./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.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 7a5d554c80523420ffafe318e54a94b7662019572fad78d6e8fce2ccc83674b0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 00:29:34,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 00:29:34,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 00:29:34,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 00:29:34,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 00:29:34,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 00:29:34,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 00:29:34,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 00:29:34,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 00:29:34,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 00:29:34,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 00:29:34,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 00:29:34,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 00:29:34,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 00:29:34,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 00:29:34,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 00:29:34,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 00:29:34,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 00:29:34,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 00:29:34,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 00:29:34,354 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 00:29:34,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 00:29:34,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 00:29:34,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 00:29:34,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 00:29:34,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 00:29:34,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 00:29:34,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 00:29:34,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 00:29:34,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 00:29:34,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 00:29:34,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 00:29:34,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 00:29:34,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 00:29:34,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 00:29:34,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 00:29:34,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 00:29:34,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 00:29:34,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 00:29:34,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 00:29:34,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 00:29:34,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 00:29:34,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-22 00:29:34,401 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 00:29:34,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 00:29:34,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 00:29:34,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 00:29:34,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 00:29:34,403 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 00:29:34,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 00:29:34,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 00:29:34,404 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 00:29:34,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 00:29:34,405 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 00:29:34,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 00:29:34,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 00:29:34,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 00:29:34,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 00:29:34,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 00:29:34,406 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 00:29:34,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 00:29:34,406 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 00:29:34,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 00:29:34,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 00:29:34,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 00:29:34,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 00:29:34,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:29:34,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 00:29:34,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 00:29:34,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 00:29:34,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 00:29:34,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 00:29:34,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 00:29:34,409 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a5d554c80523420ffafe318e54a94b7662019572fad78d6e8fce2ccc83674b0 [2022-07-22 00:29:34,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 00:29:34,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 00:29:34,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 00:29:34,740 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 00:29:34,743 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 00:29:34,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2022-07-22 00:29:34,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf2a6cbaa/4a08a4db68524cd3987d9b6591eb798b/FLAG4e3d3fc98 [2022-07-22 00:29:35,196 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 00:29:35,197 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2022-07-22 00:29:35,204 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf2a6cbaa/4a08a4db68524cd3987d9b6591eb798b/FLAG4e3d3fc98 [2022-07-22 00:29:35,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf2a6cbaa/4a08a4db68524cd3987d9b6591eb798b [2022-07-22 00:29:35,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 00:29:35,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 00:29:35,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 00:29:35,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 00:29:35,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 00:29:35,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:29:35" (1/1) ... [2022-07-22 00:29:35,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25122903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:35, skipping insertion in model container [2022-07-22 00:29:35,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:29:35" (1/1) ... [2022-07-22 00:29:35,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 00:29:35,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 00:29:35,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:29:35,809 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 00:29:35,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:29:35,832 INFO L208 MainTranslator]: Completed translation [2022-07-22 00:29:35,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:35 WrapperNode [2022-07-22 00:29:35,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 00:29:35,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 00:29:35,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 00:29:35,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 00:29:35,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:35" (1/1) ... [2022-07-22 00:29:35,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:35" (1/1) ... [2022-07-22 00:29:35,861 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-07-22 00:29:35,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 00:29:35,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 00:29:35,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 00:29:35,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 00:29:35,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:35" (1/1) ... [2022-07-22 00:29:35,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:35" (1/1) ... [2022-07-22 00:29:35,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:35" (1/1) ... [2022-07-22 00:29:35,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:35" (1/1) ... [2022-07-22 00:29:35,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:35" (1/1) ... [2022-07-22 00:29:35,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:35" (1/1) ... [2022-07-22 00:29:35,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:35" (1/1) ... [2022-07-22 00:29:35,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 00:29:35,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 00:29:35,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 00:29:35,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 00:29:35,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:35" (1/1) ... [2022-07-22 00:29:35,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:29:35,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:29:35,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 00:29:35,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 00:29:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 00:29:35,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 00:29:36,033 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 00:29:36,035 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 00:29:36,177 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 00:29:36,183 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 00:29:36,183 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 00:29:36,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:29:36 BoogieIcfgContainer [2022-07-22 00:29:36,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 00:29:36,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 00:29:36,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 00:29:36,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 00:29:36,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:29:35" (1/3) ... [2022-07-22 00:29:36,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9cf11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:29:36, skipping insertion in model container [2022-07-22 00:29:36,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:29:35" (2/3) ... [2022-07-22 00:29:36,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9cf11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:29:36, skipping insertion in model container [2022-07-22 00:29:36,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:29:36" (3/3) ... [2022-07-22 00:29:36,211 INFO L111 eAbstractionObserver]: Analyzing ICFG McCarthy91_Iteration.c [2022-07-22 00:29:36,223 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 00:29:36,239 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-07-22 00:29:36,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 00:29:36,298 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@28f148e7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@192002fe [2022-07-22 00:29:36,299 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-22 00:29:36,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:36,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-22 00:29:36,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:29:36,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-22 00:29:36,324 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:29:36,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:29:36,333 INFO L85 PathProgramCache]: Analyzing trace with hash 28700073, now seen corresponding path program 1 times [2022-07-22 00:29:36,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:29:36,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653364640] [2022-07-22 00:29:36,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:36,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:29:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:29:36,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:36,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:29:36,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653364640] [2022-07-22 00:29:36,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653364640] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:29:36,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:29:36,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:29:36,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958747444] [2022-07-22 00:29:36,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:29:36,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:29:36,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:29:36,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:29:36,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:29:36,515 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-07-22 00:29:36,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:29:36,569 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-07-22 00:29:36,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:29:36,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2022-07-22 00:29:36,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:29:36,578 INFO L225 Difference]: With dead ends: 28 [2022-07-22 00:29:36,579 INFO L226 Difference]: Without dead ends: 19 [2022-07-22 00:29:36,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:29:36,585 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:29:36,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 35 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:29:36,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-22 00:29:36,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-22 00:29:36,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:36,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-07-22 00:29:36,619 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 5 [2022-07-22 00:29:36,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:29:36,620 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-07-22 00:29:36,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-07-22 00:29:36,621 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-07-22 00:29:36,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-22 00:29:36,621 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:29:36,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-22 00:29:36,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 00:29:36,622 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:29:36,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:29:36,626 INFO L85 PathProgramCache]: Analyzing trace with hash 28699753, now seen corresponding path program 1 times [2022-07-22 00:29:36,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:29:36,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124634834] [2022-07-22 00:29:36,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:36,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:29:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:29:36,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:36,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:29:36,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124634834] [2022-07-22 00:29:36,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124634834] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:29:36,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:29:36,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:29:36,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415551960] [2022-07-22 00:29:36,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:29:36,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:29:36,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:29:36,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:29:36,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:29:36,666 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-07-22 00:29:36,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:29:36,706 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-07-22 00:29:36,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:29:36,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2022-07-22 00:29:36,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:29:36,708 INFO L225 Difference]: With dead ends: 28 [2022-07-22 00:29:36,709 INFO L226 Difference]: Without dead ends: 27 [2022-07-22 00:29:36,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:29:36,714 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:29:36,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:29:36,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-07-22 00:29:36,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2022-07-22 00:29:36,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:36,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2022-07-22 00:29:36,728 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 5 [2022-07-22 00:29:36,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:29:36,728 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-07-22 00:29:36,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-07-22 00:29:36,729 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-07-22 00:29:36,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-22 00:29:36,730 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:29:36,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-22 00:29:36,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 00:29:36,731 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:29:36,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:29:36,739 INFO L85 PathProgramCache]: Analyzing trace with hash 889702321, now seen corresponding path program 1 times [2022-07-22 00:29:36,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:29:36,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597967087] [2022-07-22 00:29:36,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:36,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:29:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:29:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:36,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:29:36,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597967087] [2022-07-22 00:29:36,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597967087] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:29:36,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:29:36,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:29:36,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756764763] [2022-07-22 00:29:36,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:29:36,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:29:36,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:29:36,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:29:36,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:29:36,786 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:36,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:29:36,804 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2022-07-22 00:29:36,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:29:36,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-22 00:29:36,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:29:36,806 INFO L225 Difference]: With dead ends: 25 [2022-07-22 00:29:36,806 INFO L226 Difference]: Without dead ends: 24 [2022-07-22 00:29:36,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:29:36,813 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:29:36,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 12 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:29:36,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-07-22 00:29:36,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-07-22 00:29:36,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:36,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-07-22 00:29:36,821 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 6 [2022-07-22 00:29:36,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:29:36,822 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-07-22 00:29:36,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:36,822 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-07-22 00:29:36,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-22 00:29:36,823 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:29:36,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-22 00:29:36,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 00:29:36,825 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:29:36,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:29:36,828 INFO L85 PathProgramCache]: Analyzing trace with hash 889692391, now seen corresponding path program 1 times [2022-07-22 00:29:36,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:29:36,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501225729] [2022-07-22 00:29:36,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:36,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:29:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:29:36,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:36,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:29:36,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501225729] [2022-07-22 00:29:36,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501225729] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:29:36,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:29:36,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:29:36,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086540117] [2022-07-22 00:29:36,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:29:36,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:29:36,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:29:36,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:29:36,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:29:36,870 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:36,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:29:36,882 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2022-07-22 00:29:36,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:29:36,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-22 00:29:36,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:29:36,884 INFO L225 Difference]: With dead ends: 24 [2022-07-22 00:29:36,885 INFO L226 Difference]: Without dead ends: 23 [2022-07-22 00:29:36,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:29:36,890 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:29:36,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:29:36,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-22 00:29:36,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-22 00:29:36,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.5) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:36,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-07-22 00:29:36,898 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 6 [2022-07-22 00:29:36,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:29:36,898 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-07-22 00:29:36,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:36,899 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-07-22 00:29:36,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-22 00:29:36,899 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:29:36,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:29:36,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 00:29:36,900 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:29:36,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:29:36,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1810968235, now seen corresponding path program 1 times [2022-07-22 00:29:36,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:29:36,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060536527] [2022-07-22 00:29:36,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:36,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:29:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:29:36,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:36,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:29:36,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060536527] [2022-07-22 00:29:36,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060536527] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:29:36,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:29:36,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:29:36,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500491094] [2022-07-22 00:29:36,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:29:36,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:29:36,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:29:36,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:29:36,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:29:36,948 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:36,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:29:36,977 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-07-22 00:29:36,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:29:36,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-22 00:29:36,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:29:36,979 INFO L225 Difference]: With dead ends: 29 [2022-07-22 00:29:36,979 INFO L226 Difference]: Without dead ends: 27 [2022-07-22 00:29:36,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:29:36,980 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:29:36,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 19 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:29:36,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-07-22 00:29:36,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2022-07-22 00:29:36,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.380952380952381) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:36,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-07-22 00:29:36,991 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 7 [2022-07-22 00:29:36,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:29:36,991 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-07-22 00:29:36,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:36,991 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-07-22 00:29:36,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 00:29:36,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:29:36,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:29:36,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 00:29:36,993 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:29:36,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:29:36,996 INFO L85 PathProgramCache]: Analyzing trace with hash 305440499, now seen corresponding path program 1 times [2022-07-22 00:29:36,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:29:36,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201321412] [2022-07-22 00:29:36,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:36,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:29:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:29:37,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:37,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:29:37,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201321412] [2022-07-22 00:29:37,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201321412] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:29:37,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:29:37,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:29:37,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60502316] [2022-07-22 00:29:37,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:29:37,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:29:37,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:29:37,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:29:37,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:29:37,018 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:37,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:29:37,031 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-07-22 00:29:37,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:29:37,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-22 00:29:37,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:29:37,032 INFO L225 Difference]: With dead ends: 28 [2022-07-22 00:29:37,033 INFO L226 Difference]: Without dead ends: 26 [2022-07-22 00:29:37,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 00:29:37,034 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:29:37,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:29:37,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-07-22 00:29:37,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-07-22 00:29:37,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:37,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-07-22 00:29:37,041 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 8 [2022-07-22 00:29:37,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:29:37,041 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-07-22 00:29:37,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:37,042 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-07-22 00:29:37,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 00:29:37,042 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:29:37,043 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:29:37,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 00:29:37,043 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:29:37,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:29:37,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1657753704, now seen corresponding path program 1 times [2022-07-22 00:29:37,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:29:37,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640466176] [2022-07-22 00:29:37,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:37,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:29:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:29:37,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:37,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:29:37,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640466176] [2022-07-22 00:29:37,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640466176] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:29:37,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:29:37,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:29:37,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922482162] [2022-07-22 00:29:37,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:29:37,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:29:37,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:29:37,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:29:37,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:29:37,103 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2022-07-22 00:29:37,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:29:37,132 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-07-22 00:29:37,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:29:37,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 [2022-07-22 00:29:37,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:29:37,133 INFO L225 Difference]: With dead ends: 24 [2022-07-22 00:29:37,133 INFO L226 Difference]: Without dead ends: 23 [2022-07-22 00:29:37,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:29:37,134 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:29:37,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 31 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:29:37,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-22 00:29:37,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-22 00:29:37,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:37,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-07-22 00:29:37,138 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 11 [2022-07-22 00:29:37,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:29:37,139 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-07-22 00:29:37,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2022-07-22 00:29:37,139 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-07-22 00:29:37,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 00:29:37,140 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:29:37,140 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-07-22 00:29:37,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 00:29:37,140 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:29:37,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:29:37,141 INFO L85 PathProgramCache]: Analyzing trace with hash 331866650, now seen corresponding path program 1 times [2022-07-22 00:29:37,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:29:37,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198142568] [2022-07-22 00:29:37,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:37,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:29:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:29:37,167 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:37,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:29:37,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198142568] [2022-07-22 00:29:37,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198142568] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:29:37,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927214499] [2022-07-22 00:29:37,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:37,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:29:37,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:29:37,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:29:37,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 00:29:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:29:37,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:29:37,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:29:37,255 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:37,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:29:37,290 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:37,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927214499] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:29:37,291 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:29:37,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-22 00:29:37,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766177790] [2022-07-22 00:29:37,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:29:37,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:29:37,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:29:37,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:29:37,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:29:37,293 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:37,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:29:37,336 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2022-07-22 00:29:37,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:29:37,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-22 00:29:37,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:29:37,337 INFO L225 Difference]: With dead ends: 64 [2022-07-22 00:29:37,337 INFO L226 Difference]: Without dead ends: 62 [2022-07-22 00:29:37,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:29:37,338 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 32 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:29:37,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 36 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:29:37,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-07-22 00:29:37,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 45. [2022-07-22 00:29:37,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 44 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:37,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2022-07-22 00:29:37,345 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 13 [2022-07-22 00:29:37,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:29:37,345 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2022-07-22 00:29:37,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:37,346 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-07-22 00:29:37,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-22 00:29:37,346 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:29:37,347 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1] [2022-07-22 00:29:37,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 00:29:37,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:29:37,571 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:29:37,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:29:37,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2065850599, now seen corresponding path program 2 times [2022-07-22 00:29:37,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:29:37,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568272932] [2022-07-22 00:29:37,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:37,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:29:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:29:37,677 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:37,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:29:37,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568272932] [2022-07-22 00:29:37,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568272932] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:29:37,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897906500] [2022-07-22 00:29:37,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:29:37,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:29:37,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:29:37,680 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:29:37,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 00:29:37,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:29:37,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:29:37,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 00:29:37,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:29:37,810 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:37,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:29:37,916 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:37,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897906500] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:29:37,917 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:29:37,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-22 00:29:37,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580896857] [2022-07-22 00:29:37,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:29:37,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 00:29:37,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:29:37,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 00:29:37,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:29:37,919 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:38,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:29:38,037 INFO L93 Difference]: Finished difference Result 184 states and 221 transitions. [2022-07-22 00:29:38,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 00:29:38,037 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 0 states have call successors, (0), 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 31 [2022-07-22 00:29:38,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:29:38,039 INFO L225 Difference]: With dead ends: 184 [2022-07-22 00:29:38,039 INFO L226 Difference]: Without dead ends: 182 [2022-07-22 00:29:38,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:29:38,046 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 78 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:29:38,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 74 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:29:38,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-07-22 00:29:38,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 105. [2022-07-22 00:29:38,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 103 states have (on average 1.1262135922330097) internal successors, (116), 104 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:38,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 116 transitions. [2022-07-22 00:29:38,074 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 116 transitions. Word has length 31 [2022-07-22 00:29:38,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:29:38,074 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 116 transitions. [2022-07-22 00:29:38,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:38,075 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 116 transitions. [2022-07-22 00:29:38,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-22 00:29:38,078 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:29:38,078 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 1, 1, 1] [2022-07-22 00:29:38,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 00:29:38,283 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 [2022-07-22 00:29:38,284 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:29:38,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:29:38,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1486781759, now seen corresponding path program 3 times [2022-07-22 00:29:38,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:29:38,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592543116] [2022-07-22 00:29:38,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:38,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:29:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:29:38,496 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:38,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:29:38,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592543116] [2022-07-22 00:29:38,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592543116] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:29:38,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832915919] [2022-07-22 00:29:38,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:29:38,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:29:38,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:29:38,500 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:29:38,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 00:29:38,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-22 00:29:38,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:29:38,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-22 00:29:38,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:29:38,669 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:38,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:29:38,906 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:38,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832915919] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:29:38,907 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:29:38,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-07-22 00:29:38,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446493851] [2022-07-22 00:29:38,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:29:38,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-22 00:29:38,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:29:38,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-22 00:29:38,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-22 00:29:38,911 INFO L87 Difference]: Start difference. First operand 105 states and 116 transitions. Second operand has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 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) [2022-07-22 00:29:39,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:29:39,115 INFO L93 Difference]: Finished difference Result 559 states and 659 transitions. [2022-07-22 00:29:39,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 00:29:39,116 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 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 67 [2022-07-22 00:29:39,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:29:39,118 INFO L225 Difference]: With dead ends: 559 [2022-07-22 00:29:39,118 INFO L226 Difference]: Without dead ends: 557 [2022-07-22 00:29:39,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-22 00:29:39,120 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 205 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:29:39,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 149 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:29:39,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-07-22 00:29:39,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 225. [2022-07-22 00:29:39,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 223 states have (on average 1.1121076233183858) internal successors, (248), 224 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:39,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 248 transitions. [2022-07-22 00:29:39,134 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 248 transitions. Word has length 67 [2022-07-22 00:29:39,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:29:39,135 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 248 transitions. [2022-07-22 00:29:39,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 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) [2022-07-22 00:29:39,135 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 248 transitions. [2022-07-22 00:29:39,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-22 00:29:39,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:29:39,139 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 1, 1, 1] [2022-07-22 00:29:39,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 00:29:39,355 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 [2022-07-22 00:29:39,356 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:29:39,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:29:39,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1299650421, now seen corresponding path program 4 times [2022-07-22 00:29:39,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:29:39,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639087905] [2022-07-22 00:29:39,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:39,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:29:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:29:39,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:39,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:29:39,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639087905] [2022-07-22 00:29:39,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639087905] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:29:39,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267066085] [2022-07-22 00:29:39,741 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-22 00:29:39,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:29:39,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:29:39,743 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:29:39,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 00:29:39,805 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-22 00:29:39,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:29:39,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-22 00:29:39,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:29:39,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:39,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:29:40,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:40,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267066085] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:29:40,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:29:40,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-07-22 00:29:40,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892088816] [2022-07-22 00:29:40,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:29:40,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-22 00:29:40,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:29:40,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-22 00:29:40,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-22 00:29:40,869 INFO L87 Difference]: Start difference. First operand 225 states and 248 transitions. Second operand has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:41,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:29:41,375 INFO L93 Difference]: Finished difference Result 1849 states and 2129 transitions. [2022-07-22 00:29:41,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-22 00:29:41,376 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 0 states have call successors, (0), 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 139 [2022-07-22 00:29:41,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:29:41,382 INFO L225 Difference]: With dead ends: 1849 [2022-07-22 00:29:41,383 INFO L226 Difference]: Without dead ends: 1847 [2022-07-22 00:29:41,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-22 00:29:41,385 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 698 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 00:29:41,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 290 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 00:29:41,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2022-07-22 00:29:41,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 465. [2022-07-22 00:29:41,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 463 states have (on average 1.1058315334773219) internal successors, (512), 464 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:41,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 512 transitions. [2022-07-22 00:29:41,409 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 512 transitions. Word has length 139 [2022-07-22 00:29:41,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:29:41,409 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 512 transitions. [2022-07-22 00:29:41,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:41,410 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 512 transitions. [2022-07-22 00:29:41,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-07-22 00:29:41,415 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:29:41,415 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 1, 1, 1] [2022-07-22 00:29:41,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 00:29:41,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:29:41,628 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:29:41,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:29:41,628 INFO L85 PathProgramCache]: Analyzing trace with hash 534086877, now seen corresponding path program 5 times [2022-07-22 00:29:41,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:29:41,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975552327] [2022-07-22 00:29:41,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:41,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:29:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:29:42,661 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:42,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:29:42,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975552327] [2022-07-22 00:29:42,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975552327] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:29:42,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7361424] [2022-07-22 00:29:42,662 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-22 00:29:42,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:29:42,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:29:42,663 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:29:42,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 00:29:42,789 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-22 00:29:42,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:29:42,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-22 00:29:42,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:29:43,208 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:43,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:29:45,929 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:45,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7361424] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:29:45,929 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:29:45,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-07-22 00:29:45,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443151874] [2022-07-22 00:29:45,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:29:45,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-07-22 00:29:45,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:29:45,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-07-22 00:29:45,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-22 00:29:45,938 INFO L87 Difference]: Start difference. First operand 465 states and 512 transitions. Second operand has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:48,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:29:48,203 INFO L93 Difference]: Finished difference Result 6589 states and 7445 transitions. [2022-07-22 00:29:48,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-07-22 00:29:48,204 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 0 states have call successors, (0), 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 283 [2022-07-22 00:29:48,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:29:48,229 INFO L225 Difference]: With dead ends: 6589 [2022-07-22 00:29:48,229 INFO L226 Difference]: Without dead ends: 6587 [2022-07-22 00:29:48,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-22 00:29:48,235 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1937 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 551 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 00:29:48,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1937 Valid, 576 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [551 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 00:29:48,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6587 states. [2022-07-22 00:29:48,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6587 to 945. [2022-07-22 00:29:48,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 943 states have (on average 1.1028632025450689) internal successors, (1040), 944 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:48,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1040 transitions. [2022-07-22 00:29:48,292 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1040 transitions. Word has length 283 [2022-07-22 00:29:48,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:29:48,292 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1040 transitions. [2022-07-22 00:29:48,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:29:48,301 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1040 transitions. [2022-07-22 00:29:48,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2022-07-22 00:29:48,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:29:48,312 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 1, 1, 1] [2022-07-22 00:29:48,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-22 00:29:48,526 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,SelfDestructingSolverStorable11 [2022-07-22 00:29:48,527 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:29:48,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:29:48,527 INFO L85 PathProgramCache]: Analyzing trace with hash 571436973, now seen corresponding path program 6 times [2022-07-22 00:29:48,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:29:48,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079777256] [2022-07-22 00:29:48,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:29:48,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:29:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:29:51,825 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:51,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:29:51,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079777256] [2022-07-22 00:29:51,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079777256] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:29:51,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175569283] [2022-07-22 00:29:51,826 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-22 00:29:51,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:29:51,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:29:51,832 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:29:51,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 00:29:52,042 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-22 00:29:52,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:29:52,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-22 00:29:52,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:29:52,758 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:29:52,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:30:01,367 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:30:01,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175569283] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:30:01,368 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:30:01,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-07-22 00:30:01,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946613344] [2022-07-22 00:30:01,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:30:01,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-07-22 00:30:01,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:30:01,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-07-22 00:30:01,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-07-22 00:30:01,383 INFO L87 Difference]: Start difference. First operand 945 states and 1040 transitions. Second operand has 192 states, 191 states have (on average 5.973821989528796) internal successors, (1141), 192 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:30:16,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:30:16,837 INFO L93 Difference]: Finished difference Result 24709 states and 27581 transitions. [2022-07-22 00:30:16,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-07-22 00:30:16,838 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.973821989528796) internal successors, (1141), 192 states have internal predecessors, (1141), 0 states have call successors, (0), 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 571 [2022-07-22 00:30:16,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:30:16,911 INFO L225 Difference]: With dead ends: 24709 [2022-07-22 00:30:16,912 INFO L226 Difference]: Without dead ends: 24707 [2022-07-22 00:30:16,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 1046 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-07-22 00:30:16,924 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3646 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 1059 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1059 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-22 00:30:16,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3646 Valid, 1158 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1059 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-22 00:30:16,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24707 states. [2022-07-22 00:30:17,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24707 to 1905. [2022-07-22 00:30:17,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1903 states have (on average 1.1014188124014714) internal successors, (2096), 1904 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:30:17,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2096 transitions. [2022-07-22 00:30:17,123 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2096 transitions. Word has length 571 [2022-07-22 00:30:17,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:30:17,124 INFO L495 AbstractCegarLoop]: Abstraction has 1905 states and 2096 transitions. [2022-07-22 00:30:17,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.973821989528796) internal successors, (1141), 192 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:30:17,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2096 transitions. [2022-07-22 00:30:17,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2022-07-22 00:30:17,159 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:30:17,160 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 190, 190, 1, 1, 1] [2022-07-22 00:30:17,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 00:30:17,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:30:17,380 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-22 00:30:17,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:30:17,380 INFO L85 PathProgramCache]: Analyzing trace with hash 569869645, now seen corresponding path program 7 times [2022-07-22 00:30:17,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:30:17,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70091048] [2022-07-22 00:30:17,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:30:17,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:30:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:30:29,406 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:30:29,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:30:29,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70091048] [2022-07-22 00:30:29,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70091048] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:30:29,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589226225] [2022-07-22 00:30:29,407 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-22 00:30:29,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:30:29,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:30:29,412 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 00:30:29,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 00:30:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:30:29,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 1914 conjuncts, 192 conjunts are in the unsatisfiable core [2022-07-22 00:30:29,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:30:30,903 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:30:30,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:31:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:31:04,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589226225] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:31:04,723 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:31:04,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-07-22 00:31:04,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612026555] [2022-07-22 00:31:04,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:31:04,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-07-22 00:31:04,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:31:04,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-07-22 00:31:04,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-07-22 00:31:04,753 INFO L87 Difference]: Start difference. First operand 1905 states and 2096 transitions. Second operand has 384 states, 383 states have (on average 5.986945169712794) internal successors, (2293), 384 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)