./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/twisted.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c 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-numeric/twisted.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 1b68c797f7da07f29717590596e5fa31674f85e16d7b32a9335da92aff43a272 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:08:19,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:08:19,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:08:19,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:08:19,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:08:19,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:08:19,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:08:19,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:08:19,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:08:19,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:08:19,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:08:19,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:08:19,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:08:19,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:08:19,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:08:19,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:08:19,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:08:19,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:08:19,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:08:19,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:08:19,878 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:08:19,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:08:19,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:08:19,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:08:19,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:08:19,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:08:19,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:08:19,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:08:19,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:08:19,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:08:19,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:08:19,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:08:19,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:08:19,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:08:19,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:08:19,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:08:19,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:08:19,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:08:19,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:08:19,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:08:19,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:08:19,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:08:19,903 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-13 02:08:19,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:08:19,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:08:19,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:08:19,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:08:19,939 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:08:19,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:08:19,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:08:19,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:08:19,940 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:08:19,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:08:19,941 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:08:19,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:08:19,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:08:19,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:08:19,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:08:19,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:08:19,942 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:08:19,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:08:19,943 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:08:19,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:08:19,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:08:19,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:08:19,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:08:19,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:08:19,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:08:19,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:08:19,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:08:19,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:08:19,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:08:19,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:08:19,946 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b68c797f7da07f29717590596e5fa31674f85e16d7b32a9335da92aff43a272 [2022-07-13 02:08:20,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:08:20,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:08:20,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:08:20,222 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:08:20,223 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:08:20,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/twisted.c [2022-07-13 02:08:20,304 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98b4a9aa/8e55e9c7325b42878453d256c2950013/FLAGe7e26050a [2022-07-13 02:08:20,690 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:08:20,691 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/twisted.c [2022-07-13 02:08:20,696 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98b4a9aa/8e55e9c7325b42878453d256c2950013/FLAGe7e26050a [2022-07-13 02:08:21,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98b4a9aa/8e55e9c7325b42878453d256c2950013 [2022-07-13 02:08:21,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:08:21,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:08:21,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:08:21,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:08:21,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:08:21,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:08:21" (1/1) ... [2022-07-13 02:08:21,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6caaf228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:08:21, skipping insertion in model container [2022-07-13 02:08:21,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:08:21" (1/1) ... [2022-07-13 02:08:21,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:08:21,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:08:21,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:08:21,232 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:08:21,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:08:21,259 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:08:21,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:08:21 WrapperNode [2022-07-13 02:08:21,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:08:21,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:08:21,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:08:21,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:08:21,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:08:21" (1/1) ... [2022-07-13 02:08:21,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:08:21" (1/1) ... [2022-07-13 02:08:21,294 INFO L137 Inliner]: procedures = 5, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2022-07-13 02:08:21,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:08:21,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:08:21,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:08:21,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:08:21,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:08:21" (1/1) ... [2022-07-13 02:08:21,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:08:21" (1/1) ... [2022-07-13 02:08:21,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:08:21" (1/1) ... [2022-07-13 02:08:21,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:08:21" (1/1) ... [2022-07-13 02:08:21,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:08:21" (1/1) ... [2022-07-13 02:08:21,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:08:21" (1/1) ... [2022-07-13 02:08:21,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:08:21" (1/1) ... [2022-07-13 02:08:21,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:08:21,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:08:21,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:08:21,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:08:21,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:08:21" (1/1) ... [2022-07-13 02:08:21,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:08:21,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:21,357 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) [2022-07-13 02:08:21,364 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 [2022-07-13 02:08:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:08:21,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:08:21,458 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:08:21,460 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:08:21,547 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:08:21,554 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:08:21,554 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 02:08:21,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:08:21 BoogieIcfgContainer [2022-07-13 02:08:21,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:08:21,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:08:21,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:08:21,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:08:21,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:08:21" (1/3) ... [2022-07-13 02:08:21,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7618552a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:08:21, skipping insertion in model container [2022-07-13 02:08:21,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:08:21" (2/3) ... [2022-07-13 02:08:21,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7618552a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:08:21, skipping insertion in model container [2022-07-13 02:08:21,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:08:21" (3/3) ... [2022-07-13 02:08:21,564 INFO L111 eAbstractionObserver]: Analyzing ICFG twisted.c [2022-07-13 02:08:21,579 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:08:21,579 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-13 02:08:21,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:08:21,641 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@27359813, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6e7d3989 [2022-07-13 02:08:21,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-13 02:08:21,646 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) [2022-07-13 02:08:21,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-13 02:08:21,665 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:21,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-13 02:08:21,667 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)] === [2022-07-13 02:08:21,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:21,672 INFO L85 PathProgramCache]: Analyzing trace with hash 28694852, now seen corresponding path program 1 times [2022-07-13 02:08:21,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:21,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259974708] [2022-07-13 02:08:21,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:21,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:21,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:21,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259974708] [2022-07-13 02:08:21,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259974708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:08:21,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:08:21,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:08:21,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712813570] [2022-07-13 02:08:21,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:08:21,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:08:21,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:21,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:08:21,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:08:21,923 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) [2022-07-13 02:08:22,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:22,022 INFO L93 Difference]: Finished difference Result 66 states and 81 transitions. [2022-07-13 02:08:22,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:08:22,024 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 [2022-07-13 02:08:22,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:22,031 INFO L225 Difference]: With dead ends: 66 [2022-07-13 02:08:22,031 INFO L226 Difference]: Without dead ends: 36 [2022-07-13 02:08:22,033 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 [2022-07-13 02:08:22,044 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:22,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 45 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:08:22,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-07-13 02:08:22,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2022-07-13 02:08:22,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:22,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2022-07-13 02:08:22,077 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 5 [2022-07-13 02:08:22,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:22,078 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2022-07-13 02:08:22,078 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) [2022-07-13 02:08:22,078 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2022-07-13 02:08:22,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:08:22,079 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:22,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:08:22,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:08:22,079 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:22,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:22,080 INFO L85 PathProgramCache]: Analyzing trace with hash 889540457, now seen corresponding path program 1 times [2022-07-13 02:08:22,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:22,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787724878] [2022-07-13 02:08:22,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:22,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:22,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:22,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:22,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787724878] [2022-07-13 02:08:22,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787724878] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:08:22,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:08:22,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:08:22,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769237945] [2022-07-13 02:08:22,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:08:22,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:08:22,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:22,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:08:22,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:08:22,120 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:22,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:22,170 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2022-07-13 02:08:22,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:08:22,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-13 02:08:22,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:22,172 INFO L225 Difference]: With dead ends: 28 [2022-07-13 02:08:22,172 INFO L226 Difference]: Without dead ends: 27 [2022-07-13 02:08:22,172 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 [2022-07-13 02:08:22,174 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 19 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:22,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 20 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:08:22,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-07-13 02:08:22,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-07-13 02:08:22,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 26 states have internal predecessors, (35), 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) [2022-07-13 02:08:22,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-07-13 02:08:22,182 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 6 [2022-07-13 02:08:22,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:22,182 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-07-13 02:08:22,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:22,183 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2022-07-13 02:08:22,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 02:08:22,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:22,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:22,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:08:22,184 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:22,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:22,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1805903811, now seen corresponding path program 1 times [2022-07-13 02:08:22,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:22,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820416018] [2022-07-13 02:08:22,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:22,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:22,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:22,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:22,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820416018] [2022-07-13 02:08:22,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820416018] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:08:22,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:08:22,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:08:22,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537764231] [2022-07-13 02:08:22,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:08:22,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:08:22,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:22,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:08:22,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:08:22,227 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:22,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:22,266 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2022-07-13 02:08:22,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:08:22,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-13 02:08:22,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:22,268 INFO L225 Difference]: With dead ends: 40 [2022-07-13 02:08:22,268 INFO L226 Difference]: Without dead ends: 39 [2022-07-13 02:08:22,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:08:22,270 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:22,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 24 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:08:22,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-13 02:08:22,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2022-07-13 02:08:22,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 31 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) [2022-07-13 02:08:22,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2022-07-13 02:08:22,277 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 7 [2022-07-13 02:08:22,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:22,277 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2022-07-13 02:08:22,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:22,278 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2022-07-13 02:08:22,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 02:08:22,278 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:22,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:22,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:08:22,279 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)] === [2022-07-13 02:08:22,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:22,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1805903861, now seen corresponding path program 1 times [2022-07-13 02:08:22,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:22,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128791400] [2022-07-13 02:08:22,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:22,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:22,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:22,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:22,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128791400] [2022-07-13 02:08:22,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128791400] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:08:22,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:08:22,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:08:22,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444925415] [2022-07-13 02:08:22,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:08:22,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:08:22,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:22,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:08:22,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:08:22,306 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:22,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:22,367 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2022-07-13 02:08:22,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:08:22,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-13 02:08:22,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:22,371 INFO L225 Difference]: With dead ends: 50 [2022-07-13 02:08:22,372 INFO L226 Difference]: Without dead ends: 49 [2022-07-13 02:08:22,372 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 [2022-07-13 02:08:22,374 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 41 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 [2022-07-13 02:08:22,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 41 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:08:22,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-07-13 02:08:22,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2022-07-13 02:08:22,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 36 states have (on average 1.5277777777777777) internal successors, (55), 40 states have internal predecessors, (55), 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) [2022-07-13 02:08:22,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2022-07-13 02:08:22,394 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 7 [2022-07-13 02:08:22,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:22,395 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2022-07-13 02:08:22,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:22,395 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2022-07-13 02:08:22,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 02:08:22,396 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:22,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:22,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 02:08:22,396 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:22,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:22,397 INFO L85 PathProgramCache]: Analyzing trace with hash 148443370, now seen corresponding path program 1 times [2022-07-13 02:08:22,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:22,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961777427] [2022-07-13 02:08:22,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:22,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:22,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:22,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:22,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961777427] [2022-07-13 02:08:22,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961777427] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:08:22,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:08:22,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:08:22,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643740894] [2022-07-13 02:08:22,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:08:22,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:08:22,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:22,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:08:22,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:08:22,444 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:22,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:22,492 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2022-07-13 02:08:22,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:08:22,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-13 02:08:22,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:22,495 INFO L225 Difference]: With dead ends: 46 [2022-07-13 02:08:22,496 INFO L226 Difference]: Without dead ends: 43 [2022-07-13 02:08:22,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:08:22,498 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:22,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 25 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:08:22,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-07-13 02:08:22,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2022-07-13 02:08:22,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 39 states have internal predecessors, (53), 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) [2022-07-13 02:08:22,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 53 transitions. [2022-07-13 02:08:22,510 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 53 transitions. Word has length 8 [2022-07-13 02:08:22,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:22,510 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 53 transitions. [2022-07-13 02:08:22,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:22,511 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions. [2022-07-13 02:08:22,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 02:08:22,511 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:22,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:22,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 02:08:22,513 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:22,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:22,513 INFO L85 PathProgramCache]: Analyzing trace with hash 148444908, now seen corresponding path program 1 times [2022-07-13 02:08:22,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:22,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990735056] [2022-07-13 02:08:22,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:22,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:22,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:22,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:22,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990735056] [2022-07-13 02:08:22,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990735056] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:08:22,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:08:22,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:08:22,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616837312] [2022-07-13 02:08:22,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:08:22,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:08:22,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:22,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:08:22,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:08:22,557 INFO L87 Difference]: Start difference. First operand 40 states and 53 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:22,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:22,579 INFO L93 Difference]: Finished difference Result 40 states and 53 transitions. [2022-07-13 02:08:22,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:08:22,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-13 02:08:22,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:22,580 INFO L225 Difference]: With dead ends: 40 [2022-07-13 02:08:22,580 INFO L226 Difference]: Without dead ends: 39 [2022-07-13 02:08:22,581 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 [2022-07-13 02:08:22,582 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:22,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 26 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:08:22,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-13 02:08:22,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-07-13 02:08:22,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.457142857142857) internal successors, (51), 38 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:22,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2022-07-13 02:08:22,594 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 8 [2022-07-13 02:08:22,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:22,595 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions. [2022-07-13 02:08:22,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:22,595 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2022-07-13 02:08:22,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:08:22,596 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:22,596 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:22,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 02:08:22,596 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:22,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:22,597 INFO L85 PathProgramCache]: Analyzing trace with hash 351585609, now seen corresponding path program 1 times [2022-07-13 02:08:22,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:22,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427464371] [2022-07-13 02:08:22,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:22,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:22,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:22,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:22,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427464371] [2022-07-13 02:08:22,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427464371] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:22,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973009110] [2022-07-13 02:08:22,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:22,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:22,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:22,647 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) [2022-07-13 02:08:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:22,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 02:08:22,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 02:08:22,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:22,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:22,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:22,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973009110] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:22,769 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:22,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-07-13 02:08:22,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911304899] [2022-07-13 02:08:22,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:22,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 02:08:22,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:22,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 02:08:22,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 02:08:22,771 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 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) [2022-07-13 02:08:22,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:22,882 INFO L93 Difference]: Finished difference Result 113 states and 146 transitions. [2022-07-13 02:08:22,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 02:08:22,883 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 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 [2022-07-13 02:08:22,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:22,884 INFO L225 Difference]: With dead ends: 113 [2022-07-13 02:08:22,884 INFO L226 Difference]: Without dead ends: 112 [2022-07-13 02:08:22,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-13 02:08:22,886 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 112 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:22,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 50 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:08:22,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-07-13 02:08:22,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 74. [2022-07-13 02:08:22,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 70 states have (on average 1.457142857142857) internal successors, (102), 73 states have internal predecessors, (102), 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) [2022-07-13 02:08:22,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2022-07-13 02:08:22,898 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 9 [2022-07-13 02:08:22,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:22,898 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2022-07-13 02:08:22,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 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) [2022-07-13 02:08:22,899 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2022-07-13 02:08:22,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-13 02:08:22,899 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:22,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:22,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:23,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:23,118 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)] === [2022-07-13 02:08:23,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:23,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1985673441, now seen corresponding path program 1 times [2022-07-13 02:08:23,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:23,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671057439] [2022-07-13 02:08:23,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:23,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:23,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:23,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:23,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671057439] [2022-07-13 02:08:23,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671057439] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:08:23,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:08:23,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:08:23,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317778678] [2022-07-13 02:08:23,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:08:23,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:08:23,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:23,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:08:23,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:08:23,185 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2022-07-13 02:08:23,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:23,245 INFO L93 Difference]: Finished difference Result 80 states and 108 transitions. [2022-07-13 02:08:23,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:08:23,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 [2022-07-13 02:08:23,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:23,251 INFO L225 Difference]: With dead ends: 80 [2022-07-13 02:08:23,251 INFO L226 Difference]: Without dead ends: 79 [2022-07-13 02:08:23,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:08:23,254 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:23,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 32 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:08:23,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-07-13 02:08:23,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 75. [2022-07-13 02:08:23,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 71 states have (on average 1.4507042253521127) internal successors, (103), 74 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:23,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2022-07-13 02:08:23,279 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 10 [2022-07-13 02:08:23,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:23,281 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2022-07-13 02:08:23,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2022-07-13 02:08:23,281 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2022-07-13 02:08:23,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:08:23,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:23,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:23,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 02:08:23,283 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)] === [2022-07-13 02:08:23,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:23,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1493993400, now seen corresponding path program 1 times [2022-07-13 02:08:23,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:23,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530284444] [2022-07-13 02:08:23,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:23,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:23,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:23,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:23,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530284444] [2022-07-13 02:08:23,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530284444] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:23,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367993326] [2022-07-13 02:08:23,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:23,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:23,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:23,348 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) [2022-07-13 02:08:23,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 02:08:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:23,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 02:08:23,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:23,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:23,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:23,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367993326] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:23,515 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:23,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-07-13 02:08:23,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224211206] [2022-07-13 02:08:23,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:23,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 02:08:23,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:23,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 02:08:23,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-13 02:08:23,517 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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) [2022-07-13 02:08:23,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:23,663 INFO L93 Difference]: Finished difference Result 120 states and 160 transitions. [2022-07-13 02:08:23,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 02:08:23,664 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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 11 [2022-07-13 02:08:23,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:23,664 INFO L225 Difference]: With dead ends: 120 [2022-07-13 02:08:23,665 INFO L226 Difference]: Without dead ends: 119 [2022-07-13 02:08:23,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2022-07-13 02:08:23,665 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 74 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:23,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 54 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:08:23,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-07-13 02:08:23,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 93. [2022-07-13 02:08:23,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.4719101123595506) internal successors, (131), 92 states have internal predecessors, (131), 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) [2022-07-13 02:08:23,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 131 transitions. [2022-07-13 02:08:23,685 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 131 transitions. Word has length 11 [2022-07-13 02:08:23,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:23,685 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 131 transitions. [2022-07-13 02:08:23,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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) [2022-07-13 02:08:23,685 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 131 transitions. [2022-07-13 02:08:23,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:08:23,686 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:23,686 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:23,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:23,903 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,SelfDestructingSolverStorable8 [2022-07-13 02:08:23,903 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:23,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:23,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1493993350, now seen corresponding path program 1 times [2022-07-13 02:08:23,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:23,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718531632] [2022-07-13 02:08:23,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:23,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:23,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:23,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:23,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718531632] [2022-07-13 02:08:23,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718531632] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:23,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977221992] [2022-07-13 02:08:23,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:23,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:23,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:23,938 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) [2022-07-13 02:08:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:23,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 02:08:23,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:23,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 02:08:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:23,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:24,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:24,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977221992] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:24,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:24,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-07-13 02:08:24,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775126903] [2022-07-13 02:08:24,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:24,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 02:08:24,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:24,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 02:08:24,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 02:08:24,020 INFO L87 Difference]: Start difference. First operand 93 states and 131 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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) [2022-07-13 02:08:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:24,105 INFO L93 Difference]: Finished difference Result 254 states and 355 transitions. [2022-07-13 02:08:24,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 02:08:24,105 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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 11 [2022-07-13 02:08:24,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:24,107 INFO L225 Difference]: With dead ends: 254 [2022-07-13 02:08:24,107 INFO L226 Difference]: Without dead ends: 253 [2022-07-13 02:08:24,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-13 02:08:24,108 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 98 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:24,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 87 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:08:24,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-07-13 02:08:24,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 227. [2022-07-13 02:08:24,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 223 states have (on average 1.4394618834080717) internal successors, (321), 226 states have internal predecessors, (321), 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) [2022-07-13 02:08:24,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 321 transitions. [2022-07-13 02:08:24,125 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 321 transitions. Word has length 11 [2022-07-13 02:08:24,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:24,126 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 321 transitions. [2022-07-13 02:08:24,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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) [2022-07-13 02:08:24,126 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 321 transitions. [2022-07-13 02:08:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:08:24,127 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:24,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:24,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-13 02:08:24,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:24,350 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:24,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:24,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1426334450, now seen corresponding path program 1 times [2022-07-13 02:08:24,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:24,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094597525] [2022-07-13 02:08:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:24,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:24,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:24,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:24,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094597525] [2022-07-13 02:08:24,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094597525] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:08:24,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:08:24,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:08:24,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689634039] [2022-07-13 02:08:24,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:08:24,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:08:24,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:24,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:08:24,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:08:24,389 INFO L87 Difference]: Start difference. First operand 227 states and 321 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-07-13 02:08:24,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:24,443 INFO L93 Difference]: Finished difference Result 231 states and 325 transitions. [2022-07-13 02:08:24,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:08:24,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2022-07-13 02:08:24,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:24,445 INFO L225 Difference]: With dead ends: 231 [2022-07-13 02:08:24,445 INFO L226 Difference]: Without dead ends: 228 [2022-07-13 02:08:24,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:08:24,447 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:24,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 33 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:08:24,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-07-13 02:08:24,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-07-13 02:08:24,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 224 states have (on average 1.4330357142857142) internal successors, (321), 227 states have internal predecessors, (321), 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) [2022-07-13 02:08:24,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 321 transitions. [2022-07-13 02:08:24,460 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 321 transitions. Word has length 11 [2022-07-13 02:08:24,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:24,461 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 321 transitions. [2022-07-13 02:08:24,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-07-13 02:08:24,461 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 321 transitions. [2022-07-13 02:08:24,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 02:08:24,462 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:24,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:24,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 02:08:24,463 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:24,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:24,463 INFO L85 PathProgramCache]: Analyzing trace with hash 930844933, now seen corresponding path program 1 times [2022-07-13 02:08:24,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:24,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567125610] [2022-07-13 02:08:24,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:24,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:24,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:24,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:24,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567125610] [2022-07-13 02:08:24,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567125610] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:24,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567376150] [2022-07-13 02:08:24,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:24,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:24,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:24,501 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) [2022-07-13 02:08:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:24,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 02:08:24,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:24,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 02:08:24,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:24,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:08:24,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567376150] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:08:24,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:08:24,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-07-13 02:08:24,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095753749] [2022-07-13 02:08:24,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:08:24,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:08:24,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:24,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:08:24,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-13 02:08:24,620 INFO L87 Difference]: Start difference. First operand 228 states and 321 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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) [2022-07-13 02:08:24,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:24,678 INFO L93 Difference]: Finished difference Result 256 states and 354 transitions. [2022-07-13 02:08:24,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:08:24,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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 12 [2022-07-13 02:08:24,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:24,680 INFO L225 Difference]: With dead ends: 256 [2022-07-13 02:08:24,680 INFO L226 Difference]: Without dead ends: 253 [2022-07-13 02:08:24,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-07-13 02:08:24,681 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 21 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:24,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 33 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:08:24,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-07-13 02:08:24,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 242. [2022-07-13 02:08:24,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 238 states have (on average 1.415966386554622) internal successors, (337), 241 states have internal predecessors, (337), 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) [2022-07-13 02:08:24,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 337 transitions. [2022-07-13 02:08:24,697 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 337 transitions. Word has length 12 [2022-07-13 02:08:24,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:24,697 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 337 transitions. [2022-07-13 02:08:24,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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) [2022-07-13 02:08:24,698 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 337 transitions. [2022-07-13 02:08:24,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-13 02:08:24,698 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:24,698 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:24,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:24,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:24,915 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:24,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:24,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1922968006, now seen corresponding path program 1 times [2022-07-13 02:08:24,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:24,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078220822] [2022-07-13 02:08:24,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:24,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:24,970 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:24,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:24,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078220822] [2022-07-13 02:08:24,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078220822] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:24,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632389824] [2022-07-13 02:08:24,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:24,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:24,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:24,972 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) [2022-07-13 02:08:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:24,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 02:08:25,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 02:08:25,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:25,078 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:25,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:25,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:25,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632389824] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:25,138 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:25,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-07-13 02:08:25,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483390749] [2022-07-13 02:08:25,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:25,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-13 02:08:25,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:25,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-13 02:08:25,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-07-13 02:08:25,140 INFO L87 Difference]: Start difference. First operand 242 states and 337 transitions. Second operand has 17 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 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) [2022-07-13 02:08:25,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:25,225 INFO L93 Difference]: Finished difference Result 253 states and 348 transitions. [2022-07-13 02:08:25,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 02:08:25,226 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-13 02:08:25,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:25,227 INFO L225 Difference]: With dead ends: 253 [2022-07-13 02:08:25,227 INFO L226 Difference]: Without dead ends: 250 [2022-07-13 02:08:25,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2022-07-13 02:08:25,229 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 54 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:25,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 55 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:08:25,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-07-13 02:08:25,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 242. [2022-07-13 02:08:25,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 238 states have (on average 1.4075630252100841) internal successors, (335), 241 states have internal predecessors, (335), 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) [2022-07-13 02:08:25,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 335 transitions. [2022-07-13 02:08:25,243 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 335 transitions. Word has length 14 [2022-07-13 02:08:25,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:25,243 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 335 transitions. [2022-07-13 02:08:25,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 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) [2022-07-13 02:08:25,243 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 335 transitions. [2022-07-13 02:08:25,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-13 02:08:25,249 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:25,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:25,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:25,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-13 02:08:25,471 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:25,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:25,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1772254812, now seen corresponding path program 1 times [2022-07-13 02:08:25,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:25,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64558001] [2022-07-13 02:08:25,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:25,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:25,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:25,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:25,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64558001] [2022-07-13 02:08:25,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64558001] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:25,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138017183] [2022-07-13 02:08:25,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:25,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:25,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:25,544 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) [2022-07-13 02:08:25,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 02:08:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:25,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 02:08:25,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:25,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:25,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:25,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:25,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138017183] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:25,700 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:25,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-07-13 02:08:25,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319883635] [2022-07-13 02:08:25,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:25,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-13 02:08:25,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:25,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-13 02:08:25,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-07-13 02:08:25,702 INFO L87 Difference]: Start difference. First operand 242 states and 335 transitions. Second operand has 17 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 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) [2022-07-13 02:08:25,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:25,959 INFO L93 Difference]: Finished difference Result 313 states and 426 transitions. [2022-07-13 02:08:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-13 02:08:25,960 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-13 02:08:25,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:25,961 INFO L225 Difference]: With dead ends: 313 [2022-07-13 02:08:25,961 INFO L226 Difference]: Without dead ends: 311 [2022-07-13 02:08:25,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2022-07-13 02:08:25,963 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 147 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:25,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 46 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:08:25,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-07-13 02:08:25,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 265. [2022-07-13 02:08:25,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 261 states have (on average 1.4099616858237547) internal successors, (368), 264 states have internal predecessors, (368), 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) [2022-07-13 02:08:25,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 368 transitions. [2022-07-13 02:08:25,978 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 368 transitions. Word has length 14 [2022-07-13 02:08:25,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:25,979 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 368 transitions. [2022-07-13 02:08:25,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 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) [2022-07-13 02:08:25,979 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 368 transitions. [2022-07-13 02:08:25,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-13 02:08:25,980 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:25,980 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:26,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:26,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:26,198 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:26,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:26,198 INFO L85 PathProgramCache]: Analyzing trace with hash 894675753, now seen corresponding path program 1 times [2022-07-13 02:08:26,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:26,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802095711] [2022-07-13 02:08:26,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:26,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:26,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:26,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:26,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802095711] [2022-07-13 02:08:26,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802095711] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:26,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76090992] [2022-07-13 02:08:26,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:26,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:26,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:26,236 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) [2022-07-13 02:08:26,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 02:08:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:26,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 02:08:26,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:26,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:26,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:08:26,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76090992] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:08:26,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:08:26,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-07-13 02:08:26,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264846867] [2022-07-13 02:08:26,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:08:26,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 02:08:26,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:26,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 02:08:26,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:08:26,347 INFO L87 Difference]: Start difference. First operand 265 states and 368 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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) [2022-07-13 02:08:26,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:26,469 INFO L93 Difference]: Finished difference Result 430 states and 602 transitions. [2022-07-13 02:08:26,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 02:08:26,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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 15 [2022-07-13 02:08:26,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:26,471 INFO L225 Difference]: With dead ends: 430 [2022-07-13 02:08:26,471 INFO L226 Difference]: Without dead ends: 427 [2022-07-13 02:08:26,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-07-13 02:08:26,472 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 44 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:26,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 41 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:08:26,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-07-13 02:08:26,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 423. [2022-07-13 02:08:26,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 419 states have (on average 1.4128878281622912) internal successors, (592), 422 states have internal predecessors, (592), 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) [2022-07-13 02:08:26,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 592 transitions. [2022-07-13 02:08:26,494 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 592 transitions. Word has length 15 [2022-07-13 02:08:26,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:26,494 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 592 transitions. [2022-07-13 02:08:26,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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) [2022-07-13 02:08:26,495 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 592 transitions. [2022-07-13 02:08:26,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 02:08:26,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:26,495 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:26,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:26,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:26,712 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:26,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:26,712 INFO L85 PathProgramCache]: Analyzing trace with hash -220195594, now seen corresponding path program 1 times [2022-07-13 02:08:26,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:26,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194476481] [2022-07-13 02:08:26,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:26,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:26,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:26,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:26,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194476481] [2022-07-13 02:08:26,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194476481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:08:26,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:08:26,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:08:26,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937298544] [2022-07-13 02:08:26,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:08:26,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:08:26,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:26,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:08:26,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:08:26,732 INFO L87 Difference]: Start difference. First operand 423 states and 592 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-07-13 02:08:26,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:26,768 INFO L93 Difference]: Finished difference Result 710 states and 993 transitions. [2022-07-13 02:08:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:08:26,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2022-07-13 02:08:26,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:26,770 INFO L225 Difference]: With dead ends: 710 [2022-07-13 02:08:26,770 INFO L226 Difference]: Without dead ends: 386 [2022-07-13 02:08:26,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:08:26,775 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:26,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 29 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:08:26,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-07-13 02:08:26,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 292. [2022-07-13 02:08:26,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 289 states have (on average 1.356401384083045) internal successors, (392), 291 states have internal predecessors, (392), 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) [2022-07-13 02:08:26,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 392 transitions. [2022-07-13 02:08:26,810 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 392 transitions. Word has length 18 [2022-07-13 02:08:26,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:26,810 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 392 transitions. [2022-07-13 02:08:26,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-07-13 02:08:26,810 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 392 transitions. [2022-07-13 02:08:26,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-13 02:08:26,811 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:26,811 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:26,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 02:08:26,812 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:26,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:26,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1129109338, now seen corresponding path program 1 times [2022-07-13 02:08:26,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:26,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931759686] [2022-07-13 02:08:26,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:26,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:26,908 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:26,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:26,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931759686] [2022-07-13 02:08:26,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931759686] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:26,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605113990] [2022-07-13 02:08:26,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:26,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:26,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:26,912 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) [2022-07-13 02:08:26,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-13 02:08:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:26,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 02:08:26,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:27,100 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:27,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:27,234 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:27,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605113990] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:27,235 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:27,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-07-13 02:08:27,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826851944] [2022-07-13 02:08:27,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:27,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-13 02:08:27,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:27,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-13 02:08:27,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=626, Unknown=0, NotChecked=0, Total=812 [2022-07-13 02:08:27,236 INFO L87 Difference]: Start difference. First operand 292 states and 392 transitions. Second operand has 29 states, 28 states have (on average 2.2857142857142856) internal successors, (64), 29 states have internal predecessors, (64), 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) [2022-07-13 02:08:27,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:27,721 INFO L93 Difference]: Finished difference Result 503 states and 661 transitions. [2022-07-13 02:08:27,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-07-13 02:08:27,722 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.2857142857142856) internal successors, (64), 29 states have internal predecessors, (64), 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 22 [2022-07-13 02:08:27,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:27,724 INFO L225 Difference]: With dead ends: 503 [2022-07-13 02:08:27,724 INFO L226 Difference]: Without dead ends: 494 [2022-07-13 02:08:27,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=626, Invalid=2130, Unknown=0, NotChecked=0, Total=2756 [2022-07-13 02:08:27,726 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 221 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:27,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 63 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:08:27,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-07-13 02:08:27,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 317. [2022-07-13 02:08:27,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 314 states have (on average 1.3821656050955413) internal successors, (434), 316 states have internal predecessors, (434), 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) [2022-07-13 02:08:27,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 434 transitions. [2022-07-13 02:08:27,747 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 434 transitions. Word has length 22 [2022-07-13 02:08:27,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:27,747 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 434 transitions. [2022-07-13 02:08:27,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.2857142857142856) internal successors, (64), 29 states have internal predecessors, (64), 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) [2022-07-13 02:08:27,747 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 434 transitions. [2022-07-13 02:08:27,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-13 02:08:27,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:27,748 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:27,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:27,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-13 02:08:27,963 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:27,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:27,964 INFO L85 PathProgramCache]: Analyzing trace with hash -198939945, now seen corresponding path program 2 times [2022-07-13 02:08:27,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:27,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633255527] [2022-07-13 02:08:27,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:27,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:28,026 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:28,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:28,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633255527] [2022-07-13 02:08:28,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633255527] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:28,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524745701] [2022-07-13 02:08:28,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:08:28,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:28,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:28,028 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:28,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-13 02:08:28,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:08:28,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:08:28,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 02:08:28,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:28,206 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:28,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:28,314 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:28,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524745701] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:28,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:28,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-07-13 02:08:28,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504671135] [2022-07-13 02:08:28,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:28,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-13 02:08:28,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:28,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-13 02:08:28,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2022-07-13 02:08:28,317 INFO L87 Difference]: Start difference. First operand 317 states and 434 transitions. Second operand has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 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) [2022-07-13 02:08:28,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:28,699 INFO L93 Difference]: Finished difference Result 423 states and 558 transitions. [2022-07-13 02:08:28,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-13 02:08:28,700 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 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 23 [2022-07-13 02:08:28,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:28,701 INFO L225 Difference]: With dead ends: 423 [2022-07-13 02:08:28,701 INFO L226 Difference]: Without dead ends: 415 [2022-07-13 02:08:28,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=651, Invalid=1605, Unknown=0, NotChecked=0, Total=2256 [2022-07-13 02:08:28,703 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 174 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:28,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 91 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:08:28,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-07-13 02:08:28,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 400. [2022-07-13 02:08:28,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 397 states have (on average 1.345088161209068) internal successors, (534), 399 states have internal predecessors, (534), 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) [2022-07-13 02:08:28,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 534 transitions. [2022-07-13 02:08:28,732 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 534 transitions. Word has length 23 [2022-07-13 02:08:28,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:28,732 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 534 transitions. [2022-07-13 02:08:28,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 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) [2022-07-13 02:08:28,732 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 534 transitions. [2022-07-13 02:08:28,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-13 02:08:28,733 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:28,733 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:28,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:28,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-13 02:08:28,959 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:28,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:28,960 INFO L85 PathProgramCache]: Analyzing trace with hash -198939895, now seen corresponding path program 2 times [2022-07-13 02:08:28,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:28,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302585394] [2022-07-13 02:08:28,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:28,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:29,029 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:29,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:29,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302585394] [2022-07-13 02:08:29,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302585394] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:29,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967570267] [2022-07-13 02:08:29,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:08:29,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:29,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:29,031 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:29,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-13 02:08:29,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-13 02:08:29,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:08:29,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 02:08:29,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:29,095 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-13 02:08:29,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:29,133 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-13 02:08:29,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967570267] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:29,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:29,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 13 [2022-07-13 02:08:29,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087078425] [2022-07-13 02:08:29,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:29,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 02:08:29,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:29,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 02:08:29,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-07-13 02:08:29,134 INFO L87 Difference]: Start difference. First operand 400 states and 534 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 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) [2022-07-13 02:08:29,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:29,301 INFO L93 Difference]: Finished difference Result 472 states and 624 transitions. [2022-07-13 02:08:29,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 02:08:29,301 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 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 23 [2022-07-13 02:08:29,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:29,303 INFO L225 Difference]: With dead ends: 472 [2022-07-13 02:08:29,303 INFO L226 Difference]: Without dead ends: 471 [2022-07-13 02:08:29,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=174, Invalid=426, Unknown=0, NotChecked=0, Total=600 [2022-07-13 02:08:29,304 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 157 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:29,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 119 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:08:29,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-07-13 02:08:29,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 254. [2022-07-13 02:08:29,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 252 states have (on average 1.3015873015873016) internal successors, (328), 253 states have internal predecessors, (328), 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) [2022-07-13 02:08:29,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 328 transitions. [2022-07-13 02:08:29,332 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 328 transitions. Word has length 23 [2022-07-13 02:08:29,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:29,332 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 328 transitions. [2022-07-13 02:08:29,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 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) [2022-07-13 02:08:29,333 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 328 transitions. [2022-07-13 02:08:29,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-13 02:08:29,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:29,334 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:29,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:29,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:29,557 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:29,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:29,557 INFO L85 PathProgramCache]: Analyzing trace with hash 2131972659, now seen corresponding path program 2 times [2022-07-13 02:08:29,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:29,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873041952] [2022-07-13 02:08:29,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:29,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:29,643 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:29,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:29,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873041952] [2022-07-13 02:08:29,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873041952] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:29,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545196563] [2022-07-13 02:08:29,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:08:29,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:29,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:29,646 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:29,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-13 02:08:29,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-13 02:08:29,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:08:29,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 02:08:29,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:29,715 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-13 02:08:29,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:08:29,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545196563] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:08:29,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:08:29,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2022-07-13 02:08:29,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412007615] [2022-07-13 02:08:29,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:08:29,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:08:29,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:29,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:08:29,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-07-13 02:08:29,717 INFO L87 Difference]: Start difference. First operand 254 states and 328 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:29,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:29,788 INFO L93 Difference]: Finished difference Result 408 states and 519 transitions. [2022-07-13 02:08:29,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:08:29,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-07-13 02:08:29,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:29,790 INFO L225 Difference]: With dead ends: 408 [2022-07-13 02:08:29,790 INFO L226 Difference]: Without dead ends: 228 [2022-07-13 02:08:29,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-07-13 02:08:29,792 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 21 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:29,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 48 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:08:29,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-07-13 02:08:29,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 224. [2022-07-13 02:08:29,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 222 states have (on average 1.2252252252252251) internal successors, (272), 223 states have internal predecessors, (272), 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) [2022-07-13 02:08:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 272 transitions. [2022-07-13 02:08:29,836 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 272 transitions. Word has length 26 [2022-07-13 02:08:29,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:29,837 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 272 transitions. [2022-07-13 02:08:29,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:08:29,837 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 272 transitions. [2022-07-13 02:08:29,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-13 02:08:29,837 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:29,837 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:29,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:30,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:30,059 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:30,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:30,060 INFO L85 PathProgramCache]: Analyzing trace with hash 173293468, now seen corresponding path program 1 times [2022-07-13 02:08:30,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:30,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623270557] [2022-07-13 02:08:30,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:30,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:30,144 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:30,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:30,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623270557] [2022-07-13 02:08:30,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623270557] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:30,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852393415] [2022-07-13 02:08:30,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:30,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:30,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:30,146 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:30,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-13 02:08:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:30,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-13 02:08:30,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:30,349 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:30,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:30,498 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:30,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852393415] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:30,499 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:30,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2022-07-13 02:08:30,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455605703] [2022-07-13 02:08:30,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:30,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-07-13 02:08:30,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:30,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-07-13 02:08:30,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=922, Unknown=0, NotChecked=0, Total=1190 [2022-07-13 02:08:30,502 INFO L87 Difference]: Start difference. First operand 224 states and 272 transitions. Second operand has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 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) [2022-07-13 02:08:30,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:30,935 INFO L93 Difference]: Finished difference Result 325 states and 391 transitions. [2022-07-13 02:08:30,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-07-13 02:08:30,935 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 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 27 [2022-07-13 02:08:30,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:30,937 INFO L225 Difference]: With dead ends: 325 [2022-07-13 02:08:30,937 INFO L226 Difference]: Without dead ends: 319 [2022-07-13 02:08:30,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=799, Invalid=2281, Unknown=0, NotChecked=0, Total=3080 [2022-07-13 02:08:30,938 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 261 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:30,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 82 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:08:30,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-07-13 02:08:30,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 270. [2022-07-13 02:08:30,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 268 states have (on average 1.205223880597015) internal successors, (323), 269 states have internal predecessors, (323), 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) [2022-07-13 02:08:30,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 323 transitions. [2022-07-13 02:08:30,974 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 323 transitions. Word has length 27 [2022-07-13 02:08:30,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:30,974 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 323 transitions. [2022-07-13 02:08:30,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 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) [2022-07-13 02:08:30,975 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 323 transitions. [2022-07-13 02:08:30,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-13 02:08:30,975 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:30,975 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:31,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:31,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-13 02:08:31,195 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:31,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:31,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1060574047, now seen corresponding path program 1 times [2022-07-13 02:08:31,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:31,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197109298] [2022-07-13 02:08:31,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:31,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:31,261 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:31,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:31,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197109298] [2022-07-13 02:08:31,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197109298] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:31,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948681207] [2022-07-13 02:08:31,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:31,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:31,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:31,264 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:31,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-13 02:08:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:31,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 02:08:31,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:31,330 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:31,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:31,478 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:31,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948681207] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:31,478 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:31,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2022-07-13 02:08:31,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763061996] [2022-07-13 02:08:31,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:31,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-13 02:08:31,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:31,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-13 02:08:31,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-07-13 02:08:31,480 INFO L87 Difference]: Start difference. First operand 270 states and 323 transitions. Second operand has 22 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 22 states have internal predecessors, (53), 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) [2022-07-13 02:08:31,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:31,754 INFO L93 Difference]: Finished difference Result 564 states and 711 transitions. [2022-07-13 02:08:31,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-13 02:08:31,755 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 22 states have internal predecessors, (53), 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 27 [2022-07-13 02:08:31,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:31,757 INFO L225 Difference]: With dead ends: 564 [2022-07-13 02:08:31,757 INFO L226 Difference]: Without dead ends: 563 [2022-07-13 02:08:31,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2022-07-13 02:08:31,759 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 241 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:31,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 95 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:08:31,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-07-13 02:08:31,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 337. [2022-07-13 02:08:31,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 335 states have (on average 1.2447761194029852) internal successors, (417), 336 states have internal predecessors, (417), 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) [2022-07-13 02:08:31,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 417 transitions. [2022-07-13 02:08:31,815 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 417 transitions. Word has length 27 [2022-07-13 02:08:31,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:31,815 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 417 transitions. [2022-07-13 02:08:31,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 22 states have internal predecessors, (53), 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) [2022-07-13 02:08:31,816 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 417 transitions. [2022-07-13 02:08:31,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-13 02:08:31,816 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:31,817 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:31,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:32,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-13 02:08:32,031 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:32,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:32,032 INFO L85 PathProgramCache]: Analyzing trace with hash -617200904, now seen corresponding path program 1 times [2022-07-13 02:08:32,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:32,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244542647] [2022-07-13 02:08:32,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:32,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:32,133 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:32,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:32,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244542647] [2022-07-13 02:08:32,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244542647] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:32,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820742399] [2022-07-13 02:08:32,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:32,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:32,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:32,135 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:32,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-13 02:08:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:32,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-13 02:08:32,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:32,389 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:32,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:32,599 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:32,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820742399] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:32,599 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:32,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 40 [2022-07-13 02:08:32,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472815313] [2022-07-13 02:08:32,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:32,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-07-13 02:08:32,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:32,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-07-13 02:08:32,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=1306, Unknown=0, NotChecked=0, Total=1640 [2022-07-13 02:08:32,601 INFO L87 Difference]: Start difference. First operand 337 states and 417 transitions. Second operand has 41 states, 40 states have (on average 2.35) internal successors, (94), 41 states have internal predecessors, (94), 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) [2022-07-13 02:08:33,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:33,485 INFO L93 Difference]: Finished difference Result 660 states and 822 transitions. [2022-07-13 02:08:33,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-07-13 02:08:33,486 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.35) internal successors, (94), 41 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-07-13 02:08:33,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:33,488 INFO L225 Difference]: With dead ends: 660 [2022-07-13 02:08:33,488 INFO L226 Difference]: Without dead ends: 649 [2022-07-13 02:08:33,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2110 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1394, Invalid=5086, Unknown=0, NotChecked=0, Total=6480 [2022-07-13 02:08:33,491 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 349 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:33,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 92 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:08:33,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2022-07-13 02:08:33,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 429. [2022-07-13 02:08:33,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 427 states have (on average 1.2505854800936769) internal successors, (534), 428 states have internal predecessors, (534), 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) [2022-07-13 02:08:33,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 534 transitions. [2022-07-13 02:08:33,559 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 534 transitions. Word has length 32 [2022-07-13 02:08:33,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:33,559 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 534 transitions. [2022-07-13 02:08:33,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.35) internal successors, (94), 41 states have internal predecessors, (94), 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) [2022-07-13 02:08:33,560 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 534 transitions. [2022-07-13 02:08:33,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-13 02:08:33,560 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:33,560 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:08:33,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:33,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:33,780 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:33,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:33,780 INFO L85 PathProgramCache]: Analyzing trace with hash 819223618, now seen corresponding path program 2 times [2022-07-13 02:08:33,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:33,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854994218] [2022-07-13 02:08:33,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:33,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:33,949 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:33,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:33,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854994218] [2022-07-13 02:08:33,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854994218] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:33,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010659385] [2022-07-13 02:08:33,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:08:33,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:33,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:33,952 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:33,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-13 02:08:33,980 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:08:33,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:08:33,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-13 02:08:33,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:34,286 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:34,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:34,612 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:34,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010659385] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:34,612 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:34,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 52 [2022-07-13 02:08:34,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712375536] [2022-07-13 02:08:34,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:34,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-07-13 02:08:34,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:34,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-07-13 02:08:34,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=546, Invalid=2210, Unknown=0, NotChecked=0, Total=2756 [2022-07-13 02:08:34,614 INFO L87 Difference]: Start difference. First operand 429 states and 534 transitions. Second operand has 53 states, 52 states have (on average 2.3846153846153846) internal successors, (124), 53 states have internal predecessors, (124), 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) [2022-07-13 02:08:35,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:35,847 INFO L93 Difference]: Finished difference Result 993 states and 1260 transitions. [2022-07-13 02:08:35,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-07-13 02:08:35,848 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 2.3846153846153846) internal successors, (124), 53 states have internal predecessors, (124), 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 42 [2022-07-13 02:08:35,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:35,851 INFO L225 Difference]: With dead ends: 993 [2022-07-13 02:08:35,851 INFO L226 Difference]: Without dead ends: 981 [2022-07-13 02:08:35,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3643 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2275, Invalid=8437, Unknown=0, NotChecked=0, Total=10712 [2022-07-13 02:08:35,855 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 650 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:35,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 92 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:08:35,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2022-07-13 02:08:35,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 561. [2022-07-13 02:08:35,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 559 states have (on average 1.2826475849731664) internal successors, (717), 560 states have internal predecessors, (717), 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) [2022-07-13 02:08:35,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 717 transitions. [2022-07-13 02:08:35,944 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 717 transitions. Word has length 42 [2022-07-13 02:08:35,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:35,944 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 717 transitions. [2022-07-13 02:08:35,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 2.3846153846153846) internal successors, (124), 53 states have internal predecessors, (124), 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) [2022-07-13 02:08:35,945 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 717 transitions. [2022-07-13 02:08:35,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-13 02:08:35,945 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:35,946 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:35,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:36,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:36,170 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:36,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:36,170 INFO L85 PathProgramCache]: Analyzing trace with hash 155546162, now seen corresponding path program 1 times [2022-07-13 02:08:36,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:36,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008346861] [2022-07-13 02:08:36,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:36,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:36,365 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:36,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:36,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008346861] [2022-07-13 02:08:36,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008346861] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:36,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071887268] [2022-07-13 02:08:36,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:36,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:36,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:36,367 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:36,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-13 02:08:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:36,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-13 02:08:36,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:36,747 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:36,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:37,110 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:37,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071887268] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:37,111 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:37,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 58 [2022-07-13 02:08:37,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755858755] [2022-07-13 02:08:37,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:37,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-07-13 02:08:37,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:37,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-07-13 02:08:37,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=676, Invalid=2746, Unknown=0, NotChecked=0, Total=3422 [2022-07-13 02:08:37,114 INFO L87 Difference]: Start difference. First operand 561 states and 717 transitions. Second operand has 59 states, 58 states have (on average 2.293103448275862) internal successors, (133), 59 states have internal predecessors, (133), 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) [2022-07-13 02:08:38,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:38,530 INFO L93 Difference]: Finished difference Result 1452 states and 1822 transitions. [2022-07-13 02:08:38,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-07-13 02:08:38,530 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.293103448275862) internal successors, (133), 59 states have internal predecessors, (133), 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 45 [2022-07-13 02:08:38,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:38,534 INFO L225 Difference]: With dead ends: 1452 [2022-07-13 02:08:38,535 INFO L226 Difference]: Without dead ends: 1439 [2022-07-13 02:08:38,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4684 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2978, Invalid=10828, Unknown=0, NotChecked=0, Total=13806 [2022-07-13 02:08:38,538 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 685 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:38,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 107 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:08:38,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2022-07-13 02:08:38,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1002. [2022-07-13 02:08:38,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 1000 states have (on average 1.284) internal successors, (1284), 1001 states have internal predecessors, (1284), 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) [2022-07-13 02:08:38,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1284 transitions. [2022-07-13 02:08:38,685 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1284 transitions. Word has length 45 [2022-07-13 02:08:38,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:38,685 INFO L495 AbstractCegarLoop]: Abstraction has 1002 states and 1284 transitions. [2022-07-13 02:08:38,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.293103448275862) internal successors, (133), 59 states have internal predecessors, (133), 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) [2022-07-13 02:08:38,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1284 transitions. [2022-07-13 02:08:38,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-13 02:08:38,687 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:38,687 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-07-13 02:08:38,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-07-13 02:08:38,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-13 02:08:38,911 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:38,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:38,912 INFO L85 PathProgramCache]: Analyzing trace with hash 40208802, now seen corresponding path program 3 times [2022-07-13 02:08:38,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:38,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548323114] [2022-07-13 02:08:38,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:38,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:39,122 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:39,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:39,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548323114] [2022-07-13 02:08:39,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548323114] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:39,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637803894] [2022-07-13 02:08:39,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 02:08:39,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:39,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:39,128 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:39,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-13 02:08:39,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-13 02:08:39,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:08:39,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:08:39,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:39,189 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-07-13 02:08:39,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:08:39,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637803894] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:08:39,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:08:39,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [22] total 24 [2022-07-13 02:08:39,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015817903] [2022-07-13 02:08:39,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:08:39,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:08:39,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:39,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:08:39,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:08:39,191 INFO L87 Difference]: Start difference. First operand 1002 states and 1284 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) [2022-07-13 02:08:39,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:39,300 INFO L93 Difference]: Finished difference Result 1290 states and 1648 transitions. [2022-07-13 02:08:39,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:08:39,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-07-13 02:08:39,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:39,303 INFO L225 Difference]: With dead ends: 1290 [2022-07-13 02:08:39,303 INFO L226 Difference]: Without dead ends: 637 [2022-07-13 02:08:39,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:08:39,305 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:39,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 25 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:08:39,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-07-13 02:08:39,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 533. [2022-07-13 02:08:39,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 531 states have (on average 1.2090395480225988) internal successors, (642), 532 states have internal predecessors, (642), 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) [2022-07-13 02:08:39,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 642 transitions. [2022-07-13 02:08:39,403 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 642 transitions. Word has length 50 [2022-07-13 02:08:39,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:39,404 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 642 transitions. [2022-07-13 02:08:39,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) [2022-07-13 02:08:39,405 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 642 transitions. [2022-07-13 02:08:39,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-13 02:08:39,405 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:39,406 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:39,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:39,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-13 02:08:39,617 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:39,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:39,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1442158919, now seen corresponding path program 2 times [2022-07-13 02:08:39,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:39,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457458935] [2022-07-13 02:08:39,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:39,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:39,831 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:39,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:39,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457458935] [2022-07-13 02:08:39,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457458935] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:39,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387169122] [2022-07-13 02:08:39,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:08:39,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:39,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:39,833 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:39,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-13 02:08:39,868 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:08:39,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:08:39,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-13 02:08:39,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:40,291 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:40,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:40,693 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:40,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387169122] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:40,693 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:40,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 64 [2022-07-13 02:08:40,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158638913] [2022-07-13 02:08:40,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:40,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-07-13 02:08:40,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:40,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-07-13 02:08:40,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=822, Invalid=3338, Unknown=0, NotChecked=0, Total=4160 [2022-07-13 02:08:40,696 INFO L87 Difference]: Start difference. First operand 533 states and 642 transitions. Second operand has 65 states, 64 states have (on average 2.359375) internal successors, (151), 65 states have internal predecessors, (151), 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) [2022-07-13 02:08:42,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:42,202 INFO L93 Difference]: Finished difference Result 1505 states and 1828 transitions. [2022-07-13 02:08:42,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-07-13 02:08:42,203 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 2.359375) internal successors, (151), 65 states have internal predecessors, (151), 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 51 [2022-07-13 02:08:42,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:42,208 INFO L225 Difference]: With dead ends: 1505 [2022-07-13 02:08:42,208 INFO L226 Difference]: Without dead ends: 1489 [2022-07-13 02:08:42,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5788 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=3331, Invalid=12925, Unknown=0, NotChecked=0, Total=16256 [2022-07-13 02:08:42,211 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 634 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:42,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 100 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:08:42,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2022-07-13 02:08:42,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 724. [2022-07-13 02:08:42,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 722 states have (on average 1.2437673130193905) internal successors, (898), 723 states have internal predecessors, (898), 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) [2022-07-13 02:08:42,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 898 transitions. [2022-07-13 02:08:42,322 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 898 transitions. Word has length 51 [2022-07-13 02:08:42,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:42,322 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 898 transitions. [2022-07-13 02:08:42,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 2.359375) internal successors, (151), 65 states have internal predecessors, (151), 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) [2022-07-13 02:08:42,323 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 898 transitions. [2022-07-13 02:08:42,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-13 02:08:42,324 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:42,324 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:42,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-07-13 02:08:42,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-13 02:08:42,537 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:42,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:42,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2011601919, now seen corresponding path program 3 times [2022-07-13 02:08:42,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:42,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844879295] [2022-07-13 02:08:42,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:42,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:42,820 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:42,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:42,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844879295] [2022-07-13 02:08:42,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844879295] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:42,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7428329] [2022-07-13 02:08:42,821 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 02:08:42,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:42,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:42,824 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:42,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-13 02:08:42,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-13 02:08:42,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:08:42,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-13 02:08:42,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:43,067 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 20 proven. 58 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-07-13 02:08:43,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:43,546 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-07-13 02:08:43,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7428329] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:43,546 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:43,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 13, 13] total 50 [2022-07-13 02:08:43,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841117872] [2022-07-13 02:08:43,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:43,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-07-13 02:08:43,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:43,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-07-13 02:08:43,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=2161, Unknown=0, NotChecked=0, Total=2450 [2022-07-13 02:08:43,548 INFO L87 Difference]: Start difference. First operand 724 states and 898 transitions. Second operand has 50 states, 50 states have (on average 2.54) internal successors, (127), 50 states have internal predecessors, (127), 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) [2022-07-13 02:08:46,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:46,891 INFO L93 Difference]: Finished difference Result 1693 states and 2036 transitions. [2022-07-13 02:08:46,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-07-13 02:08:46,892 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.54) internal successors, (127), 50 states have internal predecessors, (127), 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 57 [2022-07-13 02:08:46,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:46,894 INFO L225 Difference]: With dead ends: 1693 [2022-07-13 02:08:46,894 INFO L226 Difference]: Without dead ends: 1037 [2022-07-13 02:08:46,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8000 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2759, Invalid=24301, Unknown=0, NotChecked=0, Total=27060 [2022-07-13 02:08:46,897 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 989 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:46,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 369 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 02:08:46,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2022-07-13 02:08:47,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 592. [2022-07-13 02:08:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 590 states have (on average 1.2169491525423728) internal successors, (718), 591 states have internal predecessors, (718), 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) [2022-07-13 02:08:47,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 718 transitions. [2022-07-13 02:08:47,007 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 718 transitions. Word has length 57 [2022-07-13 02:08:47,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:47,007 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 718 transitions. [2022-07-13 02:08:47,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.54) internal successors, (127), 50 states have internal predecessors, (127), 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) [2022-07-13 02:08:47,007 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 718 transitions. [2022-07-13 02:08:47,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-13 02:08:47,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:47,008 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:08:47,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:47,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:47,221 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:47,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:47,221 INFO L85 PathProgramCache]: Analyzing trace with hash 2012170120, now seen corresponding path program 4 times [2022-07-13 02:08:47,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:47,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764452720] [2022-07-13 02:08:47,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:47,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:47,509 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:47,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:47,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764452720] [2022-07-13 02:08:47,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764452720] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:47,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033940967] [2022-07-13 02:08:47,510 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 02:08:47,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:47,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:47,512 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:47,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-13 02:08:47,544 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 02:08:47,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:08:47,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-13 02:08:47,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:48,106 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:48,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:48,704 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:48,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033940967] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:48,705 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:48,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 82 [2022-07-13 02:08:48,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142224505] [2022-07-13 02:08:48,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:48,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-07-13 02:08:48,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:48,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-07-13 02:08:48,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1276, Invalid=5530, Unknown=0, NotChecked=0, Total=6806 [2022-07-13 02:08:48,707 INFO L87 Difference]: Start difference. First operand 592 states and 718 transitions. Second operand has 83 states, 82 states have (on average 2.2804878048780486) internal successors, (187), 83 states have internal predecessors, (187), 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) [2022-07-13 02:08:50,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:50,412 INFO L93 Difference]: Finished difference Result 1429 states and 1676 transitions. [2022-07-13 02:08:50,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-07-13 02:08:50,412 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 2.2804878048780486) internal successors, (187), 83 states have internal predecessors, (187), 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 63 [2022-07-13 02:08:50,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:50,416 INFO L225 Difference]: With dead ends: 1429 [2022-07-13 02:08:50,417 INFO L226 Difference]: Without dead ends: 1417 [2022-07-13 02:08:50,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7788 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=4696, Invalid=16766, Unknown=0, NotChecked=0, Total=21462 [2022-07-13 02:08:50,419 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 785 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:50,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 137 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:08:50,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2022-07-13 02:08:50,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 880. [2022-07-13 02:08:50,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.2232346241457859) internal successors, (1074), 879 states have internal predecessors, (1074), 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) [2022-07-13 02:08:50,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1074 transitions. [2022-07-13 02:08:50,626 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1074 transitions. Word has length 63 [2022-07-13 02:08:50,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:50,626 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1074 transitions. [2022-07-13 02:08:50,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 2.2804878048780486) internal successors, (187), 83 states have internal predecessors, (187), 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) [2022-07-13 02:08:50,627 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1074 transitions. [2022-07-13 02:08:50,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-13 02:08:50,628 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:50,628 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 6, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2022-07-13 02:08:50,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:50,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-13 02:08:50,853 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:50,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:50,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1937639662, now seen corresponding path program 2 times [2022-07-13 02:08:50,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:50,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027471227] [2022-07-13 02:08:50,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:50,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:51,064 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:51,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:51,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027471227] [2022-07-13 02:08:51,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027471227] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:51,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596040016] [2022-07-13 02:08:51,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:08:51,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:51,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:51,068 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:51,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-13 02:08:51,091 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-13 02:08:51,091 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:08:51,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 02:08:51,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:51,177 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-13 02:08:51,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:51,252 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-13 02:08:51,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596040016] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:51,252 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:51,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 3, 3] total 25 [2022-07-13 02:08:51,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469858414] [2022-07-13 02:08:51,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:51,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-13 02:08:51,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:51,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-13 02:08:51,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2022-07-13 02:08:51,253 INFO L87 Difference]: Start difference. First operand 880 states and 1074 transitions. Second operand has 26 states, 25 states have (on average 3.32) internal successors, (83), 26 states have internal predecessors, (83), 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) [2022-07-13 02:08:52,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:52,014 INFO L93 Difference]: Finished difference Result 1693 states and 1985 transitions. [2022-07-13 02:08:52,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-13 02:08:52,015 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.32) internal successors, (83), 26 states have internal predecessors, (83), 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 69 [2022-07-13 02:08:52,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:52,019 INFO L225 Difference]: With dead ends: 1693 [2022-07-13 02:08:52,020 INFO L226 Difference]: Without dead ends: 1692 [2022-07-13 02:08:52,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=636, Invalid=1716, Unknown=0, NotChecked=0, Total=2352 [2022-07-13 02:08:52,021 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 189 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:52,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 143 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:08:52,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2022-07-13 02:08:52,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 712. [2022-07-13 02:08:52,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 711 states have (on average 1.20112517580872) internal successors, (854), 711 states have internal predecessors, (854), 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) [2022-07-13 02:08:52,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 854 transitions. [2022-07-13 02:08:52,180 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 854 transitions. Word has length 69 [2022-07-13 02:08:52,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:52,181 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 854 transitions. [2022-07-13 02:08:52,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.32) internal successors, (83), 26 states have internal predecessors, (83), 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) [2022-07-13 02:08:52,181 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 854 transitions. [2022-07-13 02:08:52,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-13 02:08:52,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:52,183 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-13 02:08:52,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-07-13 02:08:52,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:52,394 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:52,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:52,395 INFO L85 PathProgramCache]: Analyzing trace with hash 448781649, now seen corresponding path program 1 times [2022-07-13 02:08:52,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:52,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310862958] [2022-07-13 02:08:52,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:52,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:52,741 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:52,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:52,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310862958] [2022-07-13 02:08:52,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310862958] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:52,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227910631] [2022-07-13 02:08:52,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:52,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:52,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:52,744 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:52,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-13 02:08:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:52,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-13 02:08:52,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:53,415 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:53,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:54,197 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:54,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227910631] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:54,198 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:54,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2022-07-13 02:08:54,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142098245] [2022-07-13 02:08:54,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:54,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-07-13 02:08:54,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:54,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-07-13 02:08:54,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1728, Invalid=7202, Unknown=0, NotChecked=0, Total=8930 [2022-07-13 02:08:54,201 INFO L87 Difference]: Start difference. First operand 712 states and 854 transitions. Second operand has 95 states, 94 states have (on average 2.3404255319148937) internal successors, (220), 95 states have internal predecessors, (220), 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) [2022-07-13 02:08:56,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:56,726 INFO L93 Difference]: Finished difference Result 1908 states and 2281 transitions. [2022-07-13 02:08:56,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-07-13 02:08:56,726 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 2.3404255319148937) internal successors, (220), 95 states have internal predecessors, (220), 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 74 [2022-07-13 02:08:56,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:56,731 INFO L225 Difference]: With dead ends: 1908 [2022-07-13 02:08:56,731 INFO L226 Difference]: Without dead ends: 1879 [2022-07-13 02:08:56,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11834 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=6339, Invalid=25523, Unknown=0, NotChecked=0, Total=31862 [2022-07-13 02:08:56,733 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 904 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:56,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 149 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:08:56,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2022-07-13 02:08:56,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 757. [2022-07-13 02:08:56,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 756 states have (on average 1.2103174603174602) internal successors, (915), 756 states have internal predecessors, (915), 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) [2022-07-13 02:08:56,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 915 transitions. [2022-07-13 02:08:56,923 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 915 transitions. Word has length 74 [2022-07-13 02:08:56,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:56,923 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 915 transitions. [2022-07-13 02:08:56,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 2.3404255319148937) internal successors, (220), 95 states have internal predecessors, (220), 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) [2022-07-13 02:08:56,923 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 915 transitions. [2022-07-13 02:08:56,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-13 02:08:56,924 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:56,925 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 6, 6, 6, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1] [2022-07-13 02:08:56,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-07-13 02:08:57,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:57,127 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:57,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:57,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1955030167, now seen corresponding path program 5 times [2022-07-13 02:08:57,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:57,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026132492] [2022-07-13 02:08:57,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:57,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:08:57,556 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:08:57,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:08:57,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026132492] [2022-07-13 02:08:57,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026132492] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:08:57,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232401466] [2022-07-13 02:08:57,557 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-13 02:08:57,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:57,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:08:57,558 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:08:57,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-13 02:08:57,599 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-07-13 02:08:57,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:08:57,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-13 02:08:57,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:08:57,704 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 181 proven. 5 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-07-13 02:08:57,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:08:57,737 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 181 proven. 5 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-07-13 02:08:57,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232401466] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:08:57,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:08:57,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 6, 6] total 41 [2022-07-13 02:08:57,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201480485] [2022-07-13 02:08:57,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:08:57,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-07-13 02:08:57,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:08:57,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-07-13 02:08:57,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1338, Unknown=0, NotChecked=0, Total=1640 [2022-07-13 02:08:57,740 INFO L87 Difference]: Start difference. First operand 757 states and 915 transitions. Second operand has 41 states, 41 states have (on average 2.975609756097561) internal successors, (122), 41 states have internal predecessors, (122), 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) [2022-07-13 02:08:59,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:08:59,367 INFO L93 Difference]: Finished difference Result 1043 states and 1229 transitions. [2022-07-13 02:08:59,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-07-13 02:08:59,368 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 2.975609756097561) internal successors, (122), 41 states have internal predecessors, (122), 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 82 [2022-07-13 02:08:59,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:08:59,369 INFO L225 Difference]: With dead ends: 1043 [2022-07-13 02:08:59,369 INFO L226 Difference]: Without dead ends: 463 [2022-07-13 02:08:59,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2787 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1976, Invalid=9154, Unknown=0, NotChecked=0, Total=11130 [2022-07-13 02:08:59,371 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 430 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:08:59,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 122 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:08:59,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-07-13 02:08:59,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 322. [2022-07-13 02:08:59,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 1.0591900311526479) internal successors, (340), 321 states have internal predecessors, (340), 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) [2022-07-13 02:08:59,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 340 transitions. [2022-07-13 02:08:59,498 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 340 transitions. Word has length 82 [2022-07-13 02:08:59,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:08:59,498 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 340 transitions. [2022-07-13 02:08:59,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.975609756097561) internal successors, (122), 41 states have internal predecessors, (122), 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) [2022-07-13 02:08:59,498 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 340 transitions. [2022-07-13 02:08:59,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-13 02:08:59,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:08:59,499 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:08:59,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-07-13 02:08:59,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:08:59,700 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:08:59,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:08:59,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1088474210, now seen corresponding path program 2 times [2022-07-13 02:08:59,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:08:59,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586576590] [2022-07-13 02:08:59,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:08:59,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:08:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:00,291 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:00,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:00,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586576590] [2022-07-13 02:09:00,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586576590] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:09:00,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471221369] [2022-07-13 02:09:00,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:09:00,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:00,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:09:00,293 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:09:00,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-13 02:09:00,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:09:00,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:09:00,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 41 conjunts are in the unsatisfiable core [2022-07-13 02:09:00,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:09:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:01,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:09:02,383 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:02,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471221369] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:09:02,383 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:09:02,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2022-07-13 02:09:02,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592297850] [2022-07-13 02:09:02,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:09:02,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-07-13 02:09:02,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:02,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-07-13 02:09:02,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3096, Invalid=10946, Unknown=0, NotChecked=0, Total=14042 [2022-07-13 02:09:02,387 INFO L87 Difference]: Start difference. First operand 322 states and 340 transitions. Second operand has 119 states, 118 states have (on average 2.093220338983051) internal successors, (247), 119 states have internal predecessors, (247), 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) [2022-07-13 02:09:04,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:04,739 INFO L93 Difference]: Finished difference Result 850 states and 906 transitions. [2022-07-13 02:09:04,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-07-13 02:09:04,740 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 2.093220338983051) internal successors, (247), 119 states have internal predecessors, (247), 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 83 [2022-07-13 02:09:04,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:04,742 INFO L225 Difference]: With dead ends: 850 [2022-07-13 02:09:04,742 INFO L226 Difference]: Without dead ends: 828 [2022-07-13 02:09:04,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14213 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=9752, Invalid=28468, Unknown=0, NotChecked=0, Total=38220 [2022-07-13 02:09:04,744 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 988 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:04,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 174 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:09:04,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-07-13 02:09:04,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 538. [2022-07-13 02:09:04,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.0353817504655494) internal successors, (556), 537 states have internal predecessors, (556), 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) [2022-07-13 02:09:04,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 556 transitions. [2022-07-13 02:09:04,955 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 556 transitions. Word has length 83 [2022-07-13 02:09:04,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:04,955 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 556 transitions. [2022-07-13 02:09:04,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 2.093220338983051) internal successors, (247), 119 states have internal predecessors, (247), 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) [2022-07-13 02:09:04,955 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 556 transitions. [2022-07-13 02:09:04,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-13 02:09:04,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:04,956 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 7, 7, 7, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1] [2022-07-13 02:09:04,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-07-13 02:09:05,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:05,157 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:09:05,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:05,157 INFO L85 PathProgramCache]: Analyzing trace with hash -319776093, now seen corresponding path program 6 times [2022-07-13 02:09:05,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:05,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544425391] [2022-07-13 02:09:05,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:05,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:05,671 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:05,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:05,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544425391] [2022-07-13 02:09:05,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544425391] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:09:05,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603675857] [2022-07-13 02:09:05,672 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-13 02:09:05,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:05,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:09:05,676 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:09:05,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-13 02:09:05,716 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-07-13 02:09:05,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:09:05,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 39 conjunts are in the unsatisfiable core [2022-07-13 02:09:05,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:09:06,538 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:06,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:09:07,512 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:07,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603675857] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:09:07,512 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:09:07,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 112 [2022-07-13 02:09:07,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306417365] [2022-07-13 02:09:07,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:09:07,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2022-07-13 02:09:07,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:07,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2022-07-13 02:09:07,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2310, Invalid=10346, Unknown=0, NotChecked=0, Total=12656 [2022-07-13 02:09:07,516 INFO L87 Difference]: Start difference. First operand 538 states and 556 transitions. Second operand has 113 states, 112 states have (on average 2.2589285714285716) internal successors, (253), 113 states have internal predecessors, (253), 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) [2022-07-13 02:09:10,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:10,214 INFO L93 Difference]: Finished difference Result 1218 states and 1259 transitions. [2022-07-13 02:09:10,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-07-13 02:09:10,215 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 112 states have (on average 2.2589285714285716) internal successors, (253), 113 states have internal predecessors, (253), 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 85 [2022-07-13 02:09:10,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:10,217 INFO L225 Difference]: With dead ends: 1218 [2022-07-13 02:09:10,217 INFO L226 Difference]: Without dead ends: 1204 [2022-07-13 02:09:10,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14383 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=8431, Invalid=29789, Unknown=0, NotChecked=0, Total=38220 [2022-07-13 02:09:10,219 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 994 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:10,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 144 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:09:10,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2022-07-13 02:09:10,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 538. [2022-07-13 02:09:10,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.0353817504655494) internal successors, (556), 537 states have internal predecessors, (556), 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) [2022-07-13 02:09:10,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 556 transitions. [2022-07-13 02:09:10,492 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 556 transitions. Word has length 85 [2022-07-13 02:09:10,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:10,492 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 556 transitions. [2022-07-13 02:09:10,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 112 states have (on average 2.2589285714285716) internal successors, (253), 113 states have internal predecessors, (253), 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) [2022-07-13 02:09:10,492 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 556 transitions. [2022-07-13 02:09:10,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-13 02:09:10,493 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:10,493 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1] [2022-07-13 02:09:10,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-07-13 02:09:10,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-07-13 02:09:10,695 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:09:10,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:10,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1145678342, now seen corresponding path program 1 times [2022-07-13 02:09:10,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:10,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947553129] [2022-07-13 02:09:10,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:10,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:11,289 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:11,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:11,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947553129] [2022-07-13 02:09:11,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947553129] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:09:11,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492551622] [2022-07-13 02:09:11,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:11,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:11,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:09:11,290 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:09:11,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-13 02:09:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:11,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 45 conjunts are in the unsatisfiable core [2022-07-13 02:09:11,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:09:12,363 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:12,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:09:13,670 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:13,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492551622] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:09:13,670 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:09:13,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 130 [2022-07-13 02:09:13,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639073857] [2022-07-13 02:09:13,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:09:13,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2022-07-13 02:09:13,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:13,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2022-07-13 02:09:13,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3132, Invalid=13898, Unknown=0, NotChecked=0, Total=17030 [2022-07-13 02:09:13,673 INFO L87 Difference]: Start difference. First operand 538 states and 556 transitions. Second operand has 131 states, 130 states have (on average 2.4076923076923076) internal successors, (313), 131 states have internal predecessors, (313), 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) [2022-07-13 02:09:17,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:17,539 INFO L93 Difference]: Finished difference Result 1165 states and 1226 transitions. [2022-07-13 02:09:17,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2022-07-13 02:09:17,541 INFO L78 Accepts]: Start accepts. Automaton has has 131 states, 130 states have (on average 2.4076923076923076) internal successors, (313), 131 states have internal predecessors, (313), 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 105 [2022-07-13 02:09:17,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:17,543 INFO L225 Difference]: With dead ends: 1165 [2022-07-13 02:09:17,543 INFO L226 Difference]: Without dead ends: 1142 [2022-07-13 02:09:17,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22521 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=11677, Invalid=46645, Unknown=0, NotChecked=0, Total=58322 [2022-07-13 02:09:17,547 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1176 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:17,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 165 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 02:09:17,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-07-13 02:09:17,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 648. [2022-07-13 02:09:17,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 647 states have (on average 1.052550231839258) internal successors, (681), 647 states have internal predecessors, (681), 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) [2022-07-13 02:09:17,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 681 transitions. [2022-07-13 02:09:17,837 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 681 transitions. Word has length 105 [2022-07-13 02:09:17,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:17,837 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 681 transitions. [2022-07-13 02:09:17,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 130 states have (on average 2.4076923076923076) internal successors, (313), 131 states have internal predecessors, (313), 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) [2022-07-13 02:09:17,837 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 681 transitions. [2022-07-13 02:09:17,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-13 02:09:17,838 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:17,838 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 12, 9, 9, 9, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1] [2022-07-13 02:09:17,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2022-07-13 02:09:18,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-07-13 02:09:18,043 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:09:18,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:18,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1299356552, now seen corresponding path program 7 times [2022-07-13 02:09:18,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:18,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094526485] [2022-07-13 02:09:18,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:18,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:18,943 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 0 proven. 669 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:18,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:18,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094526485] [2022-07-13 02:09:18,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094526485] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:09:18,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927815840] [2022-07-13 02:09:18,944 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-13 02:09:18,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:18,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:09:18,945 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:09:18,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-07-13 02:09:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:18,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 53 conjunts are in the unsatisfiable core [2022-07-13 02:09:18,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:09:20,365 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 0 proven. 669 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:20,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:09:22,108 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 0 proven. 669 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:22,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927815840] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:09:22,108 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:09:22,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52, 52] total 154 [2022-07-13 02:09:22,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884266687] [2022-07-13 02:09:22,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:09:22,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2022-07-13 02:09:22,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:22,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2022-07-13 02:09:22,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4308, Invalid=19562, Unknown=0, NotChecked=0, Total=23870 [2022-07-13 02:09:22,111 INFO L87 Difference]: Start difference. First operand 648 states and 681 transitions. Second operand has 155 states, 154 states have (on average 2.227272727272727) internal successors, (343), 155 states have internal predecessors, (343), 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) [2022-07-13 02:09:26,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:26,697 INFO L93 Difference]: Finished difference Result 1562 states and 1629 transitions. [2022-07-13 02:09:26,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2022-07-13 02:09:26,698 INFO L78 Accepts]: Start accepts. Automaton has has 155 states, 154 states have (on average 2.227272727272727) internal successors, (343), 155 states have internal predecessors, (343), 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 115 [2022-07-13 02:09:26,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:26,702 INFO L225 Difference]: With dead ends: 1562 [2022-07-13 02:09:26,702 INFO L226 Difference]: Without dead ends: 1542 [2022-07-13 02:09:26,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27974 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=15988, Invalid=56642, Unknown=0, NotChecked=0, Total=72630 [2022-07-13 02:09:26,705 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1387 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:26,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 215 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 02:09:26,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2022-07-13 02:09:27,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 648. [2022-07-13 02:09:27,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 647 states have (on average 1.052550231839258) internal successors, (681), 647 states have internal predecessors, (681), 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) [2022-07-13 02:09:27,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 681 transitions. [2022-07-13 02:09:27,063 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 681 transitions. Word has length 115 [2022-07-13 02:09:27,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:27,063 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 681 transitions. [2022-07-13 02:09:27,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 154 states have (on average 2.227272727272727) internal successors, (343), 155 states have internal predecessors, (343), 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) [2022-07-13 02:09:27,064 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 681 transitions. [2022-07-13 02:09:27,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-13 02:09:27,065 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:27,065 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 16, 11, 11, 11, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1] [2022-07-13 02:09:27,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-07-13 02:09:27,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-07-13 02:09:27,265 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:09:27,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:27,266 INFO L85 PathProgramCache]: Analyzing trace with hash 879423149, now seen corresponding path program 8 times [2022-07-13 02:09:27,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:27,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229265877] [2022-07-13 02:09:27,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:27,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:28,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:28,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:28,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229265877] [2022-07-13 02:09:28,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229265877] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:09:28,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903493138] [2022-07-13 02:09:28,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:09:28,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:28,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:09:28,489 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:09:28,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-07-13 02:09:28,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:09:28,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:09:28,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 67 conjunts are in the unsatisfiable core [2022-07-13 02:09:28,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:09:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:30,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:09:33,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:33,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903493138] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:09:33,298 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:09:33,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 196 [2022-07-13 02:09:33,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138666385] [2022-07-13 02:09:33,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:09:33,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 197 states [2022-07-13 02:09:33,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:33,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 197 interpolants. [2022-07-13 02:09:33,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6930, Invalid=31682, Unknown=0, NotChecked=0, Total=38612 [2022-07-13 02:09:33,305 INFO L87 Difference]: Start difference. First operand 648 states and 681 transitions. Second operand has 197 states, 196 states have (on average 2.2091836734693877) internal successors, (433), 197 states have internal predecessors, (433), 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) [2022-07-13 02:09:40,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:40,424 INFO L93 Difference]: Finished difference Result 1769 states and 1846 transitions. [2022-07-13 02:09:40,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2022-07-13 02:09:40,425 INFO L78 Accepts]: Start accepts. Automaton has has 197 states, 196 states have (on average 2.2091836734693877) internal successors, (433), 197 states have internal predecessors, (433), 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 145 [2022-07-13 02:09:40,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:40,429 INFO L225 Difference]: With dead ends: 1769 [2022-07-13 02:09:40,429 INFO L226 Difference]: Without dead ends: 1744 [2022-07-13 02:09:40,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 342 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46023 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=25950, Invalid=92042, Unknown=0, NotChecked=0, Total=117992 [2022-07-13 02:09:40,434 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2121 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:40,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2121 Valid, 250 Invalid, 1498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 02:09:40,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-07-13 02:09:40,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 718. [2022-07-13 02:09:40,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 717 states have (on average 1.0474198047419805) internal successors, (751), 717 states have internal predecessors, (751), 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) [2022-07-13 02:09:40,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 751 transitions. [2022-07-13 02:09:40,896 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 751 transitions. Word has length 145 [2022-07-13 02:09:40,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:40,897 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 751 transitions. [2022-07-13 02:09:40,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 197 states, 196 states have (on average 2.2091836734693877) internal successors, (433), 197 states have internal predecessors, (433), 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) [2022-07-13 02:09:40,897 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 751 transitions. [2022-07-13 02:09:40,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-13 02:09:40,899 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:40,899 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 21, 13, 13, 13, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-07-13 02:09:40,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2022-07-13 02:09:41,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:41,115 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:09:41,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:41,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1621560041, now seen corresponding path program 9 times [2022-07-13 02:09:41,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:41,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080965446] [2022-07-13 02:09:41,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:41,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:42,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1798 backedges. 0 proven. 1798 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:42,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:42,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080965446] [2022-07-13 02:09:42,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080965446] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:09:42,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323020619] [2022-07-13 02:09:42,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 02:09:42,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:42,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:09:42,878 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:09:42,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-07-13 02:09:42,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2022-07-13 02:09:42,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:09:42,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 83 conjunts are in the unsatisfiable core [2022-07-13 02:09:42,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:09:45,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1798 backedges. 0 proven. 1798 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:45,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:09:50,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1798 backedges. 0 proven. 1798 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:50,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323020619] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:09:50,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:09:50,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82, 82] total 244 [2022-07-13 02:09:50,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622949585] [2022-07-13 02:09:50,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:09:50,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 245 states [2022-07-13 02:09:50,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:50,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 245 interpolants. [2022-07-13 02:09:50,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10722, Invalid=49058, Unknown=0, NotChecked=0, Total=59780 [2022-07-13 02:09:50,010 INFO L87 Difference]: Start difference. First operand 718 states and 751 transitions. Second operand has 245 states, 244 states have (on average 2.192622950819672) internal successors, (535), 245 states have internal predecessors, (535), 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) [2022-07-13 02:10:00,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:10:00,453 INFO L93 Difference]: Finished difference Result 1797 states and 1886 transitions. [2022-07-13 02:10:00,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 266 states. [2022-07-13 02:10:00,454 INFO L78 Accepts]: Start accepts. Automaton has has 245 states, 244 states have (on average 2.192622950819672) internal successors, (535), 245 states have internal predecessors, (535), 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 179 [2022-07-13 02:10:00,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:10:00,458 INFO L225 Difference]: With dead ends: 1797 [2022-07-13 02:10:00,458 INFO L226 Difference]: Without dead ends: 1766 [2022-07-13 02:10:00,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 426 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71966 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=40293, Invalid=142463, Unknown=0, NotChecked=0, Total=182756 [2022-07-13 02:10:00,465 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2352 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 02:10:00,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 303 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 02:10:00,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2022-07-13 02:10:01,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 850. [2022-07-13 02:10:01,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 849 states have (on average 1.0400471142520613) internal successors, (883), 849 states have internal predecessors, (883), 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) [2022-07-13 02:10:01,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 883 transitions. [2022-07-13 02:10:01,026 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 883 transitions. Word has length 179 [2022-07-13 02:10:01,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:10:01,026 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 883 transitions. [2022-07-13 02:10:01,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 245 states, 244 states have (on average 2.192622950819672) internal successors, (535), 245 states have internal predecessors, (535), 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) [2022-07-13 02:10:01,026 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 883 transitions. [2022-07-13 02:10:01,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-13 02:10:01,029 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:10:01,029 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 15, 15, 15, 14, 14, 14, 13, 13, 2, 1, 1, 1, 1, 1] [2022-07-13 02:10:01,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-07-13 02:10:01,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-07-13 02:10:01,251 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:10:01,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:10:01,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1477703569, now seen corresponding path program 10 times [2022-07-13 02:10:01,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:10:01,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218781093] [2022-07-13 02:10:01,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:10:01,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:10:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:10:03,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2048 backedges. 0 proven. 2048 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:10:03,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:10:03,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218781093] [2022-07-13 02:10:03,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218781093] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:10:03,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581958860] [2022-07-13 02:10:03,215 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 02:10:03,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:10:03,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:10:03,216 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:10:03,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-07-13 02:10:03,346 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 02:10:03,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:10:03,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 87 conjunts are in the unsatisfiable core [2022-07-13 02:10:03,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:10:06,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2048 backedges. 0 proven. 2048 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:10:06,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:10:11,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2048 backedges. 0 proven. 2048 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:10:11,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581958860] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:10:11,246 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:10:11,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 86, 86] total 256 [2022-07-13 02:10:11,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478190160] [2022-07-13 02:10:11,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:10:11,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 257 states [2022-07-13 02:10:11,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:10:11,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 257 interpolants. [2022-07-13 02:10:11,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11638, Invalid=54154, Unknown=0, NotChecked=0, Total=65792 [2022-07-13 02:10:11,252 INFO L87 Difference]: Start difference. First operand 850 states and 883 transitions. Second operand has 257 states, 256 states have (on average 2.34765625) internal successors, (601), 257 states have internal predecessors, (601), 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) [2022-07-13 02:10:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:10:24,573 INFO L93 Difference]: Finished difference Result 1888 states and 2003 transitions. [2022-07-13 02:10:24,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-07-13 02:10:24,573 INFO L78 Accepts]: Start accepts. Automaton has has 257 states, 256 states have (on average 2.34765625) internal successors, (601), 257 states have internal predecessors, (601), 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 201 [2022-07-13 02:10:24,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:10:24,577 INFO L225 Difference]: With dead ends: 1888 [2022-07-13 02:10:24,577 INFO L226 Difference]: Without dead ends: 1844 [2022-07-13 02:10:24,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 474 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90363 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=44727, Invalid=181373, Unknown=0, NotChecked=0, Total=226100 [2022-07-13 02:10:24,644 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2714 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2714 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 2322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:10:24,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2714 Valid, 334 Invalid, 2322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 02:10:24,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2022-07-13 02:10:25,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1035. [2022-07-13 02:10:25,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1034 states have (on average 1.0570599613152805) internal successors, (1093), 1034 states have internal predecessors, (1093), 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) [2022-07-13 02:10:25,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1093 transitions. [2022-07-13 02:10:25,177 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1093 transitions. Word has length 201 [2022-07-13 02:10:25,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:10:25,177 INFO L495 AbstractCegarLoop]: Abstraction has 1035 states and 1093 transitions. [2022-07-13 02:10:25,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 257 states, 256 states have (on average 2.34765625) internal successors, (601), 257 states have internal predecessors, (601), 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) [2022-07-13 02:10:25,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1093 transitions. [2022-07-13 02:10:25,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-07-13 02:10:25,180 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:10:25,180 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 27, 15, 15, 15, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1] [2022-07-13 02:10:25,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-07-13 02:10:25,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-07-13 02:10:25,404 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:10:25,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:10:25,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1850806214, now seen corresponding path program 11 times [2022-07-13 02:10:25,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:10:25,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841745060] [2022-07-13 02:10:25,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:10:25,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:10:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:10:28,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2769 backedges. 0 proven. 2769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:10:28,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:10:28,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841745060] [2022-07-13 02:10:28,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841745060] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:10:28,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103575017] [2022-07-13 02:10:28,044 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-13 02:10:28,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:10:28,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:10:28,045 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:10:28,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-07-13 02:10:28,151 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 28 check-sat command(s) [2022-07-13 02:10:28,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:10:28,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 101 conjunts are in the unsatisfiable core [2022-07-13 02:10:28,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:10:32,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2769 backedges. 0 proven. 2769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:10:32,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:10:38,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2769 backedges. 0 proven. 2769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:10:38,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103575017] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:10:38,550 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:10:38,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 100, 100] total 298 [2022-07-13 02:10:38,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814336039] [2022-07-13 02:10:38,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:10:38,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 299 states [2022-07-13 02:10:38,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:10:38,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 299 interpolants. [2022-07-13 02:10:38,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16020, Invalid=73082, Unknown=0, NotChecked=0, Total=89102 [2022-07-13 02:10:38,557 INFO L87 Difference]: Start difference. First operand 1035 states and 1093 transitions. Second operand has 299 states, 298 states have (on average 2.1778523489932886) internal successors, (649), 299 states have internal predecessors, (649), 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) [2022-07-13 02:10:54,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:10:54,475 INFO L93 Difference]: Finished difference Result 2842 states and 2970 transitions. [2022-07-13 02:10:54,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 324 states. [2022-07-13 02:10:54,476 INFO L78 Accepts]: Start accepts. Automaton has has 299 states, 298 states have (on average 2.1778523489932886) internal successors, (649), 299 states have internal predecessors, (649), 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 217 [2022-07-13 02:10:54,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:10:54,483 INFO L225 Difference]: With dead ends: 2842 [2022-07-13 02:10:54,484 INFO L226 Difference]: Without dead ends: 2804 [2022-07-13 02:10:54,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 755 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 520 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107780 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=60211, Invalid=211751, Unknown=0, NotChecked=0, Total=271962 [2022-07-13 02:10:54,493 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3129 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3129 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 2256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:10:54,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3129 Valid, 359 Invalid, 2256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 02:10:54,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2022-07-13 02:10:55,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 1189. [2022-07-13 02:10:55,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 1188 states have (on average 1.0496632996632997) internal successors, (1247), 1188 states have internal predecessors, (1247), 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) [2022-07-13 02:10:55,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1247 transitions. [2022-07-13 02:10:55,195 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1247 transitions. Word has length 217 [2022-07-13 02:10:55,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:10:55,195 INFO L495 AbstractCegarLoop]: Abstraction has 1189 states and 1247 transitions. [2022-07-13 02:10:55,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 299 states, 298 states have (on average 2.1778523489932886) internal successors, (649), 299 states have internal predecessors, (649), 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) [2022-07-13 02:10:55,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1247 transitions. [2022-07-13 02:10:55,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-13 02:10:55,199 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:10:55,200 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 34, 17, 17, 17, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1] [2022-07-13 02:10:55,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2022-07-13 02:10:55,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-07-13 02:10:55,423 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:10:55,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:10:55,424 INFO L85 PathProgramCache]: Analyzing trace with hash -549109702, now seen corresponding path program 12 times [2022-07-13 02:10:55,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:10:55,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066914923] [2022-07-13 02:10:55,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:10:55,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:10:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:10:58,951 INFO L134 CoverageAnalysis]: Checked inductivity of 4119 backedges. 0 proven. 4119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:10:58,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:10:58,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066914923] [2022-07-13 02:10:58,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066914923] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:10:58,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496628287] [2022-07-13 02:10:58,952 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-13 02:10:58,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:10:58,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:10:58,953 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:10:58,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-07-13 02:10:59,080 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 35 check-sat command(s) [2022-07-13 02:10:59,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:10:59,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 121 conjunts are in the unsatisfiable core [2022-07-13 02:10:59,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:11:04,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4119 backedges. 0 proven. 4119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:11:04,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:11:13,398 INFO L134 CoverageAnalysis]: Checked inductivity of 4119 backedges. 0 proven. 4119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:11:13,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496628287] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:11:13,398 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:11:13,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [120, 120, 120] total 358 [2022-07-13 02:11:13,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075055969] [2022-07-13 02:11:13,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:11:13,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 359 states [2022-07-13 02:11:13,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:11:13,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 359 interpolants. [2022-07-13 02:11:13,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23208, Invalid=105314, Unknown=0, NotChecked=0, Total=128522 [2022-07-13 02:11:13,414 INFO L87 Difference]: Start difference. First operand 1189 states and 1247 transitions. Second operand has 359 states, 358 states have (on average 2.164804469273743) internal successors, (775), 359 states have internal predecessors, (775), 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) [2022-07-13 02:11:37,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:11:37,183 INFO L93 Difference]: Finished difference Result 3092 states and 3236 transitions. [2022-07-13 02:11:37,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 388 states. [2022-07-13 02:11:37,183 INFO L78 Accepts]: Start accepts. Automaton has has 359 states, 358 states have (on average 2.164804469273743) internal successors, (775), 359 states have internal predecessors, (775), 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 259 [2022-07-13 02:11:37,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:11:37,189 INFO L225 Difference]: With dead ends: 3092 [2022-07-13 02:11:37,189 INFO L226 Difference]: Without dead ends: 3046 [2022-07-13 02:11:37,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 903 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 624 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155834 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=87051, Invalid=304199, Unknown=0, NotChecked=0, Total=391250 [2022-07-13 02:11:37,203 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4204 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 2119 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4204 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 2643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 2119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:11:37,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4204 Valid, 418 Invalid, 2643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 2119 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 02:11:37,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2022-07-13 02:11:38,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 1365. [2022-07-13 02:11:38,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1364 states have (on average 1.0432551319648093) internal successors, (1423), 1364 states have internal predecessors, (1423), 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) [2022-07-13 02:11:38,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1423 transitions. [2022-07-13 02:11:38,041 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1423 transitions. Word has length 259 [2022-07-13 02:11:38,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:11:38,041 INFO L495 AbstractCegarLoop]: Abstraction has 1365 states and 1423 transitions. [2022-07-13 02:11:38,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 359 states, 358 states have (on average 2.164804469273743) internal successors, (775), 359 states have internal predecessors, (775), 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) [2022-07-13 02:11:38,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1423 transitions. [2022-07-13 02:11:38,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-07-13 02:11:38,044 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:11:38,044 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 29, 29, 29, 18, 18, 18, 17, 17, 12, 1, 1, 1, 1, 1] [2022-07-13 02:11:38,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-07-13 02:11:38,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:11:38,267 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:11:38,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:11:38,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1478483941, now seen corresponding path program 13 times [2022-07-13 02:11:38,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:11:38,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802606237] [2022-07-13 02:11:38,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:11:38,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:11:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:11:42,398 INFO L134 CoverageAnalysis]: Checked inductivity of 4374 backedges. 0 proven. 4374 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:11:42,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:11:42,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802606237] [2022-07-13 02:11:42,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802606237] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:11:42,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655168251] [2022-07-13 02:11:42,398 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-13 02:11:42,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:11:42,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:11:42,400 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:11:42,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-07-13 02:11:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:11:42,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 131 conjunts are in the unsatisfiable core [2022-07-13 02:11:42,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:11:49,172 INFO L134 CoverageAnalysis]: Checked inductivity of 4374 backedges. 0 proven. 4374 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:11:49,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:11:59,209 INFO L134 CoverageAnalysis]: Checked inductivity of 4374 backedges. 0 proven. 4374 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:11:59,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655168251] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:11:59,210 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:11:59,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 130, 130] total 388 [2022-07-13 02:11:59,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257355015] [2022-07-13 02:11:59,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:11:59,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 389 states [2022-07-13 02:11:59,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:11:59,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 389 interpolants. [2022-07-13 02:11:59,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25810, Invalid=125122, Unknown=0, NotChecked=0, Total=150932 [2022-07-13 02:11:59,227 INFO L87 Difference]: Start difference. First operand 1365 states and 1423 transitions. Second operand has 389 states, 388 states have (on average 2.2912371134020617) internal successors, (889), 389 states have internal predecessors, (889), 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)