/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/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:00:20,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:00:20,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:00:20,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:00:20,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:00:20,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:00:20,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:00:20,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:00:20,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:00:20,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:00:20,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:00:20,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:00:20,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:00:20,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:00:20,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:00:20,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:00:20,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:00:20,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:00:20,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:00:20,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:00:20,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:00:20,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:00:20,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:00:20,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:00:20,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 15:00:20,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:00:20,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:00:20,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:00:20,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:00:20,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:00:20,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:00:20,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:00:20,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:00:20,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:00:20,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:00:20,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:00:20,545 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 15:00:20,600 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:00:20,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:00:20,601 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:00:20,601 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:00:20,603 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:00:20,603 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:00:20,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:00:20,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:00:20,607 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:00:20,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:00:20,608 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:00:20,608 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:00:20,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:00:20,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:00:20,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:00:20,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:00:20,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:00:20,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:00:20,610 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:00:20,610 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:00:20,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:00:20,611 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:00:20,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:00:20,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:00:20,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:00:20,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:00:20,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:00:20,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:00:20,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:00:20,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:00:20,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:00:20,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:00:20,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:00:20,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:00:21,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:00:21,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:00:21,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:00:21,120 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:00:21,120 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:00:21,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.BOUNDED-10.pals.c [2022-10-16 15:00:21,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ad498196/8b10afddf57347128fc5be38f1dc8210/FLAG9923381aa [2022-10-16 15:00:21,861 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:00:21,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.BOUNDED-10.pals.c [2022-10-16 15:00:21,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ad498196/8b10afddf57347128fc5be38f1dc8210/FLAG9923381aa [2022-10-16 15:00:22,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ad498196/8b10afddf57347128fc5be38f1dc8210 [2022-10-16 15:00:22,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:00:22,137 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:00:22,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:00:22,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:00:22,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:00:22,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:00:22" (1/1) ... [2022-10-16 15:00:22,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2074ae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:22, skipping insertion in model container [2022-10-16 15:00:22,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:00:22" (1/1) ... [2022-10-16 15:00:22,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:00:22,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:00:22,615 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/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.BOUNDED-10.pals.c[11857,11870] [2022-10-16 15:00:22,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:00:22,634 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:00:22,722 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/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.BOUNDED-10.pals.c[11857,11870] [2022-10-16 15:00:22,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:00:22,740 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:00:22,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:22 WrapperNode [2022-10-16 15:00:22,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:00:22,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:00:22,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:00:22,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:00:22,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:22" (1/1) ... [2022-10-16 15:00:22,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:22" (1/1) ... [2022-10-16 15:00:22,809 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 418 [2022-10-16 15:00:22,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:00:22,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:00:22,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:00:22,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:00:22,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:22" (1/1) ... [2022-10-16 15:00:22,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:22" (1/1) ... [2022-10-16 15:00:22,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:22" (1/1) ... [2022-10-16 15:00:22,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:22" (1/1) ... [2022-10-16 15:00:22,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:22" (1/1) ... [2022-10-16 15:00:22,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:22" (1/1) ... [2022-10-16 15:00:22,851 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:22" (1/1) ... [2022-10-16 15:00:22,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:22" (1/1) ... [2022-10-16 15:00:22,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:00:22,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:00:22,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:00:22,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:00:22,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:22" (1/1) ... [2022-10-16 15:00:22,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:00:22,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:22,919 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 15:00:22,921 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 15:00:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:00:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2022-10-16 15:00:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2022-10-16 15:00:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:00:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:00:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2022-10-16 15:00:22,998 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2022-10-16 15:00:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2022-10-16 15:00:22,999 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2022-10-16 15:00:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2022-10-16 15:00:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2022-10-16 15:00:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:00:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:00:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:00:23,265 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:00:23,271 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:00:23,904 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:00:23,925 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:00:23,926 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 15:00:23,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:00:23 BoogieIcfgContainer [2022-10-16 15:00:23,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:00:23,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:00:23,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:00:23,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:00:23,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:00:22" (1/3) ... [2022-10-16 15:00:23,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663211c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:00:23, skipping insertion in model container [2022-10-16 15:00:23,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:22" (2/3) ... [2022-10-16 15:00:23,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663211c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:00:23, skipping insertion in model container [2022-10-16 15:00:23,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:00:23" (3/3) ... [2022-10-16 15:00:23,944 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.2.ufo.BOUNDED-10.pals.c [2022-10-16 15:00:23,965 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:00:23,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 15:00:24,055 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:00:24,063 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;@50cf09b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:00:24,063 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 15:00:24,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 154 states have (on average 1.6233766233766234) internal successors, (250), 167 states have internal predecessors, (250), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-16 15:00:24,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 15:00:24,080 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:24,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:00:24,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:24,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:24,088 INFO L85 PathProgramCache]: Analyzing trace with hash -2073200156, now seen corresponding path program 1 times [2022-10-16 15:00:24,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:24,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765817126] [2022-10-16 15:00:24,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:24,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:24,375 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 15:00:24,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:24,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765817126] [2022-10-16 15:00:24,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765817126] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:24,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:00:24,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 15:00:24,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652208364] [2022-10-16 15:00:24,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:24,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:24,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:24,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:24,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 15:00:24,424 INFO L87 Difference]: Start difference. First operand has 202 states, 154 states have (on average 1.6233766233766234) internal successors, (250), 167 states have internal predecessors, (250), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:00:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:24,573 INFO L93 Difference]: Finished difference Result 425 states and 690 transitions. [2022-10-16 15:00:24,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:24,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 15:00:24,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:24,592 INFO L225 Difference]: With dead ends: 425 [2022-10-16 15:00:24,592 INFO L226 Difference]: Without dead ends: 221 [2022-10-16 15:00:24,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:00:24,612 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 37 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:24,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 902 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:24,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-10-16 15:00:24,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 214. [2022-10-16 15:00:24,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 165 states have (on average 1.5515151515151515) internal successors, (256), 177 states have internal predecessors, (256), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-10-16 15:00:24,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 322 transitions. [2022-10-16 15:00:24,738 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 322 transitions. Word has length 11 [2022-10-16 15:00:24,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:24,740 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 322 transitions. [2022-10-16 15:00:24,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:00:24,741 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 322 transitions. [2022-10-16 15:00:24,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 15:00:24,744 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:24,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:00:24,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 15:00:24,745 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:24,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:24,747 INFO L85 PathProgramCache]: Analyzing trace with hash -38298768, now seen corresponding path program 1 times [2022-10-16 15:00:24,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:24,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367412096] [2022-10-16 15:00:24,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:24,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:24,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:24,950 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 15:00:24,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:24,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367412096] [2022-10-16 15:00:24,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367412096] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:24,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:00:24,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 15:00:24,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560439082] [2022-10-16 15:00:24,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:24,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:24,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:24,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:24,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 15:00:24,959 INFO L87 Difference]: Start difference. First operand 214 states and 322 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 15:00:25,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:25,070 INFO L93 Difference]: Finished difference Result 451 states and 689 transitions. [2022-10-16 15:00:25,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 15:00:25,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-10-16 15:00:25,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:25,075 INFO L225 Difference]: With dead ends: 451 [2022-10-16 15:00:25,076 INFO L226 Difference]: Without dead ends: 249 [2022-10-16 15:00:25,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:00:25,079 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 21 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:25,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 890 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:25,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-10-16 15:00:25,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 245. [2022-10-16 15:00:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 191 states have (on average 1.5235602094240839) internal successors, (291), 203 states have internal predecessors, (291), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-10-16 15:00:25,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 367 transitions. [2022-10-16 15:00:25,111 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 367 transitions. Word has length 16 [2022-10-16 15:00:25,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:25,111 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 367 transitions. [2022-10-16 15:00:25,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 15:00:25,112 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 367 transitions. [2022-10-16 15:00:25,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 15:00:25,115 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:25,115 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:00:25,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 15:00:25,116 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:25,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:25,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2129193854, now seen corresponding path program 1 times [2022-10-16 15:00:25,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:25,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977288080] [2022-10-16 15:00:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:25,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:25,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:25,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 15:00:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:25,320 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 15:00:25,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:25,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977288080] [2022-10-16 15:00:25,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977288080] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:25,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:00:25,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 15:00:25,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459410322] [2022-10-16 15:00:25,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:25,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:25,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:25,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:25,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 15:00:25,331 INFO L87 Difference]: Start difference. First operand 245 states and 367 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 15:00:25,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:25,368 INFO L93 Difference]: Finished difference Result 249 states and 373 transitions. [2022-10-16 15:00:25,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 15:00:25,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2022-10-16 15:00:25,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:25,372 INFO L225 Difference]: With dead ends: 249 [2022-10-16 15:00:25,372 INFO L226 Difference]: Without dead ends: 248 [2022-10-16 15:00:25,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:00:25,374 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 23 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:25,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 853 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:25,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-10-16 15:00:25,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 244. [2022-10-16 15:00:25,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 191 states have (on average 1.5078534031413613) internal successors, (288), 202 states have internal predecessors, (288), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-10-16 15:00:25,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 364 transitions. [2022-10-16 15:00:25,396 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 364 transitions. Word has length 29 [2022-10-16 15:00:25,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:25,397 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 364 transitions. [2022-10-16 15:00:25,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 15:00:25,397 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 364 transitions. [2022-10-16 15:00:25,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 15:00:25,400 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:25,400 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 15:00:25,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 15:00:25,400 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:25,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:25,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1580500618, now seen corresponding path program 1 times [2022-10-16 15:00:25,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:25,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941356972] [2022-10-16 15:00:25,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:25,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:25,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:25,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:25,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 15:00:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:25,602 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 15:00:25,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:25,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941356972] [2022-10-16 15:00:25,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941356972] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:25,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130926408] [2022-10-16 15:00:25,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:25,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:25,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:25,605 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 15:00:25,614 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 15:00:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:25,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 15:00:25,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:25,799 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 15:00:25,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:25,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130926408] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:25,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:25,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 15:00:25,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271941888] [2022-10-16 15:00:25,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:25,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 15:00:25,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:25,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 15:00:25,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:25,802 INFO L87 Difference]: Start difference. First operand 244 states and 364 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 15:00:25,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:25,866 INFO L93 Difference]: Finished difference Result 248 states and 370 transitions. [2022-10-16 15:00:25,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 15:00:25,867 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), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2022-10-16 15:00:25,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:25,870 INFO L225 Difference]: With dead ends: 248 [2022-10-16 15:00:25,870 INFO L226 Difference]: Without dead ends: 247 [2022-10-16 15:00:25,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 15:00:25,873 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 42 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:25,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 1197 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:25,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-10-16 15:00:25,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 214. [2022-10-16 15:00:25,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 167 states have (on average 1.5089820359281436) internal successors, (252), 177 states have internal predecessors, (252), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-10-16 15:00:25,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 318 transitions. [2022-10-16 15:00:25,904 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 318 transitions. Word has length 30 [2022-10-16 15:00:25,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:25,905 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 318 transitions. [2022-10-16 15:00:25,905 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), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 15:00:25,906 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 318 transitions. [2022-10-16 15:00:25,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 15:00:25,916 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:25,916 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:00:25,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 15:00:26,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:26,126 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:26,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:26,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1998313584, now seen corresponding path program 1 times [2022-10-16 15:00:26,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:26,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415220118] [2022-10-16 15:00:26,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:26,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:26,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:26,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:26,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 15:00:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:26,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 15:00:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:26,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 15:00:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:26,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 15:00:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:26,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 15:00:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:26,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 15:00:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:26,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-16 15:00:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:26,359 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-16 15:00:26,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:26,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415220118] [2022-10-16 15:00:26,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415220118] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:26,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:00:26,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 15:00:26,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621473923] [2022-10-16 15:00:26,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:26,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 15:00:26,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:26,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 15:00:26,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:00:26,365 INFO L87 Difference]: Start difference. First operand 214 states and 318 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 15:00:26,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:26,928 INFO L93 Difference]: Finished difference Result 494 states and 751 transitions. [2022-10-16 15:00:26,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 15:00:26,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 90 [2022-10-16 15:00:26,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:26,932 INFO L225 Difference]: With dead ends: 494 [2022-10-16 15:00:26,933 INFO L226 Difference]: Without dead ends: 337 [2022-10-16 15:00:26,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 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 15:00:26,935 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 212 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:26,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 859 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 15:00:26,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-10-16 15:00:26,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 214. [2022-10-16 15:00:26,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 167 states have (on average 1.4850299401197604) internal successors, (248), 177 states have internal predecessors, (248), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-10-16 15:00:26,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 314 transitions. [2022-10-16 15:00:26,962 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 314 transitions. Word has length 90 [2022-10-16 15:00:26,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:26,963 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 314 transitions. [2022-10-16 15:00:26,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 15:00:26,963 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 314 transitions. [2022-10-16 15:00:26,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 15:00:26,966 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:26,967 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:00:26,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 15:00:26,967 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:26,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:26,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1658665203, now seen corresponding path program 1 times [2022-10-16 15:00:26,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:26,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39038015] [2022-10-16 15:00:26,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:26,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 15:00:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 15:00:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 15:00:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 15:00:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-16 15:00:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 15:00:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 15:00:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 15:00:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 15:00:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,301 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-10-16 15:00:27,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:27,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39038015] [2022-10-16 15:00:27,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39038015] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:27,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316851030] [2022-10-16 15:00:27,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:27,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:27,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:27,305 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 15:00:27,313 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 15:00:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:27,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:27,538 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-10-16 15:00:27,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:27,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316851030] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:27,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:27,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-16 15:00:27,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608554217] [2022-10-16 15:00:27,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:27,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:27,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:27,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:27,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:27,546 INFO L87 Difference]: Start difference. First operand 214 states and 314 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-10-16 15:00:27,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:27,617 INFO L93 Difference]: Finished difference Result 412 states and 610 transitions. [2022-10-16 15:00:27,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:27,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 138 [2022-10-16 15:00:27,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:27,620 INFO L225 Difference]: With dead ends: 412 [2022-10-16 15:00:27,620 INFO L226 Difference]: Without dead ends: 206 [2022-10-16 15:00:27,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:27,623 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 41 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:27,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 799 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:27,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-10-16 15:00:27,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2022-10-16 15:00:27,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 160 states have (on average 1.4875) internal successors, (238), 170 states have internal predecessors, (238), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-16 15:00:27,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 302 transitions. [2022-10-16 15:00:27,641 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 302 transitions. Word has length 138 [2022-10-16 15:00:27,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:27,642 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 302 transitions. [2022-10-16 15:00:27,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-10-16 15:00:27,643 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 302 transitions. [2022-10-16 15:00:27,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-10-16 15:00:27,645 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:27,645 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:00:27,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 15:00:27,859 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 15:00:27,860 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:27,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:27,861 INFO L85 PathProgramCache]: Analyzing trace with hash 230831027, now seen corresponding path program 1 times [2022-10-16 15:00:27,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:27,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802607362] [2022-10-16 15:00:27,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:27,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:27,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 15:00:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 15:00:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 15:00:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 15:00:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 15:00:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 15:00:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 15:00:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 15:00:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-16 15:00:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-16 15:00:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-10-16 15:00:28,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:28,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802607362] [2022-10-16 15:00:28,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802607362] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:28,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091932083] [2022-10-16 15:00:28,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:28,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:28,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:28,096 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 15:00:28,116 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 15:00:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:28,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:28,285 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-10-16 15:00:28,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:28,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091932083] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:28,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:28,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-16 15:00:28,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101441120] [2022-10-16 15:00:28,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:28,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:28,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:28,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:28,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:28,289 INFO L87 Difference]: Start difference. First operand 206 states and 302 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 15:00:28,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:28,386 INFO L93 Difference]: Finished difference Result 405 states and 609 transitions. [2022-10-16 15:00:28,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:28,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 141 [2022-10-16 15:00:28,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:28,389 INFO L225 Difference]: With dead ends: 405 [2022-10-16 15:00:28,389 INFO L226 Difference]: Without dead ends: 218 [2022-10-16 15:00:28,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:28,391 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 54 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:28,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 791 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:00:28,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-10-16 15:00:28,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2022-10-16 15:00:28,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 170 states have (on average 1.5) internal successors, (255), 180 states have internal predecessors, (255), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-10-16 15:00:28,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 321 transitions. [2022-10-16 15:00:28,411 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 321 transitions. Word has length 141 [2022-10-16 15:00:28,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:28,412 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 321 transitions. [2022-10-16 15:00:28,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 15:00:28,412 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 321 transitions. [2022-10-16 15:00:28,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-10-16 15:00:28,415 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:28,415 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:28,448 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 15:00:28,628 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 15:00:28,629 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:28,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:28,630 INFO L85 PathProgramCache]: Analyzing trace with hash 2071895007, now seen corresponding path program 1 times [2022-10-16 15:00:28,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:28,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051252872] [2022-10-16 15:00:28,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:28,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 15:00:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 15:00:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 15:00:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 15:00:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 15:00:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 15:00:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 15:00:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-16 15:00:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 15:00:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-16 15:00:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:28,846 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-10-16 15:00:28,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:28,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051252872] [2022-10-16 15:00:28,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051252872] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:28,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354288857] [2022-10-16 15:00:28,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:28,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:28,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:28,849 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 15:00:28,856 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 15:00:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:29,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 15:00:29,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:29,071 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 15:00:29,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 15:00:29,220 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 15:00:29,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354288857] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 15:00:29,220 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 15:00:29,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-10-16 15:00:29,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648980153] [2022-10-16 15:00:29,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 15:00:29,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 15:00:29,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:29,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 15:00:29,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-16 15:00:29,225 INFO L87 Difference]: Start difference. First operand 218 states and 321 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 9 states have internal predecessors, (129), 2 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2022-10-16 15:00:30,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:30,033 INFO L93 Difference]: Finished difference Result 489 states and 729 transitions. [2022-10-16 15:00:30,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 15:00:30,033 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 9 states have internal predecessors, (129), 2 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 142 [2022-10-16 15:00:30,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:30,040 INFO L225 Difference]: With dead ends: 489 [2022-10-16 15:00:30,040 INFO L226 Difference]: Without dead ends: 276 [2022-10-16 15:00:30,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 311 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2022-10-16 15:00:30,043 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 192 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:30,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1608 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 15:00:30,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-10-16 15:00:30,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 268. [2022-10-16 15:00:30,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 212 states have (on average 1.4528301886792452) internal successors, (308), 222 states have internal predecessors, (308), 41 states have call successors, (41), 7 states have call predecessors, (41), 7 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-10-16 15:00:30,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 390 transitions. [2022-10-16 15:00:30,096 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 390 transitions. Word has length 142 [2022-10-16 15:00:30,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:30,096 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 390 transitions. [2022-10-16 15:00:30,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 9 states have internal predecessors, (129), 2 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2022-10-16 15:00:30,097 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 390 transitions. [2022-10-16 15:00:30,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-10-16 15:00:30,101 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:30,101 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:30,141 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 15:00:30,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:30,316 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:30,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:30,318 INFO L85 PathProgramCache]: Analyzing trace with hash 166126151, now seen corresponding path program 1 times [2022-10-16 15:00:30,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:30,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534704253] [2022-10-16 15:00:30,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:30,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 15:00:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 15:00:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 15:00:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 15:00:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-16 15:00:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-16 15:00:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-10-16 15:00:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 15:00:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,560 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-10-16 15:00:30,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:30,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534704253] [2022-10-16 15:00:30,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534704253] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:30,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218871805] [2022-10-16 15:00:30,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:30,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:30,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:30,563 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 15:00:30,587 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 15:00:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:30,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:30,851 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-10-16 15:00:30,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:30,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218871805] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:30,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:30,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-16 15:00:30,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145445276] [2022-10-16 15:00:30,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:30,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:30,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:30,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:30,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:30,860 INFO L87 Difference]: Start difference. First operand 268 states and 390 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-10-16 15:00:30,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:30,984 INFO L93 Difference]: Finished difference Result 545 states and 806 transitions. [2022-10-16 15:00:30,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:30,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 175 [2022-10-16 15:00:30,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:30,991 INFO L225 Difference]: With dead ends: 545 [2022-10-16 15:00:30,991 INFO L226 Difference]: Without dead ends: 315 [2022-10-16 15:00:30,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:30,995 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 65 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:30,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 797 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:00:30,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-10-16 15:00:31,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2022-10-16 15:00:31,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 252 states have (on average 1.4444444444444444) internal successors, (364), 262 states have internal predecessors, (364), 47 states have call successors, (47), 8 states have call predecessors, (47), 8 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-10-16 15:00:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 458 transitions. [2022-10-16 15:00:31,070 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 458 transitions. Word has length 175 [2022-10-16 15:00:31,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:31,071 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 458 transitions. [2022-10-16 15:00:31,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-10-16 15:00:31,071 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 458 transitions. [2022-10-16 15:00:31,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-16 15:00:31,079 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:31,079 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:31,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 15:00:31,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:31,296 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:31,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:31,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1581959889, now seen corresponding path program 1 times [2022-10-16 15:00:31,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:31,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870630633] [2022-10-16 15:00:31,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:31,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 15:00:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 15:00:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-16 15:00:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-16 15:00:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-16 15:00:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-16 15:00:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-16 15:00:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-10-16 15:00:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,609 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-10-16 15:00:31,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:31,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870630633] [2022-10-16 15:00:31,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870630633] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:31,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137639230] [2022-10-16 15:00:31,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:31,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:31,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:31,613 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 15:00:31,646 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 15:00:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:31,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:31,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:31,908 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-10-16 15:00:31,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:31,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137639230] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:31,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:31,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-16 15:00:31,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962437986] [2022-10-16 15:00:31,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:31,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:31,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:31,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:31,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:31,918 INFO L87 Difference]: Start difference. First operand 315 states and 458 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:32,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:32,042 INFO L93 Difference]: Finished difference Result 595 states and 886 transitions. [2022-10-16 15:00:32,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:32,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 177 [2022-10-16 15:00:32,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:32,048 INFO L225 Difference]: With dead ends: 595 [2022-10-16 15:00:32,049 INFO L226 Difference]: Without dead ends: 325 [2022-10-16 15:00:32,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:32,051 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 48 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:32,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 784 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:00:32,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-10-16 15:00:32,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2022-10-16 15:00:32,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 260 states have (on average 1.45) internal successors, (377), 270 states have internal predecessors, (377), 48 states have call successors, (48), 9 states have call predecessors, (48), 9 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-10-16 15:00:32,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 473 transitions. [2022-10-16 15:00:32,116 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 473 transitions. Word has length 177 [2022-10-16 15:00:32,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:32,121 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 473 transitions. [2022-10-16 15:00:32,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:32,122 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 473 transitions. [2022-10-16 15:00:32,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-16 15:00:32,130 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:32,130 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:00:32,197 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 15:00:32,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:32,345 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:32,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:32,346 INFO L85 PathProgramCache]: Analyzing trace with hash 440315473, now seen corresponding path program 1 times [2022-10-16 15:00:32,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:32,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565503394] [2022-10-16 15:00:32,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:32,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 15:00:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-16 15:00:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-10-16 15:00:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 15:00:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 15:00:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-16 15:00:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,680 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-10-16 15:00:32,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:32,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565503394] [2022-10-16 15:00:32,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565503394] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:32,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347809063] [2022-10-16 15:00:32,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:32,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:32,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:32,683 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 15:00:32,706 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 15:00:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:32,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:32,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:32,899 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-10-16 15:00:32,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:32,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347809063] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:32,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:32,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-16 15:00:32,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976106457] [2022-10-16 15:00:32,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:32,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:32,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:32,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:32,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:32,903 INFO L87 Difference]: Start difference. First operand 325 states and 473 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-10-16 15:00:33,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:33,004 INFO L93 Difference]: Finished difference Result 679 states and 996 transitions. [2022-10-16 15:00:33,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:33,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 178 [2022-10-16 15:00:33,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:33,009 INFO L225 Difference]: With dead ends: 679 [2022-10-16 15:00:33,009 INFO L226 Difference]: Without dead ends: 354 [2022-10-16 15:00:33,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:33,013 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 42 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:33,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 819 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:33,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-16 15:00:33,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2022-10-16 15:00:33,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 288 states have (on average 1.4201388888888888) internal successors, (409), 298 states have internal predecessors, (409), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-10-16 15:00:33,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 505 transitions. [2022-10-16 15:00:33,052 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 505 transitions. Word has length 178 [2022-10-16 15:00:33,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:33,053 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 505 transitions. [2022-10-16 15:00:33,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-10-16 15:00:33,053 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 505 transitions. [2022-10-16 15:00:33,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-16 15:00:33,059 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:33,060 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:00:33,098 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 15:00:33,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:33,275 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:33,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:33,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1339666283, now seen corresponding path program 2 times [2022-10-16 15:00:33,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:33,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303341506] [2022-10-16 15:00:33,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:33,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-16 15:00:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-10-16 15:00:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 15:00:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 15:00:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-16 15:00:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:33,521 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-10-16 15:00:33,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:33,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303341506] [2022-10-16 15:00:33,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303341506] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:33,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496829654] [2022-10-16 15:00:33,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 15:00:33,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:33,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:33,526 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 15:00:33,534 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 15:00:33,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 15:00:33,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 15:00:33,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:33,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-10-16 15:00:33,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:33,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496829654] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:33,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:33,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-16 15:00:33,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121925121] [2022-10-16 15:00:33,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:33,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:33,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:33,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:33,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:33,800 INFO L87 Difference]: Start difference. First operand 354 states and 505 transitions. Second operand has 4 states, 3 states have (on average 29.0) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:33,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:33,852 INFO L93 Difference]: Finished difference Result 475 states and 693 transitions. [2022-10-16 15:00:33,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:33,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.0) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 178 [2022-10-16 15:00:33,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:33,857 INFO L225 Difference]: With dead ends: 475 [2022-10-16 15:00:33,858 INFO L226 Difference]: Without dead ends: 474 [2022-10-16 15:00:33,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:33,862 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 117 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:33,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 896 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:33,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-10-16 15:00:33,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 466. [2022-10-16 15:00:33,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 379 states have (on average 1.4564643799472297) internal successors, (552), 391 states have internal predecessors, (552), 69 states have call successors, (69), 10 states have call predecessors, (69), 10 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-10-16 15:00:33,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 690 transitions. [2022-10-16 15:00:33,903 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 690 transitions. Word has length 178 [2022-10-16 15:00:33,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:33,905 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 690 transitions. [2022-10-16 15:00:33,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.0) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:33,905 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 690 transitions. [2022-10-16 15:00:33,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-10-16 15:00:33,909 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:33,910 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:00:33,953 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 15:00:34,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 15:00:34,126 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:34,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:34,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1420018704, now seen corresponding path program 1 times [2022-10-16 15:00:34,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:34,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922736506] [2022-10-16 15:00:34,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:34,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-16 15:00:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-10-16 15:00:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 15:00:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 15:00:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-16 15:00:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,389 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-10-16 15:00:34,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:34,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922736506] [2022-10-16 15:00:34,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922736506] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:34,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607631180] [2022-10-16 15:00:34,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:34,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:34,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:34,391 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 15:00:34,410 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 15:00:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:34,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:34,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:34,583 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-10-16 15:00:34,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:34,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607631180] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:34,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:34,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-16 15:00:34,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119743674] [2022-10-16 15:00:34,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:34,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:34,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:34,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:34,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:34,587 INFO L87 Difference]: Start difference. First operand 466 states and 690 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:34,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:34,655 INFO L93 Difference]: Finished difference Result 748 states and 1138 transitions. [2022-10-16 15:00:34,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:34,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 179 [2022-10-16 15:00:34,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:34,661 INFO L225 Difference]: With dead ends: 748 [2022-10-16 15:00:34,661 INFO L226 Difference]: Without dead ends: 473 [2022-10-16 15:00:34,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:34,664 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 20 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:34,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 835 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:34,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-10-16 15:00:34,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2022-10-16 15:00:34,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 384 states have (on average 1.4583333333333333) internal successors, (560), 397 states have internal predecessors, (560), 70 states have call successors, (70), 11 states have call predecessors, (70), 11 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-10-16 15:00:34,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 700 transitions. [2022-10-16 15:00:34,721 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 700 transitions. Word has length 179 [2022-10-16 15:00:34,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:34,722 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 700 transitions. [2022-10-16 15:00:34,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:34,722 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 700 transitions. [2022-10-16 15:00:34,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-10-16 15:00:34,726 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:34,727 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:34,769 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 15:00:34,942 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,SelfDestructingSolverStorable12 [2022-10-16 15:00:34,942 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:34,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:34,943 INFO L85 PathProgramCache]: Analyzing trace with hash 541752060, now seen corresponding path program 1 times [2022-10-16 15:00:34,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:34,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307709897] [2022-10-16 15:00:34,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:34,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 15:00:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-10-16 15:00:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-16 15:00:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-16 15:00:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-10-16 15:00:35,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:35,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307709897] [2022-10-16 15:00:35,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307709897] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:35,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634166840] [2022-10-16 15:00:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:35,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:35,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:35,177 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 15:00:35,196 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 15:00:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:35,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:35,376 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-10-16 15:00:35,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:35,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634166840] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:35,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:35,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-16 15:00:35,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177678758] [2022-10-16 15:00:35,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:35,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:35,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:35,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:35,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:35,381 INFO L87 Difference]: Start difference. First operand 473 states and 700 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:35,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:35,448 INFO L93 Difference]: Finished difference Result 751 states and 1139 transitions. [2022-10-16 15:00:35,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:35,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 181 [2022-10-16 15:00:35,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:35,452 INFO L225 Difference]: With dead ends: 751 [2022-10-16 15:00:35,453 INFO L226 Difference]: Without dead ends: 480 [2022-10-16 15:00:35,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:35,455 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 18 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:35,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 835 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:35,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-10-16 15:00:35,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2022-10-16 15:00:35,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 389 states have (on average 1.4601542416452442) internal successors, (568), 403 states have internal predecessors, (568), 71 states have call successors, (71), 12 states have call predecessors, (71), 12 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-10-16 15:00:35,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 710 transitions. [2022-10-16 15:00:35,491 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 710 transitions. Word has length 181 [2022-10-16 15:00:35,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:35,492 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 710 transitions. [2022-10-16 15:00:35,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:35,493 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 710 transitions. [2022-10-16 15:00:35,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-16 15:00:35,496 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:35,497 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:00:35,540 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 15:00:35,711 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,SelfDestructingSolverStorable13 [2022-10-16 15:00:35,712 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:35,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:35,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1539830209, now seen corresponding path program 1 times [2022-10-16 15:00:35,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:35,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913249890] [2022-10-16 15:00:35,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:35,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-16 15:00:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-16 15:00:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 15:00:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:35,941 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-10-16 15:00:35,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:35,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913249890] [2022-10-16 15:00:35,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913249890] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:35,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744563528] [2022-10-16 15:00:35,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:35,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:35,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:35,944 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 15:00:35,949 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 15:00:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:36,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:36,141 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-10-16 15:00:36,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:36,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744563528] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:36,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:36,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-16 15:00:36,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274891256] [2022-10-16 15:00:36,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:36,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:36,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:36,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:36,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:36,144 INFO L87 Difference]: Start difference. First operand 480 states and 710 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:36,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:36,248 INFO L93 Difference]: Finished difference Result 766 states and 1169 transitions. [2022-10-16 15:00:36,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:36,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 182 [2022-10-16 15:00:36,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:36,254 INFO L225 Difference]: With dead ends: 766 [2022-10-16 15:00:36,254 INFO L226 Difference]: Without dead ends: 516 [2022-10-16 15:00:36,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:36,257 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 57 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:36,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 780 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:00:36,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-10-16 15:00:36,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2022-10-16 15:00:36,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 419 states have (on average 1.477326968973747) internal successors, (619), 433 states have internal predecessors, (619), 74 states have call successors, (74), 15 states have call predecessors, (74), 15 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-10-16 15:00:36,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 767 transitions. [2022-10-16 15:00:36,298 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 767 transitions. Word has length 182 [2022-10-16 15:00:36,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:36,298 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 767 transitions. [2022-10-16 15:00:36,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:36,299 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 767 transitions. [2022-10-16 15:00:36,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-10-16 15:00:36,303 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:36,304 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:36,351 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 15:00:36,518 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,SelfDestructingSolverStorable14 [2022-10-16 15:00:36,519 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:36,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:36,519 INFO L85 PathProgramCache]: Analyzing trace with hash 271294594, now seen corresponding path program 1 times [2022-10-16 15:00:36,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:36,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005970116] [2022-10-16 15:00:36,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:36,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:36,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-10-16 15:00:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-10-16 15:00:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,733 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-10-16 15:00:36,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:36,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005970116] [2022-10-16 15:00:36,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005970116] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:36,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966389271] [2022-10-16 15:00:36,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:36,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:36,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:36,736 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 15:00:36,753 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 15:00:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:36,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:36,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:36,931 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-10-16 15:00:36,932 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:36,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966389271] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:36,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:36,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-10-16 15:00:36,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605647625] [2022-10-16 15:00:36,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:36,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:36,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:36,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:36,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:36,934 INFO L87 Difference]: Start difference. First operand 516 states and 767 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:37,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:37,039 INFO L93 Difference]: Finished difference Result 751 states and 1121 transitions. [2022-10-16 15:00:37,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:37,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 183 [2022-10-16 15:00:37,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:37,045 INFO L225 Difference]: With dead ends: 751 [2022-10-16 15:00:37,045 INFO L226 Difference]: Without dead ends: 524 [2022-10-16 15:00:37,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:37,048 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 21 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:37,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 803 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:37,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-10-16 15:00:37,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2022-10-16 15:00:37,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 425 states have (on average 1.4776470588235293) internal successors, (628), 439 states have internal predecessors, (628), 75 states have call successors, (75), 16 states have call predecessors, (75), 16 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-10-16 15:00:37,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 778 transitions. [2022-10-16 15:00:37,087 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 778 transitions. Word has length 183 [2022-10-16 15:00:37,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:37,088 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 778 transitions. [2022-10-16 15:00:37,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:37,088 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 778 transitions. [2022-10-16 15:00:37,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-10-16 15:00:37,093 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:37,093 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:37,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 15:00:37,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 15:00:37,309 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:37,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:37,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1317477569, now seen corresponding path program 1 times [2022-10-16 15:00:37,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:37,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708944396] [2022-10-16 15:00:37,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:37,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 15:00:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-16 15:00:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,520 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-10-16 15:00:37,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:37,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708944396] [2022-10-16 15:00:37,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708944396] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:37,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921058376] [2022-10-16 15:00:37,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:37,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:37,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:37,522 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 15:00:37,543 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 15:00:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:37,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:37,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:37,753 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-10-16 15:00:37,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:37,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921058376] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:37,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:37,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-16 15:00:37,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048151386] [2022-10-16 15:00:37,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:37,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:37,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:37,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:37,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:37,756 INFO L87 Difference]: Start difference. First operand 524 states and 778 transitions. Second operand has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:37,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:37,808 INFO L93 Difference]: Finished difference Result 524 states and 778 transitions. [2022-10-16 15:00:37,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 15:00:37,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 184 [2022-10-16 15:00:37,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:37,818 INFO L225 Difference]: With dead ends: 524 [2022-10-16 15:00:37,818 INFO L226 Difference]: Without dead ends: 523 [2022-10-16 15:00:37,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:37,821 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 116 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:37,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 689 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:37,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-10-16 15:00:37,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2022-10-16 15:00:37,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 425 states have (on average 1.4752941176470589) internal successors, (627), 438 states have internal predecessors, (627), 75 states have call successors, (75), 16 states have call predecessors, (75), 16 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-10-16 15:00:37,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 777 transitions. [2022-10-16 15:00:37,862 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 777 transitions. Word has length 184 [2022-10-16 15:00:37,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:37,862 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 777 transitions. [2022-10-16 15:00:37,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:37,863 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 777 transitions. [2022-10-16 15:00:37,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-10-16 15:00:37,867 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:37,868 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:37,908 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 15:00:38,082 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,SelfDestructingSolverStorable16 [2022-10-16 15:00:38,082 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:38,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:38,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1333845018, now seen corresponding path program 1 times [2022-10-16 15:00:38,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:38,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261782939] [2022-10-16 15:00:38,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:38,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 15:00:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 15:00:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,375 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-10-16 15:00:38,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:38,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261782939] [2022-10-16 15:00:38,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261782939] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:38,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435919881] [2022-10-16 15:00:38,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:38,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:38,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:38,378 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 15:00:38,398 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 15:00:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:38,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:38,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:38,573 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-10-16 15:00:38,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:38,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435919881] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:38,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:38,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-16 15:00:38,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774931228] [2022-10-16 15:00:38,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:38,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:38,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:38,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:38,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:38,578 INFO L87 Difference]: Start difference. First operand 523 states and 777 transitions. Second operand has 4 states, 3 states have (on average 31.0) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:38,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:38,647 INFO L93 Difference]: Finished difference Result 848 states and 1273 transitions. [2022-10-16 15:00:38,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 15:00:38,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.0) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 187 [2022-10-16 15:00:38,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:38,655 INFO L225 Difference]: With dead ends: 848 [2022-10-16 15:00:38,655 INFO L226 Difference]: Without dead ends: 613 [2022-10-16 15:00:38,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:38,661 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 95 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:38,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1006 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:38,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-10-16 15:00:38,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 544. [2022-10-16 15:00:38,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 443 states have (on average 1.4740406320541761) internal successors, (653), 455 states have internal predecessors, (653), 79 states have call successors, (79), 16 states have call predecessors, (79), 16 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-10-16 15:00:38,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 811 transitions. [2022-10-16 15:00:38,711 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 811 transitions. Word has length 187 [2022-10-16 15:00:38,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:38,714 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 811 transitions. [2022-10-16 15:00:38,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.0) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:38,715 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 811 transitions. [2022-10-16 15:00:38,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-10-16 15:00:38,719 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:38,719 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:38,766 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 15:00:38,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:38,932 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:38,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:38,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1600477029, now seen corresponding path program 1 times [2022-10-16 15:00:38,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:38,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835822027] [2022-10-16 15:00:38,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:38,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 15:00:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 15:00:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-10-16 15:00:39,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:39,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835822027] [2022-10-16 15:00:39,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835822027] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:39,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044813258] [2022-10-16 15:00:39,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:39,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:39,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:39,172 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 15:00:39,190 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 15:00:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:39,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:39,372 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-10-16 15:00:39,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:39,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044813258] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:39,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:39,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-16 15:00:39,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410055724] [2022-10-16 15:00:39,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:39,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:39,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:39,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:39,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:39,377 INFO L87 Difference]: Start difference. First operand 544 states and 811 transitions. Second operand has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:39,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:39,466 INFO L93 Difference]: Finished difference Result 679 states and 1028 transitions. [2022-10-16 15:00:39,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 15:00:39,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 188 [2022-10-16 15:00:39,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:39,473 INFO L225 Difference]: With dead ends: 679 [2022-10-16 15:00:39,473 INFO L226 Difference]: Without dead ends: 678 [2022-10-16 15:00:39,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:39,475 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 122 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:39,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1095 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:39,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-10-16 15:00:39,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 543. [2022-10-16 15:00:39,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 443 states have (on average 1.4695259593679457) internal successors, (651), 454 states have internal predecessors, (651), 79 states have call successors, (79), 16 states have call predecessors, (79), 16 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-10-16 15:00:39,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 809 transitions. [2022-10-16 15:00:39,521 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 809 transitions. Word has length 188 [2022-10-16 15:00:39,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:39,522 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 809 transitions. [2022-10-16 15:00:39,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 15:00:39,524 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 809 transitions. [2022-10-16 15:00:39,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-10-16 15:00:39,529 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:39,529 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:39,567 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 15:00:39,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:39,744 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:39,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:39,745 INFO L85 PathProgramCache]: Analyzing trace with hash -564714616, now seen corresponding path program 1 times [2022-10-16 15:00:39,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:39,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134305606] [2022-10-16 15:00:39,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:39,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 15:00:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 15:00:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 15:00:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:39,984 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-10-16 15:00:39,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:39,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134305606] [2022-10-16 15:00:39,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134305606] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:39,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962566144] [2022-10-16 15:00:39,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:39,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:39,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:39,986 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 15:00:40,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 15:00:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:40,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:40,180 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-10-16 15:00:40,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:40,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962566144] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:40,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:40,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-16 15:00:40,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091518366] [2022-10-16 15:00:40,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:40,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:40,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:40,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:40,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:40,185 INFO L87 Difference]: Start difference. First operand 543 states and 809 transitions. Second operand has 4 states, 3 states have (on average 31.666666666666668) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 15:00:40,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:40,253 INFO L93 Difference]: Finished difference Result 612 states and 912 transitions. [2022-10-16 15:00:40,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:40,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.666666666666668) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 195 [2022-10-16 15:00:40,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:40,259 INFO L225 Difference]: With dead ends: 612 [2022-10-16 15:00:40,259 INFO L226 Difference]: Without dead ends: 611 [2022-10-16 15:00:40,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:40,261 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 91 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:40,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1033 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:40,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-10-16 15:00:40,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 545. [2022-10-16 15:00:40,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 445 states have (on average 1.4674157303370787) internal successors, (653), 456 states have internal predecessors, (653), 79 states have call successors, (79), 16 states have call predecessors, (79), 16 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-10-16 15:00:40,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 811 transitions. [2022-10-16 15:00:40,308 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 811 transitions. Word has length 195 [2022-10-16 15:00:40,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:40,309 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 811 transitions. [2022-10-16 15:00:40,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.666666666666668) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 15:00:40,309 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 811 transitions. [2022-10-16 15:00:40,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-10-16 15:00:40,314 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:40,314 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:40,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 15:00:40,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:40,528 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:40,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:40,529 INFO L85 PathProgramCache]: Analyzing trace with hash -326283527, now seen corresponding path program 1 times [2022-10-16 15:00:40,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:40,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641783507] [2022-10-16 15:00:40,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:40,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 15:00:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 15:00:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 15:00:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,763 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-10-16 15:00:40,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:40,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641783507] [2022-10-16 15:00:40,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641783507] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:40,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467190340] [2022-10-16 15:00:40,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:40,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:40,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:40,766 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 15:00:40,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 15:00:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:40,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:40,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:40,988 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-10-16 15:00:40,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:40,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467190340] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:40,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:40,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-16 15:00:40,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937897986] [2022-10-16 15:00:40,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:40,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:40,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:40,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:40,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:40,994 INFO L87 Difference]: Start difference. First operand 545 states and 811 transitions. Second operand has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 15:00:41,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:41,126 INFO L93 Difference]: Finished difference Result 683 states and 1032 transitions. [2022-10-16 15:00:41,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:41,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 196 [2022-10-16 15:00:41,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:41,134 INFO L225 Difference]: With dead ends: 683 [2022-10-16 15:00:41,134 INFO L226 Difference]: Without dead ends: 682 [2022-10-16 15:00:41,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:41,137 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 116 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:41,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1105 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:41,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-10-16 15:00:41,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 547. [2022-10-16 15:00:41,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 447 states have (on average 1.465324384787472) internal successors, (655), 458 states have internal predecessors, (655), 79 states have call successors, (79), 16 states have call predecessors, (79), 16 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-10-16 15:00:41,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 813 transitions. [2022-10-16 15:00:41,229 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 813 transitions. Word has length 196 [2022-10-16 15:00:41,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:41,229 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 813 transitions. [2022-10-16 15:00:41,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 15:00:41,233 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 813 transitions. [2022-10-16 15:00:41,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-10-16 15:00:41,238 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:41,238 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:41,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 15:00:41,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:41,439 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:41,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:41,440 INFO L85 PathProgramCache]: Analyzing trace with hash -582152468, now seen corresponding path program 1 times [2022-10-16 15:00:41,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:41,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341983432] [2022-10-16 15:00:41,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:41,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 15:00:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 15:00:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-16 15:00:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,648 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-10-16 15:00:41,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:41,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341983432] [2022-10-16 15:00:41,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341983432] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:41,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971716648] [2022-10-16 15:00:41,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:41,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:41,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:41,650 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 15:00:41,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 15:00:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:41,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 15:00:41,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-10-16 15:00:41,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:41,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971716648] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:41,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:41,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-10-16 15:00:41,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304097839] [2022-10-16 15:00:41,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:41,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 15:00:41,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:41,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 15:00:41,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 15:00:41,879 INFO L87 Difference]: Start difference. First operand 547 states and 813 transitions. Second operand has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-10-16 15:00:42,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:42,051 INFO L93 Difference]: Finished difference Result 990 states and 1496 transitions. [2022-10-16 15:00:42,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 15:00:42,052 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 197 [2022-10-16 15:00:42,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:42,060 INFO L225 Difference]: With dead ends: 990 [2022-10-16 15:00:42,060 INFO L226 Difference]: Without dead ends: 744 [2022-10-16 15:00:42,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-10-16 15:00:42,063 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 207 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:42,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 2131 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:00:42,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-10-16 15:00:42,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 558. [2022-10-16 15:00:42,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 457 states have (on average 1.4682713347921226) internal successors, (671), 467 states have internal predecessors, (671), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-16 15:00:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 833 transitions. [2022-10-16 15:00:42,140 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 833 transitions. Word has length 197 [2022-10-16 15:00:42,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:42,140 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 833 transitions. [2022-10-16 15:00:42,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-10-16 15:00:42,141 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 833 transitions. [2022-10-16 15:00:42,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-10-16 15:00:42,146 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:42,146 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:42,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 15:00:42,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:42,360 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:42,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:42,361 INFO L85 PathProgramCache]: Analyzing trace with hash -866856939, now seen corresponding path program 1 times [2022-10-16 15:00:42,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:42,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090881927] [2022-10-16 15:00:42,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:42,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 15:00:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 15:00:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-16 15:00:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,563 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-10-16 15:00:42,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:42,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090881927] [2022-10-16 15:00:42,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090881927] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:42,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154628899] [2022-10-16 15:00:42,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:42,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:42,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:42,566 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 15:00:42,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 15:00:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:42,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 15:00:42,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:42,776 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-10-16 15:00:42,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:42,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154628899] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:42,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:42,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-16 15:00:42,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513108467] [2022-10-16 15:00:42,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:42,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:42,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:42,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:42,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:42,779 INFO L87 Difference]: Start difference. First operand 558 states and 833 transitions. Second operand has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 15:00:42,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:42,854 INFO L93 Difference]: Finished difference Result 671 states and 1012 transitions. [2022-10-16 15:00:42,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 15:00:42,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 198 [2022-10-16 15:00:42,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:42,861 INFO L225 Difference]: With dead ends: 671 [2022-10-16 15:00:42,861 INFO L226 Difference]: Without dead ends: 670 [2022-10-16 15:00:42,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:42,863 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 120 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:42,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1077 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:42,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-10-16 15:00:42,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 553. [2022-10-16 15:00:42,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 453 states have (on average 1.467991169977925) internal successors, (665), 462 states have internal predecessors, (665), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-16 15:00:42,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 827 transitions. [2022-10-16 15:00:42,912 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 827 transitions. Word has length 198 [2022-10-16 15:00:42,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:42,912 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 827 transitions. [2022-10-16 15:00:42,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 15:00:42,913 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 827 transitions. [2022-10-16 15:00:42,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-10-16 15:00:42,918 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:42,918 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:42,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 15:00:43,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:43,133 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:43,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:43,134 INFO L85 PathProgramCache]: Analyzing trace with hash 481484342, now seen corresponding path program 1 times [2022-10-16 15:00:43,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:43,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330026973] [2022-10-16 15:00:43,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:43,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 15:00:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 15:00:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 15:00:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 15:00:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,335 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-16 15:00:43,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:43,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330026973] [2022-10-16 15:00:43,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330026973] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:43,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066568982] [2022-10-16 15:00:43,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:43,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:43,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:43,337 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 15:00:43,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 15:00:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:43,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:43,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:43,587 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-10-16 15:00:43,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:43,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066568982] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:43,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:43,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-16 15:00:43,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652589267] [2022-10-16 15:00:43,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:43,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:43,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:43,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:43,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:43,590 INFO L87 Difference]: Start difference. First operand 553 states and 827 transitions. Second operand has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-16 15:00:43,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:43,664 INFO L93 Difference]: Finished difference Result 622 states and 928 transitions. [2022-10-16 15:00:43,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:43,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 203 [2022-10-16 15:00:43,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:43,671 INFO L225 Difference]: With dead ends: 622 [2022-10-16 15:00:43,671 INFO L226 Difference]: Without dead ends: 621 [2022-10-16 15:00:43,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:43,673 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 86 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:43,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1034 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:43,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2022-10-16 15:00:43,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 555. [2022-10-16 15:00:43,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 455 states have (on average 1.4659340659340658) internal successors, (667), 464 states have internal predecessors, (667), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-16 15:00:43,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 829 transitions. [2022-10-16 15:00:43,720 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 829 transitions. Word has length 203 [2022-10-16 15:00:43,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:43,721 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 829 transitions. [2022-10-16 15:00:43,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-16 15:00:43,721 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 829 transitions. [2022-10-16 15:00:43,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-10-16 15:00:43,724 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:43,725 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:43,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 15:00:43,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-10-16 15:00:43,939 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:43,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:43,939 INFO L85 PathProgramCache]: Analyzing trace with hash 2041113111, now seen corresponding path program 1 times [2022-10-16 15:00:43,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:43,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667922619] [2022-10-16 15:00:43,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:43,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 15:00:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 15:00:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 15:00:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 15:00:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,112 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-16 15:00:44,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:44,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667922619] [2022-10-16 15:00:44,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667922619] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:44,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709722673] [2022-10-16 15:00:44,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:44,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:44,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:44,114 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 15:00:44,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 15:00:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 15:00:44,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:44,325 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-10-16 15:00:44,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:44,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709722673] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:44,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:44,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-16 15:00:44,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088222706] [2022-10-16 15:00:44,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:44,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:44,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:44,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:44,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:44,329 INFO L87 Difference]: Start difference. First operand 555 states and 829 transitions. Second operand has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-16 15:00:44,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:44,416 INFO L93 Difference]: Finished difference Result 687 states and 1038 transitions. [2022-10-16 15:00:44,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:00:44,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 204 [2022-10-16 15:00:44,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:44,423 INFO L225 Difference]: With dead ends: 687 [2022-10-16 15:00:44,423 INFO L226 Difference]: Without dead ends: 686 [2022-10-16 15:00:44,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:44,427 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 112 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:44,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 1135 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:44,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2022-10-16 15:00:44,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 557. [2022-10-16 15:00:44,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 457 states have (on average 1.463894967177243) internal successors, (669), 466 states have internal predecessors, (669), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-16 15:00:44,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 831 transitions. [2022-10-16 15:00:44,473 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 831 transitions. Word has length 204 [2022-10-16 15:00:44,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:44,474 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 831 transitions. [2022-10-16 15:00:44,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-16 15:00:44,475 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 831 transitions. [2022-10-16 15:00:44,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-10-16 15:00:44,478 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:44,478 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:44,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 15:00:44,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-10-16 15:00:44,694 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:44,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:44,694 INFO L85 PathProgramCache]: Analyzing trace with hash 323560858, now seen corresponding path program 1 times [2022-10-16 15:00:44,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:44,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046163057] [2022-10-16 15:00:44,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:44,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 15:00:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 15:00:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-16 15:00:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 15:00:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:44,891 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-16 15:00:44,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:44,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046163057] [2022-10-16 15:00:44,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046163057] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:44,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67218718] [2022-10-16 15:00:44,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:44,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:44,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:44,895 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 15:00:44,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 15:00:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 15:00:45,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:45,118 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-10-16 15:00:45,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:45,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67218718] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:45,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:45,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-10-16 15:00:45,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604696239] [2022-10-16 15:00:45,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:45,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 15:00:45,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:45,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 15:00:45,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 15:00:45,121 INFO L87 Difference]: Start difference. First operand 557 states and 831 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-10-16 15:00:45,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:45,260 INFO L93 Difference]: Finished difference Result 741 states and 1115 transitions. [2022-10-16 15:00:45,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 15:00:45,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 205 [2022-10-16 15:00:45,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:45,267 INFO L225 Difference]: With dead ends: 741 [2022-10-16 15:00:45,267 INFO L226 Difference]: Without dead ends: 740 [2022-10-16 15:00:45,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-10-16 15:00:45,268 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 201 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2057 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:45,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 2057 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:00:45,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2022-10-16 15:00:45,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 559. [2022-10-16 15:00:45,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 459 states have (on average 1.4618736383442266) internal successors, (671), 468 states have internal predecessors, (671), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-16 15:00:45,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 833 transitions. [2022-10-16 15:00:45,313 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 833 transitions. Word has length 205 [2022-10-16 15:00:45,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:45,314 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 833 transitions. [2022-10-16 15:00:45,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-10-16 15:00:45,314 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 833 transitions. [2022-10-16 15:00:45,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-10-16 15:00:45,317 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:45,318 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:45,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-10-16 15:00:45,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 15:00:45,532 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:45,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:45,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1551280026, now seen corresponding path program 1 times [2022-10-16 15:00:45,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:45,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531599418] [2022-10-16 15:00:45,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:45,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 15:00:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 15:00:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 15:00:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 15:00:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,723 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-16 15:00:45,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:45,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531599418] [2022-10-16 15:00:45,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531599418] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:45,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972856823] [2022-10-16 15:00:45,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:45,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:45,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:45,725 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 15:00:45,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 15:00:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:45,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 15:00:45,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:45,942 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-10-16 15:00:45,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:45,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972856823] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:45,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:45,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-10-16 15:00:45,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866270392] [2022-10-16 15:00:45,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:45,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 15:00:45,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:45,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 15:00:45,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 15:00:45,945 INFO L87 Difference]: Start difference. First operand 559 states and 833 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-10-16 15:00:46,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:46,116 INFO L93 Difference]: Finished difference Result 1007 states and 1524 transitions. [2022-10-16 15:00:46,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 15:00:46,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 205 [2022-10-16 15:00:46,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:46,123 INFO L225 Difference]: With dead ends: 1007 [2022-10-16 15:00:46,123 INFO L226 Difference]: Without dead ends: 756 [2022-10-16 15:00:46,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-10-16 15:00:46,127 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 264 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:46,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 1694 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:00:46,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-10-16 15:00:46,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 563. [2022-10-16 15:00:46,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 463 states have (on average 1.4578833693304536) internal successors, (675), 472 states have internal predecessors, (675), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-16 15:00:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 837 transitions. [2022-10-16 15:00:46,176 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 837 transitions. Word has length 205 [2022-10-16 15:00:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:46,177 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 837 transitions. [2022-10-16 15:00:46,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-10-16 15:00:46,177 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 837 transitions. [2022-10-16 15:00:46,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-10-16 15:00:46,180 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:46,181 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:46,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-16 15:00:46,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:46,396 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:46,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:46,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1440452403, now seen corresponding path program 1 times [2022-10-16 15:00:46,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:46,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655830991] [2022-10-16 15:00:46,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:46,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 15:00:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 15:00:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-16 15:00:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-16 15:00:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,600 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-16 15:00:46,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:46,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655830991] [2022-10-16 15:00:46,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655830991] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:46,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290279376] [2022-10-16 15:00:46,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:46,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:46,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:46,602 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 15:00:46,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 15:00:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:46,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 15:00:46,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:46,814 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-10-16 15:00:46,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:46,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290279376] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:46,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:46,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-16 15:00:46,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78058166] [2022-10-16 15:00:46,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:46,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:00:46,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:46,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:00:46,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:00:46,817 INFO L87 Difference]: Start difference. First operand 563 states and 837 transitions. Second operand has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-16 15:00:46,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:46,894 INFO L93 Difference]: Finished difference Result 676 states and 1016 transitions. [2022-10-16 15:00:46,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 15:00:46,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 206 [2022-10-16 15:00:46,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:46,900 INFO L225 Difference]: With dead ends: 676 [2022-10-16 15:00:46,900 INFO L226 Difference]: Without dead ends: 675 [2022-10-16 15:00:46,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:00:46,901 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 118 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:46,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1073 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:00:46,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-10-16 15:00:46,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 558. [2022-10-16 15:00:46,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 459 states have (on average 1.457516339869281) internal successors, (669), 467 states have internal predecessors, (669), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-16 15:00:46,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 831 transitions. [2022-10-16 15:00:46,947 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 831 transitions. Word has length 206 [2022-10-16 15:00:46,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:46,948 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 831 transitions. [2022-10-16 15:00:46,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-16 15:00:46,949 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 831 transitions. [2022-10-16 15:00:46,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-10-16 15:00:46,952 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:46,952 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:46,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 15:00:47,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 15:00:47,168 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:47,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:47,168 INFO L85 PathProgramCache]: Analyzing trace with hash 110667262, now seen corresponding path program 1 times [2022-10-16 15:00:47,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:47,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923632355] [2022-10-16 15:00:47,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:47,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 15:00:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-16 15:00:47,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-16 15:00:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-16 15:00:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,378 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-16 15:00:47,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:47,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923632355] [2022-10-16 15:00:47,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923632355] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:47,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433258754] [2022-10-16 15:00:47,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:47,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:47,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:47,380 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 15:00:47,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 15:00:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:47,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 15:00:47,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:47,613 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-10-16 15:00:47,613 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 15:00:47,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433258754] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:00:47,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 15:00:47,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2022-10-16 15:00:47,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227069630] [2022-10-16 15:00:47,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:00:47,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 15:00:47,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:47,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 15:00:47,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-16 15:00:47,616 INFO L87 Difference]: Start difference. First operand 558 states and 831 transitions. Second operand has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-10-16 15:00:47,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:47,847 INFO L93 Difference]: Finished difference Result 877 states and 1334 transitions. [2022-10-16 15:00:47,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 15:00:47,848 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 207 [2022-10-16 15:00:47,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:47,856 INFO L225 Difference]: With dead ends: 877 [2022-10-16 15:00:47,856 INFO L226 Difference]: Without dead ends: 876 [2022-10-16 15:00:47,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-10-16 15:00:47,859 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 388 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:47,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 2813 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:00:47,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-10-16 15:00:47,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 555. [2022-10-16 15:00:47,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 457 states have (on average 1.4551422319474836) internal successors, (665), 464 states have internal predecessors, (665), 81 states have call successors, (81), 16 states have call predecessors, (81), 16 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-10-16 15:00:47,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 827 transitions. [2022-10-16 15:00:47,911 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 827 transitions. Word has length 207 [2022-10-16 15:00:47,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:47,912 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 827 transitions. [2022-10-16 15:00:47,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-10-16 15:00:47,912 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 827 transitions. [2022-10-16 15:00:47,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-10-16 15:00:47,917 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:47,917 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:00:47,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-10-16 15:00:48,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 15:00:48,132 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:00:48,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:48,133 INFO L85 PathProgramCache]: Analyzing trace with hash 932217782, now seen corresponding path program 1 times [2022-10-16 15:00:48,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:48,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257310463] [2022-10-16 15:00:48,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:48,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:00:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:00:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:00:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:00:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:00:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:00:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 15:00:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:00:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 15:00:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:00:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 15:00:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 15:00:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 15:00:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-16 15:00:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 15:00:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 15:00:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-16 15:00:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 15:00:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-16 15:00:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-10-16 15:00:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-10-16 15:00:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-10-16 15:00:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-10-16 15:00:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-10-16 15:00:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,369 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-10-16 15:00:48,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:48,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257310463] [2022-10-16 15:00:48,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257310463] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:48,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948345745] [2022-10-16 15:00:48,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:48,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:48,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:48,372 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 15:00:48,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 15:00:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:48,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 15:00:48,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:00:48,997 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 32 proven. 149 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-10-16 15:00:48,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 15:00:49,352 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 14 proven. 32 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-10-16 15:00:49,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948345745] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 15:00:49,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 15:00:49,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 12] total 17 [2022-10-16 15:00:49,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770969260] [2022-10-16 15:00:49,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 15:00:49,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 15:00:49,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:00:49,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 15:00:49,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2022-10-16 15:00:49,356 INFO L87 Difference]: Start difference. First operand 555 states and 827 transitions. Second operand has 17 states, 17 states have (on average 14.941176470588236) internal successors, (254), 14 states have internal predecessors, (254), 6 states have call successors, (53), 7 states have call predecessors, (53), 9 states have return successors, (53), 8 states have call predecessors, (53), 6 states have call successors, (53) [2022-10-16 15:00:59,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:59,622 INFO L93 Difference]: Finished difference Result 3581 states and 5573 transitions. [2022-10-16 15:00:59,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-10-16 15:00:59,623 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 14.941176470588236) internal successors, (254), 14 states have internal predecessors, (254), 6 states have call successors, (53), 7 states have call predecessors, (53), 9 states have return successors, (53), 8 states have call predecessors, (53), 6 states have call successors, (53) Word has length 258 [2022-10-16 15:00:59,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:59,644 INFO L225 Difference]: With dead ends: 3581 [2022-10-16 15:00:59,645 INFO L226 Difference]: Without dead ends: 3030 [2022-10-16 15:00:59,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 564 SyntacticMatches, 9 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5090 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1714, Invalid=12806, Unknown=0, NotChecked=0, Total=14520 [2022-10-16 15:00:59,655 INFO L413 NwaCegarLoop]: 1003 mSDtfsCounter, 3087 mSDsluCounter, 8923 mSDsCounter, 0 mSdLazyCounter, 9244 mSolverCounterSat, 1906 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3101 SdHoareTripleChecker+Valid, 9926 SdHoareTripleChecker+Invalid, 11150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1906 IncrementalHoareTripleChecker+Valid, 9244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:59,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3101 Valid, 9926 Invalid, 11150 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1906 Valid, 9244 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-10-16 15:00:59,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2022-10-16 15:00:59,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 1727. [2022-10-16 15:00:59,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1387 states have (on average 1.467916366258111) internal successors, (2036), 1418 states have internal predecessors, (2036), 264 states have call successors, (264), 73 states have call predecessors, (264), 75 states have return successors, (266), 262 states have call predecessors, (266), 264 states have call successors, (266) [2022-10-16 15:00:59,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2566 transitions. [2022-10-16 15:00:59,929 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2566 transitions. Word has length 258 [2022-10-16 15:00:59,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:59,929 INFO L495 AbstractCegarLoop]: Abstraction has 1727 states and 2566 transitions. [2022-10-16 15:00:59,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 14.941176470588236) internal successors, (254), 14 states have internal predecessors, (254), 6 states have call successors, (53), 7 states have call predecessors, (53), 9 states have return successors, (53), 8 states have call predecessors, (53), 6 states have call successors, (53) [2022-10-16 15:00:59,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2566 transitions. [2022-10-16 15:00:59,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-10-16 15:00:59,938 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:59,938 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:00:59,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-16 15:01:00,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:01:00,152 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 15:01:00,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:01:00,153 INFO L85 PathProgramCache]: Analyzing trace with hash -480958266, now seen corresponding path program 1 times [2022-10-16 15:01:00,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:01:00,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224726024] [2022-10-16 15:01:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:01:00,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:01:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 15:01:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 15:01:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:01:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 15:01:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 15:01:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-16 15:01:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 15:01:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 15:01:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 15:01:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-16 15:01:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-16 15:01:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 15:01:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-16 15:01:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-16 15:01:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-10-16 15:01:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-10-16 15:01:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-10-16 15:01:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 15:01:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 15:01:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-10-16 15:01:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-10-16 15:01:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-16 15:01:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-10-16 15:01:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,383 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 55 proven. 40 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-10-16 15:01:00,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:01:00,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224726024] [2022-10-16 15:01:00,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224726024] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:01:00,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543998104] [2022-10-16 15:01:00,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:01:00,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:01:00,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:01:00,387 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 15:01:00,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-16 15:01:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:01:00,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 15:01:00,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 15:01:00,790 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2022-10-16 15:01:00,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 15:01:00,985 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2022-10-16 15:01:00,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543998104] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 15:01:00,986 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 15:01:00,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-10-16 15:01:00,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996351054] [2022-10-16 15:01:00,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 15:01:00,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 15:01:00,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:01:00,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 15:01:00,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-10-16 15:01:00,989 INFO L87 Difference]: Start difference. First operand 1727 states and 2566 transitions. Second operand has 13 states, 13 states have (on average 18.923076923076923) internal successors, (246), 12 states have internal predecessors, (246), 6 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (45), 6 states have call predecessors, (45), 6 states have call successors, (45) [2022-10-16 15:01:02,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:01:02,124 INFO L93 Difference]: Finished difference Result 4090 states and 6137 transitions. [2022-10-16 15:01:02,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 15:01:02,126 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.923076923076923) internal successors, (246), 12 states have internal predecessors, (246), 6 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (45), 6 states have call predecessors, (45), 6 states have call successors, (45) Word has length 272 [2022-10-16 15:01:02,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:01:02,126 INFO L225 Difference]: With dead ends: 4090 [2022-10-16 15:01:02,127 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 15:01:02,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-10-16 15:01:02,144 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 550 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 15:01:02,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 1426 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 15:01:02,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 15:01:02,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 15:01:02,146 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 15:01:02,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 15:01:02,147 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 272 [2022-10-16 15:01:02,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:01:02,147 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 15:01:02,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.923076923076923) internal successors, (246), 12 states have internal predecessors, (246), 6 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (45), 6 states have call predecessors, (45), 6 states have call successors, (45) [2022-10-16 15:01:02,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 15:01:02,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 15:01:02,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-10-16 15:01:02,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-10-16 15:01:02,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-10-16 15:01:02,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-10-16 15:01:02,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-10-16 15:01:02,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-10-16 15:01:02,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-10-16 15:01:02,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-10-16 15:01:02,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-10-16 15:01:02,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-10-16 15:01:02,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-10-16 15:01:02,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:01:02,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 15:01:45,724 WARN L233 SmtUtils]: Spent 43.08s on a formula simplification. DAG size of input: 104 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-10-16 15:02:26,973 WARN L233 SmtUtils]: Spent 41.25s on a formula simplification. DAG size of input: 98 DAG size of output: 60 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-10-16 15:03:08,229 WARN L233 SmtUtils]: Spent 41.25s on a formula simplification. DAG size of input: 111 DAG size of output: 73 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-10-16 15:03:51,079 WARN L233 SmtUtils]: Spent 41.15s on a formula simplification. DAG size of input: 104 DAG size of output: 66 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-10-16 15:04:39,078 WARN L233 SmtUtils]: Spent 47.99s on a formula simplification. DAG size of input: 100 DAG size of output: 62 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)