./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/LexIndexValue-Array-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 791161d1 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/LexIndexValue-Array-1.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 d69e4513fb8989bf305d8f9ce21862e8623f2a3d0c8146e8e7fb7e8c658a7eff --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 13:16:57,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 13:16:57,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 13:16:57,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 13:16:57,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 13:16:57,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 13:16:57,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 13:16:57,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 13:16:57,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 13:16:57,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 13:16:57,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 13:16:57,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 13:16:57,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 13:16:57,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 13:16:57,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 13:16:57,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 13:16:57,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 13:16:57,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 13:16:57,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 13:16:57,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 13:16:57,212 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 13:16:57,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 13:16:57,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 13:16:57,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 13:16:57,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 13:16:57,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 13:16:57,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 13:16:57,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 13:16:57,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 13:16:57,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 13:16:57,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 13:16:57,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 13:16:57,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 13:16:57,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 13:16:57,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 13:16:57,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 13:16:57,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 13:16:57,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 13:16:57,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 13:16:57,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 13:16:57,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 13:16:57,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 13:16:57,227 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-23 13:16:57,250 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 13:16:57,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 13:16:57,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 13:16:57,250 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 13:16:57,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 13:16:57,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 13:16:57,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 13:16:57,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 13:16:57,252 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 13:16:57,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 13:16:57,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 13:16:57,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 13:16:57,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 13:16:57,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 13:16:57,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 13:16:57,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 13:16:57,253 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-23 13:16:57,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 13:16:57,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 13:16:57,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 13:16:57,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 13:16:57,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 13:16:57,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 13:16:57,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:16:57,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 13:16:57,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 13:16:57,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 13:16:57,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 13:16:57,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 13:16:57,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 13:16:57,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d69e4513fb8989bf305d8f9ce21862e8623f2a3d0c8146e8e7fb7e8c658a7eff [2022-07-23 13:16:57,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 13:16:57,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 13:16:57,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 13:16:57,440 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 13:16:57,441 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 13:16:57,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/LexIndexValue-Array-1.c [2022-07-23 13:16:57,506 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6420b569/3a96a8506bd34396a69306d2381b871c/FLAGb3ead8bc3 [2022-07-23 13:16:57,962 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 13:16:57,962 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/LexIndexValue-Array-1.c [2022-07-23 13:16:57,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6420b569/3a96a8506bd34396a69306d2381b871c/FLAGb3ead8bc3 [2022-07-23 13:16:58,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6420b569/3a96a8506bd34396a69306d2381b871c [2022-07-23 13:16:58,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 13:16:58,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 13:16:58,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 13:16:58,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 13:16:58,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 13:16:58,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:16:58" (1/1) ... [2022-07-23 13:16:58,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b987040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:58, skipping insertion in model container [2022-07-23 13:16:58,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:16:58" (1/1) ... [2022-07-23 13:16:58,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 13:16:58,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 13:16:58,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:16:58,654 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 13:16:58,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:16:58,680 INFO L208 MainTranslator]: Completed translation [2022-07-23 13:16:58,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:58 WrapperNode [2022-07-23 13:16:58,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 13:16:58,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 13:16:58,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 13:16:58,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 13:16:58,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:58" (1/1) ... [2022-07-23 13:16:58,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:58" (1/1) ... [2022-07-23 13:16:58,720 INFO L137 Inliner]: procedures = 8, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2022-07-23 13:16:58,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 13:16:58,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 13:16:58,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 13:16:58,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 13:16:58,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:58" (1/1) ... [2022-07-23 13:16:58,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:58" (1/1) ... [2022-07-23 13:16:58,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:58" (1/1) ... [2022-07-23 13:16:58,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:58" (1/1) ... [2022-07-23 13:16:58,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:58" (1/1) ... [2022-07-23 13:16:58,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:58" (1/1) ... [2022-07-23 13:16:58,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:58" (1/1) ... [2022-07-23 13:16:58,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 13:16:58,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 13:16:58,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 13:16:58,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 13:16:58,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:58" (1/1) ... [2022-07-23 13:16:58,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:16:58,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:16:58,817 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) [2022-07-23 13:16:58,822 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 [2022-07-23 13:16:58,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 13:16:58,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 13:16:58,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 13:16:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 13:16:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 13:16:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 13:16:58,905 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 13:16:58,907 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 13:16:59,019 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 13:16:59,023 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 13:16:59,023 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 13:16:59,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:16:59 BoogieIcfgContainer [2022-07-23 13:16:59,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 13:16:59,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 13:16:59,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 13:16:59,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 13:16:59,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:16:58" (1/3) ... [2022-07-23 13:16:59,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d2acef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:16:59, skipping insertion in model container [2022-07-23 13:16:59,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:16:58" (2/3) ... [2022-07-23 13:16:59,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d2acef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:16:59, skipping insertion in model container [2022-07-23 13:16:59,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:16:59" (3/3) ... [2022-07-23 13:16:59,051 INFO L111 eAbstractionObserver]: Analyzing ICFG LexIndexValue-Array-1.c [2022-07-23 13:16:59,070 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 13:16:59,070 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-23 13:16:59,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 13:16:59,147 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@7cd64f1e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@49a1a7ef [2022-07-23 13:16:59,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-23 13:16:59,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.7058823529411764) 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) [2022-07-23 13:16:59,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-23 13:16:59,159 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:16:59,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-23 13:16:59,159 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)] === [2022-07-23 13:16:59,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:16:59,166 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-07-23 13:16:59,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:16:59,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649133784] [2022-07-23 13:16:59,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:16:59,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:16:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:16:59,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:16:59,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:16:59,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649133784] [2022-07-23 13:16:59,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649133784] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:16:59,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:16:59,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:16:59,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89635526] [2022-07-23 13:16:59,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:16:59,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:16:59,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:16:59,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:16:59,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:16:59,385 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.7058823529411764) 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-07-23 13:16:59,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:16:59,418 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2022-07-23 13:16:59,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:16:59,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-07-23 13:16:59,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:16:59,429 INFO L225 Difference]: With dead ends: 46 [2022-07-23 13:16:59,429 INFO L226 Difference]: Without dead ends: 24 [2022-07-23 13:16:59,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:16:59,433 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:16:59,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 65 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:16:59,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-07-23 13:16:59,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-07-23 13:16:59,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.5) internal successors, (27), 23 states have internal predecessors, (27), 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) [2022-07-23 13:16:59,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-07-23 13:16:59,453 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 5 [2022-07-23 13:16:59,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:16:59,454 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-07-23 13:16:59,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-07-23 13:16:59,454 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-07-23 13:16:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-23 13:16:59,454 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:16:59,455 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-23 13:16:59,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 13:16:59,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-23 13:16:59,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:16:59,456 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-07-23 13:16:59,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:16:59,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66638004] [2022-07-23 13:16:59,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:16:59,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:16:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:16:59,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-23 13:16:59,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:16:59,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66638004] [2022-07-23 13:16:59,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66638004] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:16:59,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:16:59,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:16:59,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419190789] [2022-07-23 13:16:59,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:16:59,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:16:59,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:16:59,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:16:59,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:16:59,489 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-07-23 13:16:59,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:16:59,506 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-07-23 13:16:59,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:16:59,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2022-07-23 13:16:59,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:16:59,507 INFO L225 Difference]: With dead ends: 24 [2022-07-23 13:16:59,507 INFO L226 Difference]: Without dead ends: 23 [2022-07-23 13:16:59,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:16:59,508 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:16:59,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 48 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:16:59,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-23 13:16:59,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-23 13:16:59,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 22 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) [2022-07-23 13:16:59,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-07-23 13:16:59,512 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 9 [2022-07-23 13:16:59,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:16:59,512 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-07-23 13:16:59,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-07-23 13:16:59,513 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-07-23 13:16:59,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-23 13:16:59,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:16:59,525 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-07-23 13:16:59,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 13:16:59,525 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-23 13:16:59,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:16:59,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-07-23 13:16:59,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:16:59,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835635852] [2022-07-23 13:16:59,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:16:59,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:16:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:16:59,570 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:16:59,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:16:59,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835635852] [2022-07-23 13:16:59,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835635852] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:16:59,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732771348] [2022-07-23 13:16:59,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:16:59,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:16:59,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:16:59,573 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) [2022-07-23 13:16:59,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 13:16:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:16:59,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 13:16:59,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:16:59,658 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:16:59,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:16:59,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732771348] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:16:59,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:16:59,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-07-23 13:16:59,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162719203] [2022-07-23 13:16:59,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:16:59,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:16:59,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:16:59,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:16:59,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:16:59,661 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-07-23 13:16:59,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:16:59,693 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-07-23 13:16:59,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:16:59,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2022-07-23 13:16:59,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:16:59,695 INFO L225 Difference]: With dead ends: 23 [2022-07-23 13:16:59,695 INFO L226 Difference]: Without dead ends: 22 [2022-07-23 13:16:59,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 13:16:59,701 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 19 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:16:59,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 48 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:16:59,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-23 13:16:59,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2022-07-23 13:16:59,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 18 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) [2022-07-23 13:16:59,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-07-23 13:16:59,710 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 10 [2022-07-23 13:16:59,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:16:59,710 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-07-23 13:16:59,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-07-23 13:16:59,710 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-07-23 13:16:59,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-23 13:16:59,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:16:59,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:16:59,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 13:16:59,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:16:59,928 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-23 13:16:59,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:16:59,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1576310017, now seen corresponding path program 1 times [2022-07-23 13:16:59,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:16:59,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595126404] [2022-07-23 13:16:59,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:16:59,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:16:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:16:59,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:16:59,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:16:59,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595126404] [2022-07-23 13:16:59,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595126404] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:16:59,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030171771] [2022-07-23 13:16:59,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:16:59,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:16:59,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:16:59,993 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) [2022-07-23 13:17:00,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 13:17:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:17:00,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:17:00,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:17:00,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:00,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:17:00,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:00,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030171771] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:17:00,169 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:17:00,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-07-23 13:17:00,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978423797] [2022-07-23 13:17:00,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:17:00,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 13:17:00,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:17:00,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 13:17:00,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-23 13:17:00,175 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 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) [2022-07-23 13:17:00,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:17:00,233 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2022-07-23 13:17:00,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 13:17:00,234 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 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 [2022-07-23 13:17:00,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:17:00,235 INFO L225 Difference]: With dead ends: 39 [2022-07-23 13:17:00,235 INFO L226 Difference]: Without dead ends: 27 [2022-07-23 13:17:00,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-23 13:17:00,253 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:17:00,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 49 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:17:00,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-07-23 13:17:00,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-07-23 13:17:00,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 26 states have internal predecessors, (30), 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) [2022-07-23 13:17:00,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-07-23 13:17:00,262 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 12 [2022-07-23 13:17:00,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:17:00,263 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-07-23 13:17:00,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 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) [2022-07-23 13:17:00,263 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-07-23 13:17:00,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-23 13:17:00,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:17:00,264 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:17:00,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-23 13:17:00,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-07-23 13:17:00,484 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-23 13:17:00,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:17:00,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1440162055, now seen corresponding path program 2 times [2022-07-23 13:17:00,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:17:00,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958312708] [2022-07-23 13:17:00,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:17:00,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:17:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:17:00,520 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-23 13:17:00,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:17:00,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958312708] [2022-07-23 13:17:00,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958312708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:17:00,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:17:00,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:17:00,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207874662] [2022-07-23 13:17:00,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:17:00,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:17:00,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:17:00,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:17:00,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:17:00,522 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-07-23 13:17:00,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:17:00,542 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-07-23 13:17:00,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:17:00,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 20 [2022-07-23 13:17:00,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:17:00,543 INFO L225 Difference]: With dead ends: 39 [2022-07-23 13:17:00,543 INFO L226 Difference]: Without dead ends: 37 [2022-07-23 13:17:00,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:17:00,544 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 9 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:17:00,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 34 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:17:00,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-23 13:17:00,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2022-07-23 13:17:00,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 34 states have internal predecessors, (42), 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) [2022-07-23 13:17:00,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-07-23 13:17:00,561 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 20 [2022-07-23 13:17:00,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:17:00,562 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-07-23 13:17:00,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-07-23 13:17:00,562 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-07-23 13:17:00,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-23 13:17:00,562 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:17:00,562 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:17:00,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 13:17:00,562 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-23 13:17:00,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:17:00,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1440162247, now seen corresponding path program 1 times [2022-07-23 13:17:00,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:17:00,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106158651] [2022-07-23 13:17:00,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:17:00,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:17:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:17:00,666 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:00,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:17:00,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106158651] [2022-07-23 13:17:00,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106158651] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:17:00,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404660211] [2022-07-23 13:17:00,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:17:00,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:17:00,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:17:00,684 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) [2022-07-23 13:17:00,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 13:17:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:17:00,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 13:17:00,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:17:00,800 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:00,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:17:00,870 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:00,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404660211] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:17:00,871 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:17:00,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-07-23 13:17:00,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284673155] [2022-07-23 13:17:00,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:17:00,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-23 13:17:00,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:17:00,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-23 13:17:00,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-07-23 13:17:00,873 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 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) [2022-07-23 13:17:00,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:17:00,945 INFO L93 Difference]: Finished difference Result 71 states and 88 transitions. [2022-07-23 13:17:00,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-23 13:17:00,945 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 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 20 [2022-07-23 13:17:00,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:17:00,946 INFO L225 Difference]: With dead ends: 71 [2022-07-23 13:17:00,946 INFO L226 Difference]: Without dead ends: 51 [2022-07-23 13:17:00,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-07-23 13:17:00,947 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 33 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:17:00,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 111 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:17:00,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-23 13:17:00,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-23 13:17:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 50 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) [2022-07-23 13:17:00,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2022-07-23 13:17:00,966 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 20 [2022-07-23 13:17:00,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:17:00,966 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2022-07-23 13:17:00,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 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) [2022-07-23 13:17:00,967 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2022-07-23 13:17:00,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-23 13:17:00,967 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:17:00,967 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:17:00,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-23 13:17:01,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:17:01,184 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)] === [2022-07-23 13:17:01,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:17:01,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1587475927, now seen corresponding path program 2 times [2022-07-23 13:17:01,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:17:01,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364996044] [2022-07-23 13:17:01,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:17:01,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:17:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:17:01,315 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:01,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:17:01,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364996044] [2022-07-23 13:17:01,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364996044] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:17:01,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318060973] [2022-07-23 13:17:01,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:17:01,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:17:01,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:17:01,317 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) [2022-07-23 13:17:01,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 13:17:01,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 13:17:01,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:17:01,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-23 13:17:01,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:17:01,413 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:01,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:17:01,647 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:01,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318060973] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:17:01,648 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:17:01,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-07-23 13:17:01,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803763959] [2022-07-23 13:17:01,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:17:01,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-07-23 13:17:01,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:17:01,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-07-23 13:17:01,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-07-23 13:17:01,650 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 34 states have internal predecessors, (71), 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) [2022-07-23 13:17:01,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:17:01,881 INFO L93 Difference]: Finished difference Result 103 states and 124 transitions. [2022-07-23 13:17:01,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-23 13:17:01,882 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 34 states have internal predecessors, (71), 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 36 [2022-07-23 13:17:01,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:17:01,883 INFO L225 Difference]: With dead ends: 103 [2022-07-23 13:17:01,883 INFO L226 Difference]: Without dead ends: 83 [2022-07-23 13:17:01,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-07-23 13:17:01,885 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 99 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:17:01,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 111 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:17:01,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-07-23 13:17:01,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-07-23 13:17:01,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 79 states have (on average 1.139240506329114) internal successors, (90), 82 states have internal predecessors, (90), 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) [2022-07-23 13:17:01,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 90 transitions. [2022-07-23 13:17:01,891 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 90 transitions. Word has length 36 [2022-07-23 13:17:01,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:17:01,891 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 90 transitions. [2022-07-23 13:17:01,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 34 states have internal predecessors, (71), 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) [2022-07-23 13:17:01,892 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2022-07-23 13:17:01,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-23 13:17:01,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:17:01,893 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:17:01,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-23 13:17:02,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:17:02,127 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-23 13:17:02,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:17:02,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1641037303, now seen corresponding path program 3 times [2022-07-23 13:17:02,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:17:02,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36420277] [2022-07-23 13:17:02,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:17:02,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:17:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:17:02,546 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:02,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:17:02,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36420277] [2022-07-23 13:17:02,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36420277] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:17:02,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765778088] [2022-07-23 13:17:02,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-23 13:17:02,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:17:02,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:17:02,551 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) [2022-07-23 13:17:02,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 13:17:02,721 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2022-07-23 13:17:02,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:17:02,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 32 conjunts are in the unsatisfiable core [2022-07-23 13:17:02,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:17:02,824 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:02,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:17:03,529 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:03,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765778088] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:17:03,530 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:17:03,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-07-23 13:17:03,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046556575] [2022-07-23 13:17:03,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:17:03,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-07-23 13:17:03,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:17:03,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-07-23 13:17:03,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-07-23 13:17:03,533 INFO L87 Difference]: Start difference. First operand 83 states and 90 transitions. Second operand has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 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) [2022-07-23 13:17:04,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:17:04,154 INFO L93 Difference]: Finished difference Result 167 states and 196 transitions. [2022-07-23 13:17:04,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-07-23 13:17:04,154 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 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 68 [2022-07-23 13:17:04,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:17:04,155 INFO L225 Difference]: With dead ends: 167 [2022-07-23 13:17:04,155 INFO L226 Difference]: Without dead ends: 147 [2022-07-23 13:17:04,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1991 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2595, Invalid=6525, Unknown=0, NotChecked=0, Total=9120 [2022-07-23 13:17:04,159 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 199 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:17:04,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 140 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:17:04,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-07-23 13:17:04,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2022-07-23 13:17:04,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 143 states have (on average 1.0769230769230769) internal successors, (154), 146 states have internal predecessors, (154), 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) [2022-07-23 13:17:04,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 154 transitions. [2022-07-23 13:17:04,166 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 154 transitions. Word has length 68 [2022-07-23 13:17:04,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:17:04,167 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 154 transitions. [2022-07-23 13:17:04,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 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) [2022-07-23 13:17:04,167 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 154 transitions. [2022-07-23 13:17:04,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-23 13:17:04,169 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:17:04,169 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:17:04,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-23 13:17:04,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:17:04,388 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-23 13:17:04,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:17:04,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1438207543, now seen corresponding path program 4 times [2022-07-23 13:17:04,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:17:04,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322472197] [2022-07-23 13:17:04,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:17:04,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:17:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:17:05,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:05,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:17:05,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322472197] [2022-07-23 13:17:05,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322472197] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:17:05,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280997637] [2022-07-23 13:17:05,373 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-23 13:17:05,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:17:05,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:17:05,388 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) [2022-07-23 13:17:05,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-23 13:17:05,482 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-23 13:17:05,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:17:05,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 64 conjunts are in the unsatisfiable core [2022-07-23 13:17:05,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:17:05,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:05,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:17:08,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:08,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280997637] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:17:08,305 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:17:08,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-07-23 13:17:08,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476321065] [2022-07-23 13:17:08,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:17:08,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-07-23 13:17:08,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:17:08,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-07-23 13:17:08,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-07-23 13:17:08,320 INFO L87 Difference]: Start difference. First operand 147 states and 154 transitions. Second operand has 130 states, 130 states have (on average 2.023076923076923) internal successors, (263), 130 states have internal predecessors, (263), 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) [2022-07-23 13:17:10,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:17:10,411 INFO L93 Difference]: Finished difference Result 295 states and 340 transitions. [2022-07-23 13:17:10,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-07-23 13:17:10,412 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.023076923076923) internal successors, (263), 130 states have internal predecessors, (263), 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 132 [2022-07-23 13:17:10,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:17:10,413 INFO L225 Difference]: With dead ends: 295 [2022-07-23 13:17:10,413 INFO L226 Difference]: Without dead ends: 275 [2022-07-23 13:17:10,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-07-23 13:17:10,422 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 677 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 13:17:10,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 159 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 13:17:10,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-07-23 13:17:10,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2022-07-23 13:17:10,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 271 states have (on average 1.040590405904059) internal successors, (282), 274 states have internal predecessors, (282), 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) [2022-07-23 13:17:10,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 282 transitions. [2022-07-23 13:17:10,443 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 282 transitions. Word has length 132 [2022-07-23 13:17:10,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:17:10,443 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 282 transitions. [2022-07-23 13:17:10,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.023076923076923) internal successors, (263), 130 states have internal predecessors, (263), 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) [2022-07-23 13:17:10,444 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 282 transitions. [2022-07-23 13:17:10,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-07-23 13:17:10,446 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:17:10,446 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:17:10,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-23 13:17:10,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:17:10,672 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)] === [2022-07-23 13:17:10,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:17:10,674 INFO L85 PathProgramCache]: Analyzing trace with hash 732262071, now seen corresponding path program 5 times [2022-07-23 13:17:10,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:17:10,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090668863] [2022-07-23 13:17:10,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:17:10,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:17:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:17:14,694 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:17:14,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:17:14,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090668863] [2022-07-23 13:17:14,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090668863] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:17:14,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894381911] [2022-07-23 13:17:14,695 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-23 13:17:14,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:17:14,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:17:14,700 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) [2022-07-23 13:17:14,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-23 13:19:59,695 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 64 check-sat command(s) [2022-07-23 13:19:59,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:19:59,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 128 conjunts are in the unsatisfiable core [2022-07-23 13:19:59,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:20:00,169 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:20:00,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:20:08,615 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:20:08,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894381911] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:20:08,623 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:20:08,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2022-07-23 13:20:08,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51211109] [2022-07-23 13:20:08,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:20:08,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2022-07-23 13:20:08,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:20:08,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2022-07-23 13:20:08,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2022-07-23 13:20:08,643 INFO L87 Difference]: Start difference. First operand 275 states and 282 transitions. Second operand has 258 states, 258 states have (on average 2.011627906976744) internal successors, (519), 258 states have internal predecessors, (519), 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) [2022-07-23 13:20:16,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:20:16,427 INFO L93 Difference]: Finished difference Result 551 states and 628 transitions. [2022-07-23 13:20:16,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-07-23 13:20:16,428 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 2.011627906976744) internal successors, (519), 258 states have internal predecessors, (519), 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 260 [2022-07-23 13:20:16,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:20:16,430 INFO L225 Difference]: With dead ends: 551 [2022-07-23 13:20:16,431 INFO L226 Difference]: Without dead ends: 531 [2022-07-23 13:20:16,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 773 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32567 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=41091, Invalid=105981, Unknown=0, NotChecked=0, Total=147072 [2022-07-23 13:20:16,439 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1075 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 13:20:16,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 156 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 13:20:16,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-07-23 13:20:16,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2022-07-23 13:20:16,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 527 states have (on average 1.0208728652751422) internal successors, (538), 530 states have internal predecessors, (538), 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) [2022-07-23 13:20:16,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 538 transitions. [2022-07-23 13:20:16,455 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 538 transitions. Word has length 260 [2022-07-23 13:20:16,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:20:16,455 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 538 transitions. [2022-07-23 13:20:16,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 2.011627906976744) internal successors, (519), 258 states have internal predecessors, (519), 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) [2022-07-23 13:20:16,456 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 538 transitions. [2022-07-23 13:20:16,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2022-07-23 13:20:16,462 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:20:16,463 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:20:16,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-23 13:20:16,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:20:16,681 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-23 13:20:16,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:20:16,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1340452791, now seen corresponding path program 6 times [2022-07-23 13:20:16,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:20:16,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990299193] [2022-07-23 13:20:16,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:20:16,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:20:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:20:27,142 INFO L134 CoverageAnalysis]: Checked inductivity of 32131 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:20:27,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:20:27,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990299193] [2022-07-23 13:20:27,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990299193] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:20:27,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057934336] [2022-07-23 13:20:27,143 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-23 13:20:27,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:20:27,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:20:27,144 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) [2022-07-23 13:20:27,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process