./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 47d7aa734a1bf75c79acf2b3acca3677f12d2522fb1fc624c15ccfe9b5a8438a --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 00:33:54,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 00:33:54,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 00:33:54,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 00:33:54,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 00:33:54,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 00:33:54,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 00:33:54,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 00:33:54,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 00:33:54,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 00:33:54,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 00:33:54,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 00:33:54,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 00:33:54,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 00:33:54,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 00:33:54,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 00:33:54,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 00:33:54,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 00:33:54,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 00:33:54,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 00:33:54,661 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 00:33:54,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 00:33:54,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 00:33:54,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 00:33:54,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 00:33:54,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 00:33:54,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 00:33:54,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 00:33:54,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 00:33:54,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 00:33:54,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 00:33:54,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 00:33:54,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 00:33:54,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 00:33:54,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 00:33:54,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 00:33:54,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 00:33:54,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 00:33:54,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 00:33:54,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 00:33:54,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 00:33:54,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 00:33:54,689 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-22 00:33:54,720 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 00:33:54,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 00:33:54,721 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 00:33:54,721 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 00:33:54,722 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 00:33:54,722 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 00:33:54,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 00:33:54,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 00:33:54,723 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 00:33:54,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 00:33:54,724 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 00:33:54,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 00:33:54,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 00:33:54,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 00:33:54,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 00:33:54,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 00:33:54,734 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 00:33:54,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 00:33:54,734 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 00:33:54,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 00:33:54,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 00:33:54,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 00:33:54,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 00:33:54,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:33:54,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 00:33:54,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 00:33:54,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 00:33:54,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 00:33:54,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 00:33:54,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 00:33:54,737 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47d7aa734a1bf75c79acf2b3acca3677f12d2522fb1fc624c15ccfe9b5a8438a [2022-07-22 00:33:55,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 00:33:55,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 00:33:55,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 00:33:55,068 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 00:33:55,070 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 00:33:55,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-2.c [2022-07-22 00:33:55,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67b425a97/8a016094a9db483bbe8c81faf2d0b938/FLAG17ecdc68b [2022-07-22 00:33:55,524 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 00:33:55,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-random1d-2.c [2022-07-22 00:33:55,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67b425a97/8a016094a9db483bbe8c81faf2d0b938/FLAG17ecdc68b [2022-07-22 00:33:55,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67b425a97/8a016094a9db483bbe8c81faf2d0b938 [2022-07-22 00:33:55,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 00:33:55,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 00:33:55,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 00:33:55,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 00:33:55,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 00:33:55,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:33:55" (1/1) ... [2022-07-22 00:33:55,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f878e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:33:55, skipping insertion in model container [2022-07-22 00:33:55,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:33:55" (1/1) ... [2022-07-22 00:33:55,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 00:33:55,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 00:33:55,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:33:55,711 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 00:33:55,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:33:55,771 INFO L208 MainTranslator]: Completed translation [2022-07-22 00:33:55,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:33:55 WrapperNode [2022-07-22 00:33:55,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 00:33:55,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 00:33:55,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 00:33:55,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 00:33:55,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:33:55" (1/1) ... [2022-07-22 00:33:55,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:33:55" (1/1) ... [2022-07-22 00:33:55,808 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-07-22 00:33:55,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 00:33:55,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 00:33:55,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 00:33:55,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 00:33:55,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:33:55" (1/1) ... [2022-07-22 00:33:55,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:33:55" (1/1) ... [2022-07-22 00:33:55,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:33:55" (1/1) ... [2022-07-22 00:33:55,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:33:55" (1/1) ... [2022-07-22 00:33:55,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:33:55" (1/1) ... [2022-07-22 00:33:55,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:33:55" (1/1) ... [2022-07-22 00:33:55,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:33:55" (1/1) ... [2022-07-22 00:33:55,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 00:33:55,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 00:33:55,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 00:33:55,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 00:33:55,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:33:55" (1/1) ... [2022-07-22 00:33:55,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:33:55,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:33:55,861 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) [2022-07-22 00:33:55,888 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 [2022-07-22 00:33:55,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 00:33:55,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 00:33:55,958 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 00:33:55,960 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 00:33:56,078 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 00:33:56,087 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 00:33:56,088 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 00:33:56,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:33:56 BoogieIcfgContainer [2022-07-22 00:33:56,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 00:33:56,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 00:33:56,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 00:33:56,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 00:33:56,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:33:55" (1/3) ... [2022-07-22 00:33:56,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3060d647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:33:56, skipping insertion in model container [2022-07-22 00:33:56,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:33:55" (2/3) ... [2022-07-22 00:33:56,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3060d647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:33:56, skipping insertion in model container [2022-07-22 00:33:56,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:33:56" (3/3) ... [2022-07-22 00:33:56,097 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-random1d-2.c [2022-07-22 00:33:56,110 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 00:33:56,110 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-22 00:33:56,147 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 00:33:56,152 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@876de10, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1a5dc7d0 [2022-07-22 00:33:56,153 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-22 00:33:56,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:33:56,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-22 00:33:56,160 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:33:56,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-22 00:33:56,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:33:56,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:33:56,178 INFO L85 PathProgramCache]: Analyzing trace with hash 889513677, now seen corresponding path program 1 times [2022-07-22 00:33:56,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:33:56,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590169972] [2022-07-22 00:33:56,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:56,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:33:56,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:56,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:56,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:33:56,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590169972] [2022-07-22 00:33:56,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590169972] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:33:56,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:33:56,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:33:56,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791802428] [2022-07-22 00:33:56,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:33:56,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:33:56,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:33:56,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:33:56,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:33:56,348 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-07-22 00:33:56,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:33:56,393 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2022-07-22 00:33:56,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:33:56,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-22 00:33:56,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:33:56,411 INFO L225 Difference]: With dead ends: 41 [2022-07-22 00:33:56,411 INFO L226 Difference]: Without dead ends: 27 [2022-07-22 00:33:56,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:33:56,418 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 13 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:33:56,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 37 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:33:56,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-07-22 00:33:56,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2022-07-22 00:33:56,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 23 states have internal predecessors, (29), 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) [2022-07-22 00:33:56,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-07-22 00:33:56,452 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 6 [2022-07-22 00:33:56,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:33:56,453 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-07-22 00:33:56,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-07-22 00:33:56,453 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-07-22 00:33:56,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-22 00:33:56,454 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:33:56,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:33:56,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 00:33:56,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:33:56,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:33:56,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1805120262, now seen corresponding path program 1 times [2022-07-22 00:33:56,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:33:56,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930983447] [2022-07-22 00:33:56,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:56,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:33:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:56,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:56,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:33:56,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930983447] [2022-07-22 00:33:56,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930983447] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:33:56,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:33:56,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:33:56,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24722117] [2022-07-22 00:33:56,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:33:56,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:33:56,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:33:56,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:33:56,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:33:56,513 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-22 00:33:56,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:33:56,560 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-07-22 00:33:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:33:56,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-22 00:33:56,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:33:56,562 INFO L225 Difference]: With dead ends: 41 [2022-07-22 00:33:56,562 INFO L226 Difference]: Without dead ends: 39 [2022-07-22 00:33:56,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:33:56,564 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:33:56,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 20 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:33:56,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-22 00:33:56,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2022-07-22 00:33:56,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 36 states have internal predecessors, (48), 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) [2022-07-22 00:33:56,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2022-07-22 00:33:56,576 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 7 [2022-07-22 00:33:56,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:33:56,576 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2022-07-22 00:33:56,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-22 00:33:56,577 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2022-07-22 00:33:56,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 00:33:56,578 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:33:56,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:33:56,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 00:33:56,579 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:33:56,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:33:56,581 INFO L85 PathProgramCache]: Analyzing trace with hash 124153334, now seen corresponding path program 1 times [2022-07-22 00:33:56,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:33:56,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446762265] [2022-07-22 00:33:56,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:56,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:33:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:56,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:56,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:33:56,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446762265] [2022-07-22 00:33:56,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446762265] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:33:56,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:33:56,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:33:56,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360002507] [2022-07-22 00:33:56,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:33:56,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:33:56,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:33:56,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:33:56,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:33:56,642 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-07-22 00:33:56,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:33:56,667 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions. [2022-07-22 00:33:56,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:33:56,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-22 00:33:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:33:56,671 INFO L225 Difference]: With dead ends: 43 [2022-07-22 00:33:56,672 INFO L226 Difference]: Without dead ends: 42 [2022-07-22 00:33:56,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:33:56,675 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 25 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 [2022-07-22 00:33:56,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 25 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:33:56,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-07-22 00:33:56,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2022-07-22 00:33:56,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.5) internal successors, (51), 39 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:33:56,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2022-07-22 00:33:56,686 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 8 [2022-07-22 00:33:56,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:33:56,686 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2022-07-22 00:33:56,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-07-22 00:33:56,687 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2022-07-22 00:33:56,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-22 00:33:56,687 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:33:56,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:33:56,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 00:33:56,688 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:33:56,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:33:56,689 INFO L85 PathProgramCache]: Analyzing trace with hash -446213880, now seen corresponding path program 1 times [2022-07-22 00:33:56,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:33:56,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925957889] [2022-07-22 00:33:56,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:56,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:33:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:56,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:56,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:33:56,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925957889] [2022-07-22 00:33:56,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925957889] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:33:56,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:33:56,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:33:56,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766526379] [2022-07-22 00:33:56,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:33:56,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:33:56,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:33:56,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:33:56,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:33:56,724 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:33:56,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:33:56,733 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2022-07-22 00:33:56,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:33:56,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-22 00:33:56,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:33:56,734 INFO L225 Difference]: With dead ends: 40 [2022-07-22 00:33:56,735 INFO L226 Difference]: Without dead ends: 39 [2022-07-22 00:33:56,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:33:56,736 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:33:56,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:33:56,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-22 00:33:56,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-07-22 00:33:56,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.411764705882353) internal successors, (48), 38 states have internal predecessors, (48), 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) [2022-07-22 00:33:56,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2022-07-22 00:33:56,742 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 9 [2022-07-22 00:33:56,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:33:56,743 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-07-22 00:33:56,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:33:56,748 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2022-07-22 00:33:56,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 00:33:56,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:33:56,748 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:33:56,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 00:33:56,749 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:33:56,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:33:56,750 INFO L85 PathProgramCache]: Analyzing trace with hash -233874170, now seen corresponding path program 1 times [2022-07-22 00:33:56,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:33:56,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390450666] [2022-07-22 00:33:56,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:56,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:33:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:56,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:56,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:33:56,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390450666] [2022-07-22 00:33:56,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390450666] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:33:56,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067576975] [2022-07-22 00:33:56,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:56,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:33:56,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:33:56,782 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) [2022-07-22 00:33:56,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 00:33:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:56,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:33:56,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:33:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:56,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:33:56,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:56,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067576975] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:33:56,905 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:33:56,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-22 00:33:56,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388651542] [2022-07-22 00:33:56,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:33:56,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:33:56,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:33:56,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:33:56,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:33:56,907 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2022-07-22 00:33:56,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:33:56,991 INFO L93 Difference]: Finished difference Result 98 states and 135 transitions. [2022-07-22 00:33:56,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:33:56,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-22 00:33:56,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:33:56,993 INFO L225 Difference]: With dead ends: 98 [2022-07-22 00:33:56,993 INFO L226 Difference]: Without dead ends: 96 [2022-07-22 00:33:56,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:33:56,994 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 36 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:33:56,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 41 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:33:56,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-07-22 00:33:57,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 79. [2022-07-22 00:33:57,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 78 states have internal predecessors, (103), 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) [2022-07-22 00:33:57,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2022-07-22 00:33:57,013 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 12 [2022-07-22 00:33:57,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:33:57,014 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2022-07-22 00:33:57,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2022-07-22 00:33:57,014 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2022-07-22 00:33:57,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 00:33:57,015 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:33:57,015 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:33:57,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-22 00:33:57,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:33:57,236 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:33:57,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:33:57,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1982025395, now seen corresponding path program 1 times [2022-07-22 00:33:57,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:33:57,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513694304] [2022-07-22 00:33:57,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:57,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:33:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:57,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:57,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:33:57,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513694304] [2022-07-22 00:33:57,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513694304] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:33:57,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842531184] [2022-07-22 00:33:57,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:57,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:33:57,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:33:57,282 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) [2022-07-22 00:33:57,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 00:33:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:57,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:33:57,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:33:57,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:57,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:33:57,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:57,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842531184] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:33:57,359 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:33:57,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-22 00:33:57,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877598223] [2022-07-22 00:33:57,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:33:57,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:33:57,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:33:57,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:33:57,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:33:57,361 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:33:57,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:33:57,399 INFO L93 Difference]: Finished difference Result 135 states and 186 transitions. [2022-07-22 00:33:57,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 00:33:57,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-22 00:33:57,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:33:57,401 INFO L225 Difference]: With dead ends: 135 [2022-07-22 00:33:57,401 INFO L226 Difference]: Without dead ends: 133 [2022-07-22 00:33:57,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:33:57,403 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 35 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:33:57,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 23 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:33:57,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-07-22 00:33:57,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 99. [2022-07-22 00:33:57,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.3473684210526315) internal successors, (128), 98 states have internal predecessors, (128), 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) [2022-07-22 00:33:57,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 128 transitions. [2022-07-22 00:33:57,424 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 128 transitions. Word has length 13 [2022-07-22 00:33:57,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:33:57,425 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 128 transitions. [2022-07-22 00:33:57,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:33:57,425 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 128 transitions. [2022-07-22 00:33:57,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-22 00:33:57,426 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:33:57,426 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-22 00:33:57,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 00:33:57,626 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 [2022-07-22 00:33:57,627 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:33:57,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:33:57,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1414776337, now seen corresponding path program 1 times [2022-07-22 00:33:57,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:33:57,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686024935] [2022-07-22 00:33:57,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:57,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:33:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:57,674 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:57,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:33:57,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686024935] [2022-07-22 00:33:57,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686024935] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:33:57,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245488982] [2022-07-22 00:33:57,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:57,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:33:57,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:33:57,677 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) [2022-07-22 00:33:57,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 00:33:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:57,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:33:57,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:33:57,721 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:57,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:33:57,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:57,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245488982] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:33:57,747 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:33:57,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-22 00:33:57,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661347697] [2022-07-22 00:33:57,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:33:57,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:33:57,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:33:57,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:33:57,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:33:57,749 INFO L87 Difference]: Start difference. First operand 99 states and 128 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:33:57,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:33:57,778 INFO L93 Difference]: Finished difference Result 207 states and 268 transitions. [2022-07-22 00:33:57,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:33:57,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-22 00:33:57,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:33:57,780 INFO L225 Difference]: With dead ends: 207 [2022-07-22 00:33:57,781 INFO L226 Difference]: Without dead ends: 206 [2022-07-22 00:33:57,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:33:57,782 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 33 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:33:57,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 44 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:33:57,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-07-22 00:33:57,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 204. [2022-07-22 00:33:57,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 200 states have (on average 1.24) internal successors, (248), 203 states have internal predecessors, (248), 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) [2022-07-22 00:33:57,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 248 transitions. [2022-07-22 00:33:57,798 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 248 transitions. Word has length 14 [2022-07-22 00:33:57,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:33:57,798 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 248 transitions. [2022-07-22 00:33:57,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:33:57,799 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 248 transitions. [2022-07-22 00:33:57,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-22 00:33:57,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:33:57,800 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-07-22 00:33:57,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 00:33:58,020 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 [2022-07-22 00:33:58,020 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:33:58,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:33:58,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1022063642, now seen corresponding path program 1 times [2022-07-22 00:33:58,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:33:58,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303642540] [2022-07-22 00:33:58,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:58,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:33:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:58,064 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:58,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:33:58,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303642540] [2022-07-22 00:33:58,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303642540] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:33:58,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852574406] [2022-07-22 00:33:58,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:58,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:33:58,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:33:58,067 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) [2022-07-22 00:33:58,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 00:33:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:58,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 00:33:58,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:33:58,122 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:58,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:33:58,163 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:58,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852574406] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:33:58,164 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:33:58,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-22 00:33:58,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832915919] [2022-07-22 00:33:58,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:33:58,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 00:33:58,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:33:58,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 00:33:58,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:33:58,166 INFO L87 Difference]: Start difference. First operand 204 states and 248 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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) [2022-07-22 00:33:58,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:33:58,232 INFO L93 Difference]: Finished difference Result 399 states and 515 transitions. [2022-07-22 00:33:58,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 00:33:58,232 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-22 00:33:58,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:33:58,234 INFO L225 Difference]: With dead ends: 399 [2022-07-22 00:33:58,234 INFO L226 Difference]: Without dead ends: 398 [2022-07-22 00:33:58,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:33:58,236 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 41 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:33:58,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 49 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:33:58,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-07-22 00:33:58,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 330. [2022-07-22 00:33:58,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 326 states have (on average 1.2760736196319018) internal successors, (416), 329 states have internal predecessors, (416), 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) [2022-07-22 00:33:58,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 416 transitions. [2022-07-22 00:33:58,268 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 416 transitions. Word has length 19 [2022-07-22 00:33:58,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:33:58,268 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 416 transitions. [2022-07-22 00:33:58,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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) [2022-07-22 00:33:58,269 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 416 transitions. [2022-07-22 00:33:58,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-22 00:33:58,270 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:33:58,270 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-22 00:33:58,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 00:33:58,494 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 [2022-07-22 00:33:58,494 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:33:58,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:33:58,495 INFO L85 PathProgramCache]: Analyzing trace with hash -957667535, now seen corresponding path program 2 times [2022-07-22 00:33:58,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:33:58,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839236615] [2022-07-22 00:33:58,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:58,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:33:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:58,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:33:58,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839236615] [2022-07-22 00:33:58,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839236615] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:33:58,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465775398] [2022-07-22 00:33:58,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:33:58,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:33:58,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:33:58,557 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) [2022-07-22 00:33:58,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 00:33:58,588 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:33:58,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:33:58,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 00:33:58,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:33:58,640 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:58,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:33:58,711 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:58,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465775398] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:33:58,712 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:33:58,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-22 00:33:58,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229017201] [2022-07-22 00:33:58,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:33:58,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 00:33:58,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:33:58,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 00:33:58,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:33:58,714 INFO L87 Difference]: Start difference. First operand 330 states and 416 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 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) [2022-07-22 00:33:58,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:33:58,832 INFO L93 Difference]: Finished difference Result 871 states and 1195 transitions. [2022-07-22 00:33:58,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 00:33:58,833 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-22 00:33:58,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:33:58,836 INFO L225 Difference]: With dead ends: 871 [2022-07-22 00:33:58,836 INFO L226 Difference]: Without dead ends: 869 [2022-07-22 00:33:58,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:33:58,837 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 111 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:33:58,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 81 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:33:58,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2022-07-22 00:33:58,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 573. [2022-07-22 00:33:58,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 569 states have (on average 1.2864674868189807) internal successors, (732), 572 states have internal predecessors, (732), 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) [2022-07-22 00:33:58,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 732 transitions. [2022-07-22 00:33:58,864 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 732 transitions. Word has length 30 [2022-07-22 00:33:58,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:33:58,864 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 732 transitions. [2022-07-22 00:33:58,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 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) [2022-07-22 00:33:58,865 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 732 transitions. [2022-07-22 00:33:58,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-22 00:33:58,870 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:33:58,871 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-07-22 00:33:58,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-22 00:33:59,091 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 [2022-07-22 00:33:59,092 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:33:59,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:33:59,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1195498150, now seen corresponding path program 2 times [2022-07-22 00:33:59,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:33:59,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52075702] [2022-07-22 00:33:59,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:59,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:33:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:59,125 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-22 00:33:59,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:33:59,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52075702] [2022-07-22 00:33:59,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52075702] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:33:59,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40045880] [2022-07-22 00:33:59,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:33:59,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:33:59,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:33:59,128 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) [2022-07-22 00:33:59,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 00:33:59,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 00:33:59,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:33:59,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:33:59,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:33:59,198 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-22 00:33:59,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:33:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-22 00:33:59,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40045880] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:33:59,237 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:33:59,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2022-07-22 00:33:59,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369754170] [2022-07-22 00:33:59,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:33:59,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:33:59,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:33:59,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:33:59,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:33:59,239 INFO L87 Difference]: Start difference. First operand 573 states and 732 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-07-22 00:33:59,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:33:59,265 INFO L93 Difference]: Finished difference Result 573 states and 732 transitions. [2022-07-22 00:33:59,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:33:59,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-07-22 00:33:59,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:33:59,269 INFO L225 Difference]: With dead ends: 573 [2022-07-22 00:33:59,269 INFO L226 Difference]: Without dead ends: 572 [2022-07-22 00:33:59,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:33:59,270 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:33:59,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 13 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:33:59,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-07-22 00:33:59,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 457. [2022-07-22 00:33:59,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 454 states have (on average 1.1894273127753303) internal successors, (540), 456 states have internal predecessors, (540), 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) [2022-07-22 00:33:59,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 540 transitions. [2022-07-22 00:33:59,299 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 540 transitions. Word has length 32 [2022-07-22 00:33:59,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:33:59,299 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 540 transitions. [2022-07-22 00:33:59,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-07-22 00:33:59,299 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 540 transitions. [2022-07-22 00:33:59,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-22 00:33:59,303 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:33:59,303 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 1, 1, 1, 1] [2022-07-22 00:33:59,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 00:33:59,519 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 [2022-07-22 00:33:59,519 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:33:59,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:33:59,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1056880102, now seen corresponding path program 2 times [2022-07-22 00:33:59,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:33:59,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861368673] [2022-07-22 00:33:59,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:33:59,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:33:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:33:59,597 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:59,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:33:59,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861368673] [2022-07-22 00:33:59,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861368673] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:33:59,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534907127] [2022-07-22 00:33:59,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:33:59,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:33:59,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:33:59,600 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) [2022-07-22 00:33:59,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 00:33:59,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:33:59,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:33:59,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 00:33:59,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:33:59,694 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:59,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:33:59,830 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:33:59,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534907127] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:33:59,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:33:59,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-07-22 00:33:59,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472543671] [2022-07-22 00:33:59,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:33:59,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-22 00:33:59,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:33:59,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-22 00:33:59,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-07-22 00:33:59,833 INFO L87 Difference]: Start difference. First operand 457 states and 540 transitions. Second operand has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 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) [2022-07-22 00:34:00,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:00,025 INFO L93 Difference]: Finished difference Result 1649 states and 2020 transitions. [2022-07-22 00:34:00,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 00:34:00,025 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-07-22 00:34:00,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:00,031 INFO L225 Difference]: With dead ends: 1649 [2022-07-22 00:34:00,031 INFO L226 Difference]: Without dead ends: 1648 [2022-07-22 00:34:00,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-07-22 00:34:00,033 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 110 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:00,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 82 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:34:00,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2022-07-22 00:34:00,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 903. [2022-07-22 00:34:00,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 900 states have (on average 1.18) internal successors, (1062), 902 states have internal predecessors, (1062), 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) [2022-07-22 00:34:00,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1062 transitions. [2022-07-22 00:34:00,080 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1062 transitions. Word has length 43 [2022-07-22 00:34:00,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:00,081 INFO L495 AbstractCegarLoop]: Abstraction has 903 states and 1062 transitions. [2022-07-22 00:34:00,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 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) [2022-07-22 00:34:00,081 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1062 transitions. [2022-07-22 00:34:00,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-22 00:34:00,082 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:00,082 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2022-07-22 00:34:00,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 00:34:00,295 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 [2022-07-22 00:34:00,296 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:34:00,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:00,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1254740665, now seen corresponding path program 3 times [2022-07-22 00:34:00,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:00,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581083900] [2022-07-22 00:34:00,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:00,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:00,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:00,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581083900] [2022-07-22 00:34:00,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581083900] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:00,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449269608] [2022-07-22 00:34:00,442 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:34:00,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:00,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:00,443 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) [2022-07-22 00:34:00,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 00:34:00,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-22 00:34:00,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:34:00,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-22 00:34:00,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:00,578 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:00,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:00,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449269608] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:00,841 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:00,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-07-22 00:34:00,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393809843] [2022-07-22 00:34:00,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:00,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-22 00:34:00,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:00,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-22 00:34:00,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-22 00:34:00,849 INFO L87 Difference]: Start difference. First operand 903 states and 1062 transitions. Second operand has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 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) [2022-07-22 00:34:01,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:01,114 INFO L93 Difference]: Finished difference Result 4199 states and 5264 transitions. [2022-07-22 00:34:01,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 00:34:01,114 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-22 00:34:01,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:01,129 INFO L225 Difference]: With dead ends: 4199 [2022-07-22 00:34:01,130 INFO L226 Difference]: Without dead ends: 4197 [2022-07-22 00:34:01,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-22 00:34:01,133 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 167 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:01,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 127 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:34:01,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2022-07-22 00:34:01,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 1945. [2022-07-22 00:34:01,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1945 states, 1942 states have (on average 1.1596292481977344) internal successors, (2252), 1944 states have internal predecessors, (2252), 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) [2022-07-22 00:34:01,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 2252 transitions. [2022-07-22 00:34:01,239 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 2252 transitions. Word has length 66 [2022-07-22 00:34:01,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:01,240 INFO L495 AbstractCegarLoop]: Abstraction has 1945 states and 2252 transitions. [2022-07-22 00:34:01,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 24 states have internal predecessors, (130), 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) [2022-07-22 00:34:01,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 2252 transitions. [2022-07-22 00:34:01,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-22 00:34:01,242 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:01,242 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 1, 1, 1, 1] [2022-07-22 00:34:01,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 00:34:01,455 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 [2022-07-22 00:34:01,456 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:34:01,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:01,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1812968066, now seen corresponding path program 3 times [2022-07-22 00:34:01,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:01,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060702629] [2022-07-22 00:34:01,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:01,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:01,652 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:01,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:01,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060702629] [2022-07-22 00:34:01,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060702629] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:01,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386855525] [2022-07-22 00:34:01,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:34:01,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:01,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:01,661 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) [2022-07-22 00:34:01,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 00:34:01,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-07-22 00:34:01,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:34:01,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-22 00:34:01,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:01,829 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:01,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:02,257 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:02,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386855525] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:02,258 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:02,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2022-07-22 00:34:02,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905915544] [2022-07-22 00:34:02,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:02,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-22 00:34:02,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:02,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-22 00:34:02,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-07-22 00:34:02,260 INFO L87 Difference]: Start difference. First operand 1945 states and 2252 transitions. Second operand has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 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) [2022-07-22 00:34:02,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:02,811 INFO L93 Difference]: Finished difference Result 9843 states and 11726 transitions. [2022-07-22 00:34:02,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-22 00:34:02,812 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-07-22 00:34:02,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:02,842 INFO L225 Difference]: With dead ends: 9843 [2022-07-22 00:34:02,842 INFO L226 Difference]: Without dead ends: 9842 [2022-07-22 00:34:02,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-07-22 00:34:02,849 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 248 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:02,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 164 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 00:34:02,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9842 states. [2022-07-22 00:34:03,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9842 to 3731. [2022-07-22 00:34:03,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3731 states, 3728 states have (on average 1.1539699570815452) internal successors, (4302), 3730 states have internal predecessors, (4302), 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) [2022-07-22 00:34:03,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 4302 transitions. [2022-07-22 00:34:03,125 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 4302 transitions. Word has length 91 [2022-07-22 00:34:03,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:03,126 INFO L495 AbstractCegarLoop]: Abstraction has 3731 states and 4302 transitions. [2022-07-22 00:34:03,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.806451612903226) internal successors, (180), 32 states have internal predecessors, (180), 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) [2022-07-22 00:34:03,126 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 4302 transitions. [2022-07-22 00:34:03,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-22 00:34:03,133 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:03,133 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2022-07-22 00:34:03,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 00:34:03,347 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 [2022-07-22 00:34:03,347 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:34:03,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:03,348 INFO L85 PathProgramCache]: Analyzing trace with hash 924663923, now seen corresponding path program 4 times [2022-07-22 00:34:03,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:03,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075140464] [2022-07-22 00:34:03,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:03,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:03,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:03,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:03,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075140464] [2022-07-22 00:34:03,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075140464] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:03,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195119043] [2022-07-22 00:34:03,677 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-22 00:34:03,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:03,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:03,680 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) [2022-07-22 00:34:03,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 00:34:03,763 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-22 00:34:03,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:34:03,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-22 00:34:03,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:03,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:04,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:04,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195119043] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:04,740 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:04,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-07-22 00:34:04,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056928916] [2022-07-22 00:34:04,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:04,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-22 00:34:04,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:04,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-22 00:34:04,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-22 00:34:04,743 INFO L87 Difference]: Start difference. First operand 3731 states and 4302 transitions. Second operand has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 states have internal predecessors, (274), 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) [2022-07-22 00:34:05,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:05,839 INFO L93 Difference]: Finished difference Result 26439 states and 31924 transitions. [2022-07-22 00:34:05,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-22 00:34:05,840 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2022-07-22 00:34:05,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:05,912 INFO L225 Difference]: With dead ends: 26439 [2022-07-22 00:34:05,913 INFO L226 Difference]: Without dead ends: 26437 [2022-07-22 00:34:05,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-22 00:34:05,927 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 378 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:05,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 248 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 00:34:05,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26437 states. [2022-07-22 00:34:06,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26437 to 7993. [2022-07-22 00:34:06,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7993 states, 7990 states have (on average 1.1429286608260325) internal successors, (9132), 7992 states have internal predecessors, (9132), 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) [2022-07-22 00:34:06,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7993 states to 7993 states and 9132 transitions. [2022-07-22 00:34:06,515 INFO L78 Accepts]: Start accepts. Automaton has 7993 states and 9132 transitions. Word has length 138 [2022-07-22 00:34:06,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:06,515 INFO L495 AbstractCegarLoop]: Abstraction has 7993 states and 9132 transitions. [2022-07-22 00:34:06,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 48 states have internal predecessors, (274), 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) [2022-07-22 00:34:06,516 INFO L276 IsEmpty]: Start isEmpty. Operand 7993 states and 9132 transitions. [2022-07-22 00:34:06,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-22 00:34:06,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:06,522 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 1, 1, 1, 1] [2022-07-22 00:34:06,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-22 00:34:06,739 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 [2022-07-22 00:34:06,739 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:34:06,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:06,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1942998190, now seen corresponding path program 4 times [2022-07-22 00:34:06,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:06,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429228470] [2022-07-22 00:34:06,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:06,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:07,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:07,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:07,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429228470] [2022-07-22 00:34:07,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429228470] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:07,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609209268] [2022-07-22 00:34:07,357 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-22 00:34:07,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:07,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:07,358 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) [2022-07-22 00:34:07,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-22 00:34:07,436 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-22 00:34:07,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:34:07,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 32 conjunts are in the unsatisfiable core [2022-07-22 00:34:07,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:07,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:07,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:08,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:08,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609209268] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:08,959 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:08,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2022-07-22 00:34:08,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050262156] [2022-07-22 00:34:08,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:08,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-07-22 00:34:08,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:08,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-07-22 00:34:08,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-07-22 00:34:08,963 INFO L87 Difference]: Start difference. First operand 7993 states and 9132 transitions. Second operand has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 states have internal predecessors, (372), 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) [2022-07-22 00:34:11,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:11,305 INFO L93 Difference]: Finished difference Result 65015 states and 75718 transitions. [2022-07-22 00:34:11,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-07-22 00:34:11,305 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 187 [2022-07-22 00:34:11,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:11,444 INFO L225 Difference]: With dead ends: 65015 [2022-07-22 00:34:11,444 INFO L226 Difference]: Without dead ends: 65014 [2022-07-22 00:34:11,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-07-22 00:34:11,468 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 562 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 720 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 720 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:11,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 326 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [720 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 00:34:11,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65014 states. [2022-07-22 00:34:12,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65014 to 15147. [2022-07-22 00:34:12,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15147 states, 15144 states have (on average 1.1398573692551506) internal successors, (17262), 15146 states have internal predecessors, (17262), 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) [2022-07-22 00:34:12,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15147 states to 15147 states and 17262 transitions. [2022-07-22 00:34:12,934 INFO L78 Accepts]: Start accepts. Automaton has 15147 states and 17262 transitions. Word has length 187 [2022-07-22 00:34:12,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:12,934 INFO L495 AbstractCegarLoop]: Abstraction has 15147 states and 17262 transitions. [2022-07-22 00:34:12,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 5.904761904761905) internal successors, (372), 64 states have internal predecessors, (372), 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) [2022-07-22 00:34:12,935 INFO L276 IsEmpty]: Start isEmpty. Operand 15147 states and 17262 transitions. [2022-07-22 00:34:12,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-07-22 00:34:12,946 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:12,946 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2022-07-22 00:34:12,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-22 00:34:13,159 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 [2022-07-22 00:34:13,160 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:34:13,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:13,160 INFO L85 PathProgramCache]: Analyzing trace with hash -2065071413, now seen corresponding path program 5 times [2022-07-22 00:34:13,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:13,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554462611] [2022-07-22 00:34:13,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:13,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:14,180 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:14,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:14,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554462611] [2022-07-22 00:34:14,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554462611] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:14,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980904653] [2022-07-22 00:34:14,181 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-22 00:34:14,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:14,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:14,183 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) [2022-07-22 00:34:14,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 00:34:14,310 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-22 00:34:14,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:34:14,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-22 00:34:14,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:14,645 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:14,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:17,160 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:17,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980904653] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:17,161 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:17,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-07-22 00:34:17,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076409982] [2022-07-22 00:34:17,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:17,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-07-22 00:34:17,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:17,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-07-22 00:34:17,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-22 00:34:17,167 INFO L87 Difference]: Start difference. First operand 15147 states and 17262 transitions. Second operand has 96 states, 95 states have (on average 5.91578947368421) internal successors, (562), 96 states have internal predecessors, (562), 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) [2022-07-22 00:34:23,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:23,200 INFO L93 Difference]: Finished difference Result 182335 states and 213860 transitions. [2022-07-22 00:34:23,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-07-22 00:34:23,201 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.91578947368421) internal successors, (562), 96 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 282 [2022-07-22 00:34:23,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:23,466 INFO L225 Difference]: With dead ends: 182335 [2022-07-22 00:34:23,466 INFO L226 Difference]: Without dead ends: 182333 [2022-07-22 00:34:23,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-22 00:34:23,511 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1055 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 869 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 869 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:23,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 486 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [869 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 00:34:23,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182333 states. [2022-07-22 00:34:26,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182333 to 32377. [2022-07-22 00:34:26,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32377 states, 32374 states have (on average 1.1341199728176932) internal successors, (36716), 32376 states have internal predecessors, (36716), 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) [2022-07-22 00:34:26,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32377 states to 32377 states and 36716 transitions. [2022-07-22 00:34:26,947 INFO L78 Accepts]: Start accepts. Automaton has 32377 states and 36716 transitions. Word has length 282 [2022-07-22 00:34:26,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:34:26,948 INFO L495 AbstractCegarLoop]: Abstraction has 32377 states and 36716 transitions. [2022-07-22 00:34:26,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.91578947368421) internal successors, (562), 96 states have internal predecessors, (562), 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) [2022-07-22 00:34:26,948 INFO L276 IsEmpty]: Start isEmpty. Operand 32377 states and 36716 transitions. [2022-07-22 00:34:26,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-07-22 00:34:26,970 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:34:26,970 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 62, 62, 62, 1, 1, 1, 1] [2022-07-22 00:34:26,995 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-07-22 00:34:27,195 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 [2022-07-22 00:34:27,196 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:34:27,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:34:27,196 INFO L85 PathProgramCache]: Analyzing trace with hash 2113926386, now seen corresponding path program 5 times [2022-07-22 00:34:27,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:34:27,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930676772] [2022-07-22 00:34:27,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:34:27,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:34:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:34:28,801 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 11594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:28,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:34:28,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930676772] [2022-07-22 00:34:28,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930676772] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:34:28,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116390928] [2022-07-22 00:34:28,801 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-22 00:34:28,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:34:28,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:34:28,803 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) [2022-07-22 00:34:28,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-22 00:34:28,988 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2022-07-22 00:34:28,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:34:28,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 64 conjunts are in the unsatisfiable core [2022-07-22 00:34:28,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:34:29,401 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 11594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:29,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:34:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 11594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:34:33,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116390928] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:34:33,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:34:33,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 127 [2022-07-22 00:34:33,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118049904] [2022-07-22 00:34:33,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:34:33,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2022-07-22 00:34:33,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:34:33,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2022-07-22 00:34:33,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2022-07-22 00:34:33,563 INFO L87 Difference]: Start difference. First operand 32377 states and 36716 transitions. Second operand has 128 states, 127 states have (on average 5.952755905511811) internal successors, (756), 128 states have internal predecessors, (756), 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) [2022-07-22 00:34:51,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:34:51,413 INFO L93 Difference]: Finished difference Result 464895 states and 533222 transitions. [2022-07-22 00:34:51,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-07-22 00:34:51,414 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 5.952755905511811) internal successors, (756), 128 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 379 [2022-07-22 00:34:51,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:34:52,374 INFO L225 Difference]: With dead ends: 464895 [2022-07-22 00:34:52,374 INFO L226 Difference]: Without dead ends: 464894 [2022-07-22 00:34:52,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 694 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2022-07-22 00:34:52,482 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1252 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 1371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1371 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 00:34:52,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 645 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1371 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 00:34:52,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464894 states. [2022-07-22 00:35:01,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464894 to 61019. [2022-07-22 00:35:01,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61019 states, 61016 states have (on average 1.132522617018487) internal successors, (69102), 61018 states have internal predecessors, (69102), 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) [2022-07-22 00:35:01,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61019 states to 61019 states and 69102 transitions. [2022-07-22 00:35:01,856 INFO L78 Accepts]: Start accepts. Automaton has 61019 states and 69102 transitions. Word has length 379 [2022-07-22 00:35:01,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:35:01,857 INFO L495 AbstractCegarLoop]: Abstraction has 61019 states and 69102 transitions. [2022-07-22 00:35:01,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 5.952755905511811) internal successors, (756), 128 states have internal predecessors, (756), 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) [2022-07-22 00:35:01,857 INFO L276 IsEmpty]: Start isEmpty. Operand 61019 states and 69102 transitions. [2022-07-22 00:35:01,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2022-07-22 00:35:01,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:35:01,905 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 1, 1, 1, 1] [2022-07-22 00:35:01,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-22 00:35:02,119 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 [2022-07-22 00:35:02,120 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:35:02,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:35:02,120 INFO L85 PathProgramCache]: Analyzing trace with hash 944404347, now seen corresponding path program 6 times [2022-07-22 00:35:02,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:35:02,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689430911] [2022-07-22 00:35:02,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:35:02,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:35:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:35:05,190 INFO L134 CoverageAnalysis]: Checked inductivity of 26508 backedges. 0 proven. 26508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:35:05,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:35:05,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689430911] [2022-07-22 00:35:05,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689430911] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:35:05,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254161097] [2022-07-22 00:35:05,190 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-22 00:35:05,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:35:05,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:35:05,192 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) [2022-07-22 00:35:05,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-22 00:35:05,450 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-22 00:35:05,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:35:05,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-22 00:35:05,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:35:05,999 INFO L134 CoverageAnalysis]: Checked inductivity of 26508 backedges. 0 proven. 26508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:35:05,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:35:14,783 INFO L134 CoverageAnalysis]: Checked inductivity of 26508 backedges. 0 proven. 26508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:35:14,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254161097] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:35:14,784 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:35:14,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-07-22 00:35:14,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231157885] [2022-07-22 00:35:14,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:35:14,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-07-22 00:35:14,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:35:14,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-07-22 00:35:14,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-07-22 00:35:14,796 INFO L87 Difference]: Start difference. First operand 61019 states and 69102 transitions. Second operand has 192 states, 191 states have (on average 5.958115183246074) internal successors, (1138), 192 states have internal predecessors, (1138), 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)