14:22:18,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:18,654 INFO L93 Difference]: Finished difference Result 125 states and 151 transitions. [2022-10-16 14:22:18,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:22:18,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-10-16 14:22:18,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:18,668 INFO L225 Difference]: With dead ends: 125 [2022-10-16 14:22:18,669 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:22:18,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 14:22:18,685 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:18,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 143 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:18,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:22:18,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-16 14:22:18,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 40 states have (on average 1.55) internal successors, (62), 57 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:18,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2022-10-16 14:22:18,755 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 13 [2022-10-16 14:22:18,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:18,757 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2022-10-16 14:22:18,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 14:22:18,758 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2022-10-16 14:22:18,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 14:22:18,760 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:18,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:18,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:22:18,761 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:18,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:18,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1926141332, now seen corresponding path program 1 times [2022-10-16 14:22:18,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:18,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742383796] [2022-10-16 14:22:18,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:18,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:19,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:19,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:22:19,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:19,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742383796] [2022-10-16 14:22:19,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742383796] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:19,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:22:19,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:22:19,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655956088] [2022-10-16 14:22:19,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:19,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:22:19,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:19,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:22:19,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:22:19,050 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 14:22:19,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:19,096 INFO L93 Difference]: Finished difference Result 113 states and 123 transitions. [2022-10-16 14:22:19,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:22:19,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-10-16 14:22:19,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:19,099 INFO L225 Difference]: With dead ends: 113 [2022-10-16 14:22:19,099 INFO L226 Difference]: Without dead ends: 68 [2022-10-16 14:22:19,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:22:19,101 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 5 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:19,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 177 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:19,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-10-16 14:22:19,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2022-10-16 14:22:19,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 41 states have (on average 1.5365853658536586) internal successors, (63), 58 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:19,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2022-10-16 14:22:19,114 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 13 [2022-10-16 14:22:19,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:19,115 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2022-10-16 14:22:19,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 14:22:19,115 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2022-10-16 14:22:19,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:22:19,116 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:19,116 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:19,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:22:19,117 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:19,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:19,118 INFO L85 PathProgramCache]: Analyzing trace with hash -154583391, now seen corresponding path program 1 times [2022-10-16 14:22:19,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:19,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572396517] [2022-10-16 14:22:19,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:19,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:19,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:19,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:19,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:22:19,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:19,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572396517] [2022-10-16 14:22:19,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572396517] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:19,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:22:19,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:22:19,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898149117] [2022-10-16 14:22:19,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:19,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:22:19,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:19,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:22:19,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:22:19,425 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:19,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:19,487 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2022-10-16 14:22:19,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:22:19,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-10-16 14:22:19,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:19,489 INFO L225 Difference]: With dead ends: 68 [2022-10-16 14:22:19,489 INFO L226 Difference]: Without dead ends: 67 [2022-10-16 14:22:19,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:22:19,492 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 5 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:19,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 230 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:19,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-10-16 14:22:19,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2022-10-16 14:22:19,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.5116279069767442) internal successors, (65), 60 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:22:19,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2022-10-16 14:22:19,506 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 18 [2022-10-16 14:22:19,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:19,507 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2022-10-16 14:22:19,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:19,507 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2022-10-16 14:22:19,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:22:19,508 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:19,508 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:19,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:22:19,509 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:19,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:19,510 INFO L85 PathProgramCache]: Analyzing trace with hash -497117776, now seen corresponding path program 1 times [2022-10-16 14:22:19,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:19,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319197425] [2022-10-16 14:22:19,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:19,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:19,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:19,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:19,752 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:22:19,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:19,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319197425] [2022-10-16 14:22:19,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319197425] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:19,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:22:19,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:22:19,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797095894] [2022-10-16 14:22:19,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:19,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:22:19,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:19,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:22:19,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:22:19,755 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:19,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:19,810 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2022-10-16 14:22:19,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:22:19,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-10-16 14:22:19,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:19,816 INFO L225 Difference]: With dead ends: 67 [2022-10-16 14:22:19,816 INFO L226 Difference]: Without dead ends: 66 [2022-10-16 14:22:19,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:22:19,821 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 2 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:19,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 232 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:19,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-16 14:22:19,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-10-16 14:22:19,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.5) internal successors, (66), 61 states have internal predecessors, (66), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:22:19,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2022-10-16 14:22:19,844 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 19 [2022-10-16 14:22:19,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:19,845 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2022-10-16 14:22:19,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:19,845 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2022-10-16 14:22:19,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 14:22:19,846 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:19,846 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:19,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:22:19,848 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:19,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:19,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1060131138, now seen corresponding path program 1 times [2022-10-16 14:22:19,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:19,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830696619] [2022-10-16 14:22:19,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:19,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:20,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:20,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:20,067 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:22:20,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:20,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830696619] [2022-10-16 14:22:20,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830696619] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:20,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397057245] [2022-10-16 14:22:20,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:20,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:20,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:20,071 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 14:22:20,095 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 14:22:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:20,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:22:20,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:20,258 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:22:20,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:22:20,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397057245] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:20,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:22:20,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2022-10-16 14:22:20,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766045086] [2022-10-16 14:22:20,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:20,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:22:20,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:20,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:22:20,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:22:20,262 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:20,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:20,285 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2022-10-16 14:22:20,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:22:20,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-10-16 14:22:20,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:20,287 INFO L225 Difference]: With dead ends: 66 [2022-10-16 14:22:20,287 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 14:22:20,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:22:20,289 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 46 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:20,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 57 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:20,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 14:22:20,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-10-16 14:22:20,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 59 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:22:20,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2022-10-16 14:22:20,304 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 23 [2022-10-16 14:22:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:20,304 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2022-10-16 14:22:20,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:20,305 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2022-10-16 14:22:20,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 14:22:20,307 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:20,307 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:20,353 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 14:22:20,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:20,523 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:20,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:20,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1495673149, now seen corresponding path program 1 times [2022-10-16 14:22:20,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:20,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296930395] [2022-10-16 14:22:20,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:20,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:20,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:20,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:20,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:22:20,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:20,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296930395] [2022-10-16 14:22:20,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296930395] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:20,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536995155] [2022-10-16 14:22:20,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:20,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:20,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:20,756 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 14:22:20,782 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 14:22:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:20,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:22:20,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:20,915 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:22:20,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:22:20,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536995155] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:20,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:22:20,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2022-10-16 14:22:20,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377288992] [2022-10-16 14:22:20,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:20,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:22:20,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:20,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:22:20,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:22:20,919 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:20,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:20,940 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2022-10-16 14:22:20,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:22:20,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2022-10-16 14:22:20,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:20,942 INFO L225 Difference]: With dead ends: 64 [2022-10-16 14:22:20,942 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 14:22:20,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:22:20,944 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 43 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:20,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 57 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:20,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 14:22:20,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-10-16 14:22:20,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 57 states have internal predecessors, (62), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:22:20,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2022-10-16 14:22:20,953 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 24 [2022-10-16 14:22:20,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:20,954 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2022-10-16 14:22:20,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:20,954 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2022-10-16 14:22:20,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 14:22:20,955 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:20,955 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:20,992 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 14:22:21,169 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,SelfDestructingSolverStorable5 [2022-10-16 14:22:21,170 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:21,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:21,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1472145825, now seen corresponding path program 1 times [2022-10-16 14:22:21,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:21,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400018549] [2022-10-16 14:22:21,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:21,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:21,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:21,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:22:21,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:21,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400018549] [2022-10-16 14:22:21,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400018549] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:21,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912520088] [2022-10-16 14:22:21,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:21,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:21,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:21,357 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 14:22:21,376 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 14:22:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:21,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:22:21,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:21,519 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:22:21,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:22:21,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912520088] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:21,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:22:21,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 14:22:21,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355555438] [2022-10-16 14:22:21,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:21,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:22:21,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:21,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:22:21,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:22:21,528 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:21,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:21,600 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2022-10-16 14:22:21,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:22:21,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-10-16 14:22:21,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:21,602 INFO L225 Difference]: With dead ends: 99 [2022-10-16 14:22:21,602 INFO L226 Difference]: Without dead ends: 97 [2022-10-16 14:22:21,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:22:21,607 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 79 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:21,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 91 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:22:21,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-10-16 14:22:21,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 66. [2022-10-16 14:22:21,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 61 states have internal predecessors, (67), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:22:21,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2022-10-16 14:22:21,622 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 26 [2022-10-16 14:22:21,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:21,623 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2022-10-16 14:22:21,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:21,623 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2022-10-16 14:22:21,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 14:22:21,624 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:21,624 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:21,666 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 14:22:21,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:21,838 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:21,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:21,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1608119752, now seen corresponding path program 1 times [2022-10-16 14:22:21,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:21,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807774419] [2022-10-16 14:22:21,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:21,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:21,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:21,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:21,934 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:22:21,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:21,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807774419] [2022-10-16 14:22:21,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807774419] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:21,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:22:21,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:22:21,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581166940] [2022-10-16 14:22:21,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:21,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:22:21,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:21,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:22:21,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:22:21,937 INFO L87 Difference]: Start difference. First operand 66 states and 73 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:22,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:22,013 INFO L93 Difference]: Finished difference Result 66 states and 73 transitions. [2022-10-16 14:22:22,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:22:22,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-10-16 14:22:22,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:22,014 INFO L225 Difference]: With dead ends: 66 [2022-10-16 14:22:22,014 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 14:22:22,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:22:22,016 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 80 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:22,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 105 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:22:22,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 14:22:22,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-10-16 14:22:22,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 59 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:22:22,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2022-10-16 14:22:22,025 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 27 [2022-10-16 14:22:22,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:22,026 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2022-10-16 14:22:22,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:22,026 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2022-10-16 14:22:22,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 14:22:22,027 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:22,027 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:22,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:22:22,028 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:22,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:22,028 INFO L85 PathProgramCache]: Analyzing trace with hash 842747831, now seen corresponding path program 1 times [2022-10-16 14:22:22,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:22,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061894021] [2022-10-16 14:22:22,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:22,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:22,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:22,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:22,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:22:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:22,258 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:22:22,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:22,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061894021] [2022-10-16 14:22:22,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061894021] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:22,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604753662] [2022-10-16 14:22:22,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:22,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:22,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:22,262 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 14:22:22,280 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 14:22:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:22,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:22:22,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:22,436 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:22:22,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:22:22,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604753662] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:22,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:22:22,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2022-10-16 14:22:22,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20411768] [2022-10-16 14:22:22,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:22,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:22:22,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:22,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:22:22,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:22:22,439 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 14:22:22,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:22,470 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2022-10-16 14:22:22,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:22:22,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2022-10-16 14:22:22,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:22,472 INFO L225 Difference]: With dead ends: 113 [2022-10-16 14:22:22,472 INFO L226 Difference]: Without dead ends: 58 [2022-10-16 14:22:22,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:22:22,474 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 88 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:22,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 113 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:22,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-16 14:22:22,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-10-16 14:22:22,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 54 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:22,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2022-10-16 14:22:22,482 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 28 [2022-10-16 14:22:22,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:22,483 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2022-10-16 14:22:22,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 14:22:22,483 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2022-10-16 14:22:22,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 14:22:22,485 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:22,485 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:22,524 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 14:22:22,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:22,699 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:22,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:22,701 INFO L85 PathProgramCache]: Analyzing trace with hash -785142326, now seen corresponding path program 1 times [2022-10-16 14:22:22,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:22,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5858814] [2022-10-16 14:22:22,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:22,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:22,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:22,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:22,985 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:22:22,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:22,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5858814] [2022-10-16 14:22:22,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5858814] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:22,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769941149] [2022-10-16 14:22:22,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:22,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:22,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:22,988 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 14:22:23,006 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 14:22:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:23,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:22:23,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:22:23,164 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:22:23,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769941149] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:23,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:22:23,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2022-10-16 14:22:23,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853318941] [2022-10-16 14:22:23,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:23,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:22:23,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:23,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:22:23,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:22:23,167 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:23,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:23,304 INFO L93 Difference]: Finished difference Result 120 states and 129 transitions. [2022-10-16 14:22:23,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:22:23,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2022-10-16 14:22:23,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:23,308 INFO L225 Difference]: With dead ends: 120 [2022-10-16 14:22:23,308 INFO L226 Difference]: Without dead ends: 119 [2022-10-16 14:22:23,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:22:23,310 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 158 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:23,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 197 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:22:23,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-10-16 14:22:23,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 62. [2022-10-16 14:22:23,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 58 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:23,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2022-10-16 14:22:23,335 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 29 [2022-10-16 14:22:23,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:23,335 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2022-10-16 14:22:23,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:23,336 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2022-10-16 14:22:23,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 14:22:23,337 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:23,338 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:23,373 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 14:22:23,552 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,SelfDestructingSolverStorable9 [2022-10-16 14:22:23,553 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:23,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:23,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1430391754, now seen corresponding path program 1 times [2022-10-16 14:22:23,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:23,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538734057] [2022-10-16 14:22:23,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:23,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:23,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:23,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:23,675 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:22:23,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:23,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538734057] [2022-10-16 14:22:23,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538734057] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:23,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:22:23,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:22:23,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844724377] [2022-10-16 14:22:23,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:23,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:22:23,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:23,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:22:23,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:22:23,680 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:23,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:23,716 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2022-10-16 14:22:23,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:22:23,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2022-10-16 14:22:23,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:23,717 INFO L225 Difference]: With dead ends: 62 [2022-10-16 14:22:23,717 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:22:23,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:22:23,718 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 1 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:23,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 147 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:23,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:22:23,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-16 14:22:23,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 57 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:23,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2022-10-16 14:22:23,729 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 30 [2022-10-16 14:22:23,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:23,729 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2022-10-16 14:22:23,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:23,730 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2022-10-16 14:22:23,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 14:22:23,734 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:23,734 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:23,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 14:22:23,734 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:23,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:23,735 INFO L85 PathProgramCache]: Analyzing trace with hash 307353485, now seen corresponding path program 1 times [2022-10-16 14:22:23,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:23,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716958095] [2022-10-16 14:22:23,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:23,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:23,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:23,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:23,924 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:22:23,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:23,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716958095] [2022-10-16 14:22:23,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716958095] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:23,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752099728] [2022-10-16 14:22:23,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:23,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:23,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:23,926 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:22:23,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:22:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:24,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:22:24,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:24,085 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:22:24,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:22:24,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752099728] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:24,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:22:24,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2022-10-16 14:22:24,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441611004] [2022-10-16 14:22:24,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:24,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:22:24,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:24,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:22:24,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:22:24,090 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:24,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:24,136 INFO L93 Difference]: Finished difference Result 103 states and 111 transitions. [2022-10-16 14:22:24,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:22:24,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-10-16 14:22:24,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:24,138 INFO L225 Difference]: With dead ends: 103 [2022-10-16 14:22:24,138 INFO L226 Difference]: Without dead ends: 82 [2022-10-16 14:22:24,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:22:24,140 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 98 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:24,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 88 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:24,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-16 14:22:24,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 61. [2022-10-16 14:22:24,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.2653061224489797) internal successors, (62), 57 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:24,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2022-10-16 14:22:24,152 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 32 [2022-10-16 14:22:24,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:24,154 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2022-10-16 14:22:24,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:24,155 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2022-10-16 14:22:24,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 14:22:24,159 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:24,160 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:24,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:22:24,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:24,375 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:24,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:24,376 INFO L85 PathProgramCache]: Analyzing trace with hash 215281290, now seen corresponding path program 1 times [2022-10-16 14:22:24,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:24,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141286275] [2022-10-16 14:22:24,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:24,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:24,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:24,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:24,525 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:22:24,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:24,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141286275] [2022-10-16 14:22:24,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141286275] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:24,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:22:24,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:22:24,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981022242] [2022-10-16 14:22:24,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:24,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:22:24,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:24,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:22:24,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:22:24,529 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:24,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:24,615 INFO L93 Difference]: Finished difference Result 115 states and 128 transitions. [2022-10-16 14:22:24,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:22:24,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-10-16 14:22:24,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:24,617 INFO L225 Difference]: With dead ends: 115 [2022-10-16 14:22:24,617 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 14:22:24,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:22:24,621 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 21 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:24,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 205 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:22:24,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 14:22:24,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2022-10-16 14:22:24,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 60 states have (on average 1.3) internal successors, (78), 68 states have internal predecessors, (78), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:24,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2022-10-16 14:22:24,632 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 32 [2022-10-16 14:22:24,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:24,633 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2022-10-16 14:22:24,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:24,633 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2022-10-16 14:22:24,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 14:22:24,636 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:24,636 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:24,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 14:22:24,637 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:24,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:24,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1916214506, now seen corresponding path program 1 times [2022-10-16 14:22:24,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:24,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804764584] [2022-10-16 14:22:24,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:24,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:24,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:24,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:24,835 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:22:24,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:24,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804764584] [2022-10-16 14:22:24,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804764584] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:24,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089673197] [2022-10-16 14:22:24,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:24,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:24,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:24,837 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:22:24,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:22:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:24,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:22:24,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:25,006 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:22:25,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:22:25,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089673197] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:25,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:22:25,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2022-10-16 14:22:25,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400727181] [2022-10-16 14:22:25,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:25,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:22:25,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:25,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:22:25,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:22:25,009 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:25,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:25,075 INFO L93 Difference]: Finished difference Result 125 states and 138 transitions. [2022-10-16 14:22:25,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:22:25,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-10-16 14:22:25,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:25,077 INFO L225 Difference]: With dead ends: 125 [2022-10-16 14:22:25,077 INFO L226 Difference]: Without dead ends: 93 [2022-10-16 14:22:25,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:22:25,078 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 102 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:25,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 125 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:25,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-10-16 14:22:25,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 72. [2022-10-16 14:22:25,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 68 states have internal predecessors, (77), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:25,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2022-10-16 14:22:25,087 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 33 [2022-10-16 14:22:25,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:25,088 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2022-10-16 14:22:25,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:25,088 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2022-10-16 14:22:25,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 14:22:25,089 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:25,089 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:25,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:22:25,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:25,304 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:25,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:25,305 INFO L85 PathProgramCache]: Analyzing trace with hash -965457464, now seen corresponding path program 1 times [2022-10-16 14:22:25,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:25,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179898640] [2022-10-16 14:22:25,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:25,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:25,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:25,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:25,510 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:22:25,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:25,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179898640] [2022-10-16 14:22:25,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179898640] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:25,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78550426] [2022-10-16 14:22:25,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:25,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:25,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:25,513 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:22:25,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:22:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:25,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:22:25,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:25,719 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:22:25,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:22:25,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78550426] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:25,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:22:25,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2022-10-16 14:22:25,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354979618] [2022-10-16 14:22:25,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:25,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:22:25,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:25,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:22:25,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:22:25,721 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:25,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:25,775 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2022-10-16 14:22:25,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:22:25,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-10-16 14:22:25,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:25,777 INFO L225 Difference]: With dead ends: 86 [2022-10-16 14:22:25,777 INFO L226 Difference]: Without dead ends: 84 [2022-10-16 14:22:25,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:22:25,778 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 75 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:25,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 110 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:25,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-10-16 14:22:25,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 70. [2022-10-16 14:22:25,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 66 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:25,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2022-10-16 14:22:25,789 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 35 [2022-10-16 14:22:25,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:25,789 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2022-10-16 14:22:25,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:25,789 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2022-10-16 14:22:25,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 14:22:25,790 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:25,790 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:25,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:22:26,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 14:22:26,006 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:26,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:26,008 INFO L85 PathProgramCache]: Analyzing trace with hash 135589784, now seen corresponding path program 1 times [2022-10-16 14:22:26,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:26,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782879722] [2022-10-16 14:22:26,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:26,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:26,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:26,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:26,143 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:22:26,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:26,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782879722] [2022-10-16 14:22:26,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782879722] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:26,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045023695] [2022-10-16 14:22:26,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:26,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:26,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:26,146 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:22:26,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:22:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:26,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:22:26,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:26,336 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:22:26,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:22:26,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045023695] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:26,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:22:26,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2022-10-16 14:22:26,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661670009] [2022-10-16 14:22:26,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:26,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:22:26,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:26,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:22:26,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:22:26,339 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:26,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:26,395 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2022-10-16 14:22:26,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:22:26,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2022-10-16 14:22:26,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:26,397 INFO L225 Difference]: With dead ends: 90 [2022-10-16 14:22:26,397 INFO L226 Difference]: Without dead ends: 89 [2022-10-16 14:22:26,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:22:26,398 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 82 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:26,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 122 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:26,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-16 14:22:26,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 75. [2022-10-16 14:22:26,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 71 states have internal predecessors, (79), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:26,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2022-10-16 14:22:26,408 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 36 [2022-10-16 14:22:26,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:26,408 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2022-10-16 14:22:26,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:26,409 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2022-10-16 14:22:26,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 14:22:26,409 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:26,409 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:26,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:22:26,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 14:22:26,624 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:26,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:26,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1042700209, now seen corresponding path program 1 times [2022-10-16 14:22:26,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:26,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397529843] [2022-10-16 14:22:26,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:26,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:26,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:26,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:26,887 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:22:26,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:26,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397529843] [2022-10-16 14:22:26,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397529843] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:26,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477579133] [2022-10-16 14:22:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:26,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:26,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:26,889 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:22:26,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 14:22:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:27,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:22:27,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:27,103 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:22:27,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:22:27,182 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:22:27,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477579133] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:22:27,182 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:22:27,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 10 [2022-10-16 14:22:27,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6318852] [2022-10-16 14:22:27,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:22:27,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:22:27,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:27,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:22:27,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:22:27,184 INFO L87 Difference]: Start difference. First operand 75 states and 83 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 14:22:27,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:27,385 INFO L93 Difference]: Finished difference Result 126 states and 139 transitions. [2022-10-16 14:22:27,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 14:22:27,386 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2022-10-16 14:22:27,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:27,387 INFO L225 Difference]: With dead ends: 126 [2022-10-16 14:22:27,387 INFO L226 Difference]: Without dead ends: 82 [2022-10-16 14:22:27,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 80 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:22:27,389 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 137 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:27,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 209 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:22:27,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-16 14:22:27,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 62. [2022-10-16 14:22:27,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.169811320754717) internal successors, (62), 58 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:27,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2022-10-16 14:22:27,396 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 41 [2022-10-16 14:22:27,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:27,397 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2022-10-16 14:22:27,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 14:22:27,397 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2022-10-16 14:22:27,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 14:22:27,398 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:27,398 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:27,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:22:27,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 14:22:27,613 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:27,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:27,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1787948312, now seen corresponding path program 1 times [2022-10-16 14:22:27,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:27,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096873109] [2022-10-16 14:22:27,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:27,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:27,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:27,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:22:27,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:27,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096873109] [2022-10-16 14:22:27,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096873109] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:27,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211372143] [2022-10-16 14:22:27,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:27,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:27,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:27,749 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:22:27,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:22:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:27,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:22:27,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:27,950 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:22:27,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:22:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:22:28,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211372143] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:22:28,002 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:22:28,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 8 [2022-10-16 14:22:28,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612003825] [2022-10-16 14:22:28,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:22:28,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 14:22:28,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:28,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 14:22:28,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:22:28,004 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 14:22:28,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:28,121 INFO L93 Difference]: Finished difference Result 100 states and 107 transitions. [2022-10-16 14:22:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:22:28,122 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2022-10-16 14:22:28,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:28,123 INFO L225 Difference]: With dead ends: 100 [2022-10-16 14:22:28,123 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 14:22:28,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 88 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:22:28,124 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 145 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:28,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 176 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:22:28,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 14:22:28,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 63. [2022-10-16 14:22:28,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 59 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:28,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2022-10-16 14:22:28,132 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 44 [2022-10-16 14:22:28,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:28,132 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2022-10-16 14:22:28,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 14:22:28,133 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2022-10-16 14:22:28,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 14:22:28,133 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:28,133 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:28,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 14:22:28,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 14:22:28,348 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:28,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:28,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1848906523, now seen corresponding path program 1 times [2022-10-16 14:22:28,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:28,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669232933] [2022-10-16 14:22:28,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:28,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:28,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:28,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:28,495 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:22:28,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:28,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669232933] [2022-10-16 14:22:28,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669232933] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:28,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:22:28,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:22:28,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614933443] [2022-10-16 14:22:28,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:28,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:22:28,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:28,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:22:28,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:22:28,498 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:28,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:28,570 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2022-10-16 14:22:28,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:22:28,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-10-16 14:22:28,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:28,572 INFO L225 Difference]: With dead ends: 65 [2022-10-16 14:22:28,572 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 14:22:28,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:22:28,573 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 34 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:28,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 153 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:22:28,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 14:22:28,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2022-10-16 14:22:28,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 54 states have (on average 1.1481481481481481) internal successors, (62), 58 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:28,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2022-10-16 14:22:28,581 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 45 [2022-10-16 14:22:28,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:28,581 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2022-10-16 14:22:28,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:28,581 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2022-10-16 14:22:28,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 14:22:28,582 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:28,582 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:28,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 14:22:28,583 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:28,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:28,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1497431189, now seen corresponding path program 2 times [2022-10-16 14:22:28,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:28,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216370442] [2022-10-16 14:22:28,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:28,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:28,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:28,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:28,783 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 14:22:28,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:28,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216370442] [2022-10-16 14:22:28,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216370442] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:28,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906447603] [2022-10-16 14:22:28,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:22:28,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:28,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:28,786 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:22:28,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 14:22:28,929 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:22:28,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:22:28,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:22:28,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:28,987 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 14:22:28,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:22:28,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906447603] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:28,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:22:28,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2022-10-16 14:22:28,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536015746] [2022-10-16 14:22:28,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:28,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:22:28,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:28,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:22:28,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:22:28,990 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:29,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:29,077 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2022-10-16 14:22:29,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:22:29,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 53 [2022-10-16 14:22:29,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:29,079 INFO L225 Difference]: With dead ends: 76 [2022-10-16 14:22:29,079 INFO L226 Difference]: Without dead ends: 75 [2022-10-16 14:22:29,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:22:29,080 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 82 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:29,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 140 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:29,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-10-16 14:22:29,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 66. [2022-10-16 14:22:29,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 62 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:29,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2022-10-16 14:22:29,088 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 53 [2022-10-16 14:22:29,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:29,088 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2022-10-16 14:22:29,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:29,089 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2022-10-16 14:22:29,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 14:22:29,089 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:29,090 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:29,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-10-16 14:22:29,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:29,305 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:29,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:29,306 INFO L85 PathProgramCache]: Analyzing trace with hash 824273525, now seen corresponding path program 1 times [2022-10-16 14:22:29,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:29,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232723409] [2022-10-16 14:22:29,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:29,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:29,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:29,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:29,391 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 14:22:29,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:29,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232723409] [2022-10-16 14:22:29,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232723409] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:29,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:22:29,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:22:29,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506896107] [2022-10-16 14:22:29,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:29,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:22:29,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:29,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:22:29,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:22:29,393 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:29,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:29,419 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2022-10-16 14:22:29,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:22:29,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2022-10-16 14:22:29,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:29,421 INFO L225 Difference]: With dead ends: 66 [2022-10-16 14:22:29,421 INFO L226 Difference]: Without dead ends: 65 [2022-10-16 14:22:29,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:22:29,422 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 1 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:29,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 132 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:29,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-16 14:22:29,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-10-16 14:22:29,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 58 states have (on average 1.1379310344827587) internal successors, (66), 61 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:29,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2022-10-16 14:22:29,430 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 54 [2022-10-16 14:22:29,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:29,430 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2022-10-16 14:22:29,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:29,431 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2022-10-16 14:22:29,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 14:22:29,431 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:29,431 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:29,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 14:22:29,432 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:29,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:29,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1553151706, now seen corresponding path program 1 times [2022-10-16 14:22:29,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:29,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070055397] [2022-10-16 14:22:29,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:29,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:29,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:29,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:29,624 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 14:22:29,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:29,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070055397] [2022-10-16 14:22:29,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070055397] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:29,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171344988] [2022-10-16 14:22:29,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:29,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:29,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:29,626 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:22:29,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 14:22:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:29,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:22:29,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:29,884 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 14:22:29,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:22:29,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171344988] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:29,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:22:29,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2022-10-16 14:22:29,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60305801] [2022-10-16 14:22:29,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:29,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:22:29,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:29,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:22:29,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:22:29,886 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:29,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:29,951 INFO L93 Difference]: Finished difference Result 90 states and 97 transitions. [2022-10-16 14:22:29,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:22:29,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-10-16 14:22:29,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:29,953 INFO L225 Difference]: With dead ends: 90 [2022-10-16 14:22:29,953 INFO L226 Difference]: Without dead ends: 74 [2022-10-16 14:22:29,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:22:29,954 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 62 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:29,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 110 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:29,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-16 14:22:29,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 66. [2022-10-16 14:22:29,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 59 states have (on average 1.1355932203389831) internal successors, (67), 62 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:29,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2022-10-16 14:22:29,963 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 57 [2022-10-16 14:22:29,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:29,963 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2022-10-16 14:22:29,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:29,964 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2022-10-16 14:22:29,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 14:22:29,964 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:29,965 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:30,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 14:22:30,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 14:22:30,181 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:30,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:30,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1842699814, now seen corresponding path program 1 times [2022-10-16 14:22:30,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:30,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264059261] [2022-10-16 14:22:30,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:30,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:30,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:30,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:30,359 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 14:22:30,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:30,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264059261] [2022-10-16 14:22:30,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264059261] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:30,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994924662] [2022-10-16 14:22:30,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:30,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:30,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:30,362 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:22:30,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 14:22:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:30,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:22:30,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:30,615 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 14:22:30,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:22:30,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994924662] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:30,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:22:30,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2022-10-16 14:22:30,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931782134] [2022-10-16 14:22:30,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:30,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:22:30,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:30,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:22:30,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:22:30,617 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:30,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:30,662 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2022-10-16 14:22:30,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:22:30,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 60 [2022-10-16 14:22:30,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:30,664 INFO L225 Difference]: With dead ends: 66 [2022-10-16 14:22:30,664 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 14:22:30,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:22:30,665 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 33 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:30,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 96 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:30,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 14:22:30,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-10-16 14:22:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 59 states have (on average 1.1016949152542372) internal successors, (65), 60 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:30,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2022-10-16 14:22:30,694 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 60 [2022-10-16 14:22:30,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:30,694 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2022-10-16 14:22:30,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:30,694 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2022-10-16 14:22:30,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 14:22:30,695 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:30,695 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:30,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 14:22:30,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:30,901 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:30,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:30,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1289119531, now seen corresponding path program 1 times [2022-10-16 14:22:30,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:30,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948567274] [2022-10-16 14:22:30,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:30,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:30,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:31,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:31,008 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 14:22:31,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:31,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948567274] [2022-10-16 14:22:31,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948567274] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:22:31,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:22:31,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:22:31,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716549889] [2022-10-16 14:22:31,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:22:31,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:22:31,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:31,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:22:31,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:22:31,011 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:31,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:31,060 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2022-10-16 14:22:31,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:22:31,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 61 [2022-10-16 14:22:31,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:31,061 INFO L225 Difference]: With dead ends: 64 [2022-10-16 14:22:31,062 INFO L226 Difference]: Without dead ends: 63 [2022-10-16 14:22:31,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:22:31,063 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 14 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:31,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 125 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:22:31,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-16 14:22:31,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-10-16 14:22:31,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 59 states have (on average 1.0847457627118644) internal successors, (64), 59 states have internal predecessors, (64), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:22:31,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2022-10-16 14:22:31,074 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 61 [2022-10-16 14:22:31,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:31,075 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2022-10-16 14:22:31,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:22:31,075 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2022-10-16 14:22:31,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 14:22:31,078 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:22:31,078 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:31,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 14:22:31,079 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:22:31,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:22:31,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1539549640, now seen corresponding path program 1 times [2022-10-16 14:22:31,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:22:31,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959832713] [2022-10-16 14:22:31,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:31,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:22:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:31,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:22:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:31,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 14:22:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 14:22:31,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:22:31,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959832713] [2022-10-16 14:22:31,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959832713] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:22:31,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145184105] [2022-10-16 14:22:31,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:22:31,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:31,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:22:31,301 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:22:31,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 14:22:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:22:31,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:22:31,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:22:31,559 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 14:22:31,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:22:31,641 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 14:22:31,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145184105] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:22:31,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:22:31,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 9 [2022-10-16 14:22:31,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106432956] [2022-10-16 14:22:31,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:22:31,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:22:31,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:22:31,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:22:31,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:22:31,643 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 14:22:31,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:22:31,814 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2022-10-16 14:22:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:22:31,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 66 [2022-10-16 14:22:31,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:22:31,815 INFO L225 Difference]: With dead ends: 79 [2022-10-16 14:22:31,815 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 14:22:31,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:22:31,816 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 44 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:22:31,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 180 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:22:31,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 14:22:31,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 14:22:31,817 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 14:22:31,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 14:22:31,817 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2022-10-16 14:22:31,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:22:31,818 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 14:22:31,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 14:22:31,818 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 14:22:31,818 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 14:22:31,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-10-16 14:22:31,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-10-16 14:22:31,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-10-16 14:22:31,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-10-16 14:22:31,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-10-16 14:22:31,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-10-16 14:22:31,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-10-16 14:22:31,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-10-16 14:22:31,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-10-16 14:22:31,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-10-16 14:22:31,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-10-16 14:22:31,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-10-16 14:22:31,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-10-16 14:22:31,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-10-16 14:22:31,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-10-16 14:22:31,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-10-16 14:22:31,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-10-16 14:22:31,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-10-16 14:22:31,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 14:22:32,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:22:32,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 14:22:35,339 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 625) no Hoare annotation was computed. [2022-10-16 14:22:35,339 INFO L902 garLoopResultBuilder]: At program point L638(lines 620 639) the Hoare annotation is: true [2022-10-16 14:22:35,339 INFO L899 garLoopResultBuilder]: For program point L630(line 630) no Hoare annotation was computed. [2022-10-16 14:22:35,340 INFO L899 garLoopResultBuilder]: For program point L630-1(line 630) no Hoare annotation was computed. [2022-10-16 14:22:35,340 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 609) no Hoare annotation was computed. [2022-10-16 14:22:35,340 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 616) no Hoare annotation was computed. [2022-10-16 14:22:35,341 INFO L895 garLoopResultBuilder]: At program point L614-2(lines 614 617) the Hoare annotation is: (let ((.cse0 (<= 2 |ULTIMATE.start_main_~len~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~len~0#1| 2)) (.cse2 (<= |ULTIMATE.start_sll_circular_create_~len#1| 1)) (.cse3 (<= |ULTIMATE.start_main_~i~0#1| 1))) (or (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_sll_circular_update_at_~index#1| 1) .cse1 .cse2 .cse3) (and .cse0 .cse1 (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse2 .cse3 (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_sll_circular_update_at_~index#1|)))) [2022-10-16 14:22:35,341 INFO L899 garLoopResultBuilder]: For program point L614-3(lines 614 617) no Hoare annotation was computed. [2022-10-16 14:22:35,341 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 590) no Hoare annotation was computed. [2022-10-16 14:22:35,341 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 14:22:35,341 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 14:22:35,341 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 633) no Hoare annotation was computed. [2022-10-16 14:22:35,341 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 629) no Hoare annotation was computed. [2022-10-16 14:22:35,342 INFO L902 garLoopResultBuilder]: At program point L598-2(lines 598 602) the Hoare annotation is: true [2022-10-16 14:22:35,342 INFO L899 garLoopResultBuilder]: For program point L598-3(lines 598 602) no Hoare annotation was computed. [2022-10-16 14:22:35,342 INFO L899 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2022-10-16 14:22:35,342 INFO L899 garLoopResultBuilder]: For program point L590-1(line 590) no Hoare annotation was computed. [2022-10-16 14:22:35,342 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 625) no Hoare annotation was computed. [2022-10-16 14:22:35,342 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 590) no Hoare annotation was computed. [2022-10-16 14:22:35,343 INFO L895 garLoopResultBuilder]: At program point L607-2(lines 607 610) the Hoare annotation is: (let ((.cse0 (<= 2 |ULTIMATE.start_main_~len~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~len~0#1| 2)) (.cse2 (<= |ULTIMATE.start_sll_circular_update_at_~index#1| 0)) (.cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse4 (<= |ULTIMATE.start_sll_circular_create_~len#1| 1))) (or (and .cse0 (<= |ULTIMATE.start_sll_circular_get_data_at_~index#1| 0) (<= |ULTIMATE.start_main_~i~0#1| 0) .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse1 .cse2 .cse3 .cse4 (<= |ULTIMATE.start_sll_circular_get_data_at_~index#1| 1) (<= |ULTIMATE.start_main_~i~0#1| 1)))) [2022-10-16 14:22:35,343 INFO L899 garLoopResultBuilder]: For program point L607-3(lines 607 610) no Hoare annotation was computed. [2022-10-16 14:22:35,343 INFO L902 garLoopResultBuilder]: At program point L632(lines 620 639) the Hoare annotation is: true [2022-10-16 14:22:35,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 629) no Hoare annotation was computed. [2022-10-16 14:22:35,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 625) no Hoare annotation was computed. [2022-10-16 14:22:35,343 INFO L899 garLoopResultBuilder]: For program point L616(line 616) no Hoare annotation was computed. [2022-10-16 14:22:35,343 INFO L899 garLoopResultBuilder]: For program point L616-1(line 616) no Hoare annotation was computed. [2022-10-16 14:22:35,343 INFO L899 garLoopResultBuilder]: For program point L625(line 625) no Hoare annotation was computed. [2022-10-16 14:22:35,344 INFO L899 garLoopResultBuilder]: For program point L625-1(line 625) no Hoare annotation was computed. [2022-10-16 14:22:35,344 INFO L899 garLoopResultBuilder]: For program point L625-4(lines 625 628) no Hoare annotation was computed. [2022-10-16 14:22:35,344 INFO L899 garLoopResultBuilder]: For program point L625-5(line 625) no Hoare annotation was computed. [2022-10-16 14:22:35,344 INFO L899 garLoopResultBuilder]: For program point L625-6(line 625) no Hoare annotation was computed. [2022-10-16 14:22:35,344 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 629) no Hoare annotation was computed. [2022-10-16 14:22:35,344 INFO L895 garLoopResultBuilder]: At program point L625-7(lines 625 628) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~len~0#1| 2)) (.cse1 (<= |ULTIMATE.start_sll_circular_create_~len#1| 1))) (or (and (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 0) .cse0 (<= |ULTIMATE.start_sll_circular_update_at_~index#1| 0) .cse1) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~i~0#1| 1) |ULTIMATE.start_main_~len~0#1|) .cse0 .cse1))) [2022-10-16 14:22:35,344 INFO L899 garLoopResultBuilder]: For program point L625-8(lines 625 628) no Hoare annotation was computed. [2022-10-16 14:22:35,345 INFO L895 garLoopResultBuilder]: At program point L584(line 584) the Hoare annotation is: (and (= 2 |ULTIMATE.start_sll_circular_create_~len#1|) (= |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_sll_circular_create_~len#1|)) [2022-10-16 14:22:35,345 INFO L899 garLoopResultBuilder]: For program point L584-1(line 584) no Hoare annotation was computed. [2022-10-16 14:22:35,345 INFO L899 garLoopResultBuilder]: For program point L609(line 609) no Hoare annotation was computed. [2022-10-16 14:22:35,345 INFO L899 garLoopResultBuilder]: For program point L609-1(line 609) no Hoare annotation was computed. [2022-10-16 14:22:35,345 INFO L899 garLoopResultBuilder]: For program point L626(line 626) no Hoare annotation was computed. [2022-10-16 14:22:35,345 INFO L895 garLoopResultBuilder]: At program point L593(lines 583 594) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1)) [2022-10-16 14:22:35,345 INFO L899 garLoopResultBuilder]: For program point L626-1(line 626) no Hoare annotation was computed. [2022-10-16 14:22:35,345 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 629) no Hoare annotation was computed. [2022-10-16 14:22:35,345 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 14:22:35,346 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 626) no Hoare annotation was computed. [2022-10-16 14:22:35,346 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 630) no Hoare annotation was computed. [2022-10-16 14:22:35,346 INFO L895 garLoopResultBuilder]: At program point L586-2(lines 586 591) the Hoare annotation is: (or (and (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1)) (and (= 2 |ULTIMATE.start_sll_circular_create_~len#1|) (= |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_sll_circular_create_~len#1|))) [2022-10-16 14:22:35,346 INFO L899 garLoopResultBuilder]: For program point L586-3(lines 586 591) no Hoare annotation was computed. [2022-10-16 14:22:35,346 INFO L895 garLoopResultBuilder]: At program point L611(lines 606 612) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_sll_circular_get_data_at_~index#1| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_sll_circular_update_at_~index#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= |ULTIMATE.start_main_~i~0#1| 1)) [2022-10-16 14:22:35,346 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 14:22:35,346 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 626) no Hoare annotation was computed. [2022-10-16 14:22:35,347 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 605) no Hoare annotation was computed. [2022-10-16 14:22:35,347 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 630) no Hoare annotation was computed. [2022-10-16 14:22:35,347 INFO L895 garLoopResultBuilder]: At program point L587(line 587) the Hoare annotation is: (and (= 2 |ULTIMATE.start_sll_circular_create_~len#1|) (= |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_sll_circular_create_~len#1|)) [2022-10-16 14:22:35,347 INFO L899 garLoopResultBuilder]: For program point L587-1(line 587) no Hoare annotation was computed. [2022-10-16 14:22:35,347 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 625) no Hoare annotation was computed. [2022-10-16 14:22:35,347 INFO L899 garLoopResultBuilder]: For program point L629(line 629) no Hoare annotation was computed. [2022-10-16 14:22:35,347 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 604) no Hoare annotation was computed. [2022-10-16 14:22:35,347 INFO L899 garLoopResultBuilder]: For program point L629-3(lines 629 634) no Hoare annotation was computed. [2022-10-16 14:22:35,348 INFO L899 garLoopResultBuilder]: For program point L629-4(line 629) no Hoare annotation was computed. [2022-10-16 14:22:35,348 INFO L899 garLoopResultBuilder]: For program point L629-5(line 629) no Hoare annotation was computed. [2022-10-16 14:22:35,348 INFO L895 garLoopResultBuilder]: At program point L629-6(lines 629 634) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~len~0#1| 2)) (.cse1 (<= |ULTIMATE.start_sll_circular_update_at_~index#1| 0)) (.cse2 (<= |ULTIMATE.start_sll_circular_create_~len#1| 1))) (or (and (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_sll_circular_get_data_at_~index#1| 0) (<= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~i~0#1| 1) |ULTIMATE.start_main_~len~0#1|) .cse0 .cse1 .cse2))) [2022-10-16 14:22:35,348 INFO L899 garLoopResultBuilder]: For program point L629-7(lines 629 634) no Hoare annotation was computed. [2022-10-16 14:22:35,348 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 609) no Hoare annotation was computed. [2022-10-16 14:22:35,348 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 616) no Hoare annotation was computed. [2022-10-16 14:22:35,348 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 619) no Hoare annotation was computed. [2022-10-16 14:22:35,348 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 578) no Hoare annotation was computed. [2022-10-16 14:22:35,349 INFO L899 garLoopResultBuilder]: For program point L576-1(lines 576 578) no Hoare annotation was computed. [2022-10-16 14:22:35,349 INFO L902 garLoopResultBuilder]: At program point L572(line 572) the Hoare annotation is: true [2022-10-16 14:22:35,349 INFO L895 garLoopResultBuilder]: At program point node_createENTRY(lines 574 582) 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 14:22:35,349 INFO L899 garLoopResultBuilder]: For program point node_createFINAL(lines 574 582) no Hoare annotation was computed. [2022-10-16 14:22:35,349 INFO L899 garLoopResultBuilder]: For program point node_createEXIT(lines 574 582) no Hoare annotation was computed. [2022-10-16 14:22:35,353 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:22:35,356 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 14:22:35,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:22:35 BoogieIcfgContainer [2022-10-16 14:22:35,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 14:22:35,378 INFO L158 Benchmark]: Toolchain (without parser) took 18768.65ms. Allocated memory was 157.3MB in the beginning and 275.8MB in the end (delta: 118.5MB). Free memory was 129.6MB in the beginning and 118.3MB in the end (delta: 11.4MB). Peak memory consumption was 160.2MB. Max. memory is 8.0GB. [2022-10-16 14:22:35,378 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 157.3MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 14:22:35,378 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.48ms. Allocated memory is still 157.3MB. Free memory was 129.4MB in the beginning and 112.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-10-16 14:22:35,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.71ms. Allocated memory is still 157.3MB. Free memory was 112.5MB in the beginning and 110.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 14:22:35,379 INFO L158 Benchmark]: Boogie Preprocessor took 43.10ms. Allocated memory is still 157.3MB. Free memory was 110.4MB in the beginning and 108.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 14:22:35,379 INFO L158 Benchmark]: RCFGBuilder took 647.19ms. Allocated memory is still 157.3MB. Free memory was 108.7MB in the beginning and 125.2MB in the end (delta: -16.5MB). Peak memory consumption was 6.7MB. Max. memory is 8.0GB. [2022-10-16 14:22:35,380 INFO L158 Benchmark]: TraceAbstraction took 17454.44ms. Allocated memory was 157.3MB in the beginning and 275.8MB in the end (delta: 118.5MB). Free memory was 124.6MB in the beginning and 118.3MB in the end (delta: 6.4MB). Peak memory consumption was 154.5MB. Max. memory is 8.0GB. [2022-10-16 14:22:35,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 157.3MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 550.48ms. Allocated memory is still 157.3MB. Free memory was 129.4MB in the beginning and 112.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.71ms. Allocated memory is still 157.3MB. Free memory was 112.5MB in the beginning and 110.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.10ms. Allocated memory is still 157.3MB. Free memory was 110.4MB in the beginning and 108.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 647.19ms. Allocated memory is still 157.3MB. Free memory was 108.7MB in the beginning and 125.2MB in the end (delta: -16.5MB). Peak memory consumption was 6.7MB. Max. memory is 8.0GB. * TraceAbstraction took 17454.44ms. Allocated memory was 157.3MB in the beginning and 275.8MB in the end (delta: 118.5MB). Free memory was 124.6MB in the beginning and 118.3MB in the end (delta: 6.4MB). Peak memory consumption was 154.5MB. 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: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 626]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 626]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 616]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 616]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 625]: 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 - PositiveResult [Line: 630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 609]: 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, 71 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 17.4s, OverallIterations: 25, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1440 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1437 mSDsluCounter, 3520 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2342 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1275 IncrementalHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 1178 mSDtfsCounter, 1275 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 984 GetRequests, 811 SyntacticMatches, 14 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=16, InterpolantAutomatonStates: 148, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 25 MinimizatonAttempts, 228 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 18 PreInvPairs, 38 NumberOfFragments, 241 HoareAnnotationTreeSize, 18 FomulaSimplifications, 128 FormulaSimplificationTreeSizeReduction, 2.7s HoareSimplificationTime, 14 FomulaSimplificationsInter, 125034 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 1486 NumberOfCodeBlocks, 1457 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 1594 ConstructedInterpolants, 0 QuantifiedInterpolants, 4349 SizeOfPredicates, 34 NumberOfNonLiveVariables, 3911 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 43 InterpolantComputations, 22 PerfectInterpolantSequences, 448/479 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 18 specifications checked. All of them hold - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 598]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((2 <= len && index <= 0) && len <= 2) && index <= 0) && 0 <= i) && len <= 1) && i <= 1 - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: ((2 <= len && len <= 2) && len <= 1) || (2 == len && len == len) - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: (((((2 <= len && index <= 0) && i <= 0) && len <= 2) && index <= 0) && len <= 1) || ((((1 <= i && i + 1 <= len) && len <= 2) && index <= 0) && len <= 1) - InvariantResult [Line: 625]: Loop Invariant Derived loop invariant: ((((2 <= len && i <= 0) && len <= 2) && index <= 0) && len <= 1) || (((1 <= i && i + 1 <= len) && len <= 2) && len <= 1) - InvariantResult [Line: 614]: Loop Invariant Derived loop invariant: (((((2 <= len && 1 <= i) && index <= 1) && len <= 2) && len <= 1) && i <= 1) || (((((2 <= len && len <= 2) && 0 <= i) && len <= 1) && i <= 1) && i == index) - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (2 <= len && len <= 2) && len <= 1 - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: ((((((2 <= len && index <= 0) && i <= 0) && len <= 2) && index <= 0) && 0 <= i) && len <= 1) || (((((((2 <= len && 1 <= i) && len <= 2) && index <= 0) && 0 <= i) && len <= 1) && index <= 1) && i <= 1) RESULT: Ultimate proved your program to be correct! [2022-10-16 14:22:35,432 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...