./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/McCarthy91-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8d31f386 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/recursive/McCarthy91-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 90ff89d2ba0517af453003604f3ee5a230759bec ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 15:32:47,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 15:32:47,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 15:32:47,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 15:32:47,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 15:32:47,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 15:32:47,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 15:32:47,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 15:32:47,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 15:32:47,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 15:32:47,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 15:32:47,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 15:32:47,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 15:32:47,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 15:32:47,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 15:32:47,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 15:32:47,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 15:32:47,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 15:32:47,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 15:32:47,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 15:32:47,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 15:32:47,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 15:32:47,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 15:32:47,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 15:32:47,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 15:32:47,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 15:32:47,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 15:32:47,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 15:32:47,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 15:32:47,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 15:32:47,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 15:32:47,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 15:32:47,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 15:32:47,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 15:32:47,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 15:32:47,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 15:32:47,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 15:32:47,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 15:32:47,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 15:32:47,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 15:32:47,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 15:32:47,893 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-07-06 15:32:47,932 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 15:32:47,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 15:32:47,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 15:32:47,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 15:32:47,935 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 15:32:47,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 15:32:47,935 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 15:32:47,935 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 15:32:47,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 15:32:47,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 15:32:47,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 15:32:47,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-06 15:32:47,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-06 15:32:47,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-06 15:32:47,937 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-07-06 15:32:47,937 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 15:32:47,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 15:32:47,938 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 15:32:47,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-06 15:32:47,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 15:32:47,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 15:32:47,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-06 15:32:47,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 15:32:47,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 15:32:47,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-06 15:32:47,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-06 15:32:47,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 15:32:47,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-06 15:32:47,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-06 15:32:47,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 15:32:47,940 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90ff89d2ba0517af453003604f3ee5a230759bec [2021-07-06 15:32:48,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 15:32:48,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 15:32:48,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 15:32:48,257 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 15:32:48,258 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 15:32:48,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/McCarthy91-1.c [2021-07-06 15:32:48,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791870469/ffaeef9947e94850a5bbf6901ec4f2cf/FLAG5aa7d065e [2021-07-06 15:32:48,751 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 15:32:48,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c [2021-07-06 15:32:48,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791870469/ffaeef9947e94850a5bbf6901ec4f2cf/FLAG5aa7d065e [2021-07-06 15:32:49,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791870469/ffaeef9947e94850a5bbf6901ec4f2cf [2021-07-06 15:32:49,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 15:32:49,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 15:32:49,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 15:32:49,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 15:32:49,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 15:32:49,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 03:32:49" (1/1) ... [2021-07-06 15:32:49,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657c3c08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:32:49, skipping insertion in model container [2021-07-06 15:32:49,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 03:32:49" (1/1) ... [2021-07-06 15:32:49,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 15:32:49,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 15:32:49,328 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c[749,762] [2021-07-06 15:32:49,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 15:32:49,337 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 15:32:49,351 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c[749,762] [2021-07-06 15:32:49,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 15:32:49,365 INFO L208 MainTranslator]: Completed translation [2021-07-06 15:32:49,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:32:49 WrapperNode [2021-07-06 15:32:49,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 15:32:49,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 15:32:49,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 15:32:49,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 15:32:49,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:32:49" (1/1) ... [2021-07-06 15:32:49,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:32:49" (1/1) ... [2021-07-06 15:32:49,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 15:32:49,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 15:32:49,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 15:32:49,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 15:32:49,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:32:49" (1/1) ... [2021-07-06 15:32:49,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:32:49" (1/1) ... [2021-07-06 15:32:49,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:32:49" (1/1) ... [2021-07-06 15:32:49,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:32:49" (1/1) ... [2021-07-06 15:32:49,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:32:49" (1/1) ... [2021-07-06 15:32:49,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:32:49" (1/1) ... [2021-07-06 15:32:49,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:32:49" (1/1) ... [2021-07-06 15:32:49,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 15:32:49,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 15:32:49,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 15:32:49,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 15:32:49,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:32:49" (1/1) ... [2021-07-06 15:32:49,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 15:32:49,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 15:32:49,510 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) [2021-07-06 15:32:49,528 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 [2021-07-06 15:32:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 15:32:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 15:32:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 15:32:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 15:32:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2021-07-06 15:32:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2021-07-06 15:32:49,863 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 15:32:49,863 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-06 15:32:49,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:32:49 BoogieIcfgContainer [2021-07-06 15:32:49,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 15:32:49,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-06 15:32:49,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-06 15:32:49,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-06 15:32:49,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.07 03:32:49" (1/3) ... [2021-07-06 15:32:49,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a4d9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 03:32:49, skipping insertion in model container [2021-07-06 15:32:49,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:32:49" (2/3) ... [2021-07-06 15:32:49,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a4d9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 03:32:49, skipping insertion in model container [2021-07-06 15:32:49,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:32:49" (3/3) ... [2021-07-06 15:32:49,871 INFO L111 eAbstractionObserver]: Analyzing ICFG McCarthy91-1.c [2021-07-06 15:32:49,881 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-06 15:32:49,881 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-07-06 15:32:49,937 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:32:49,945 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:32:49,946 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:32:49,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-07-06 15:32:49,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-07-06 15:32:49,967 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:32:49,968 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:32:49,968 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:32:49,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:32:49,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1031924764, now seen corresponding path program 1 times [2021-07-06 15:32:49,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:32:49,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754456869] [2021-07-06 15:32:49,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:32:49,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:32:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:50,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:50,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:50,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-07-06 15:32:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:50,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:32:50,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:32:50,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754456869] [2021-07-06 15:32:50,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754456869] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:32:50,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:32:50,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 15:32:50,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279171245] [2021-07-06 15:32:50,209 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 15:32:50,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:32:50,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 15:32:50,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:32:50,223 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-06 15:32:50,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:32:50,262 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2021-07-06 15:32:50,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 15:32:50,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-07-06 15:32:50,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:32:50,270 INFO L225 Difference]: With dead ends: 35 [2021-07-06 15:32:50,270 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:32:50,275 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:32:50,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:32:50,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:32:50,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:50,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:32:50,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-07-06 15:32:50,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:32:50,295 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:32:50,295 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-06 15:32:50,295 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:32:50,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:32:50,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:32:50,309 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,312 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,348 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 15:32:50,349 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:32:50,349 INFO L762 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-07-06 15:32:50,349 INFO L762 garLoopResultBuilder]: For program point L29-2(line 29) no Hoare annotation was computed. [2021-07-06 15:32:50,350 INFO L762 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2021-07-06 15:32:50,350 INFO L762 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2021-07-06 15:32:50,350 INFO L762 garLoopResultBuilder]: For program point L29-6(line 29) no Hoare annotation was computed. [2021-07-06 15:32:50,350 INFO L762 garLoopResultBuilder]: For program point L29-7(lines 29 33) no Hoare annotation was computed. [2021-07-06 15:32:50,350 INFO L762 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-07-06 15:32:50,351 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-06 15:32:50,351 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 15:32:50,351 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:32:50,352 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:32:50,353 INFO L758 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-07-06 15:32:50,353 INFO L762 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-07-06 15:32:50,354 INFO L758 garLoopResultBuilder]: At program point L26(lines 26 34) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-07-06 15:32:50,354 INFO L762 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-07-06 15:32:50,354 INFO L762 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-07-06 15:32:50,355 INFO L762 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-07-06 15:32:50,355 INFO L765 garLoopResultBuilder]: At program point L21-2(line 21) the Hoare annotation is: true [2021-07-06 15:32:50,355 INFO L762 garLoopResultBuilder]: For program point f91EXIT(lines 17 23) no Hoare annotation was computed. [2021-07-06 15:32:50,355 INFO L762 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-07-06 15:32:50,356 INFO L762 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-07-06 15:32:50,356 INFO L762 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2021-07-06 15:32:50,356 INFO L765 garLoopResultBuilder]: At program point L21-4(line 21) the Hoare annotation is: true [2021-07-06 15:32:50,357 INFO L762 garLoopResultBuilder]: For program point L21-5(line 21) no Hoare annotation was computed. [2021-07-06 15:32:50,357 INFO L762 garLoopResultBuilder]: For program point f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-07-06 15:32:50,357 INFO L765 garLoopResultBuilder]: At program point f91ENTRY(lines 17 23) the Hoare annotation is: true [2021-07-06 15:32:50,357 INFO L762 garLoopResultBuilder]: For program point f91FINAL(lines 17 23) no Hoare annotation was computed. [2021-07-06 15:32:50,358 INFO L762 garLoopResultBuilder]: For program point f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-07-06 15:32:50,358 INFO L762 garLoopResultBuilder]: For program point f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-07-06 15:32:50,358 INFO L762 garLoopResultBuilder]: For program point f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-07-06 15:32:50,358 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-06 15:32:50,359 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:32:50,363 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (1/6) [2021-07-06 15:32:50,376 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:32:50,380 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:32:50,381 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:32:50,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-07-06 15:32:50,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-06 15:32:50,385 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:32:50,386 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:32:50,386 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:32:50,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:32:50,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1924896658, now seen corresponding path program 1 times [2021-07-06 15:32:50,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:32:50,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892594523] [2021-07-06 15:32:50,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:32:50,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:32:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:50,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:50,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-06 15:32:50,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:50,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-07-06 15:32:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:50,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:32:50,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:32:50,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892594523] [2021-07-06 15:32:50,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892594523] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:32:50,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:32:50,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 15:32:50,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549917575] [2021-07-06 15:32:50,461 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-06 15:32:50,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:32:50,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-06 15:32:50,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-06 15:32:50,462 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-06 15:32:50,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:32:50,499 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2021-07-06 15:32:50,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-06 15:32:50,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-07-06 15:32:50,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:32:50,501 INFO L225 Difference]: With dead ends: 42 [2021-07-06 15:32:50,501 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:32:50,503 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-06 15:32:50,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:32:50,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:32:50,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:50,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:32:50,505 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-07-06 15:32:50,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:32:50,505 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:32:50,505 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-06 15:32:50,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:32:50,506 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:32:50,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:32:50,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,510 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:50,522 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 15:32:50,523 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:32:50,523 INFO L762 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-07-06 15:32:50,523 INFO L762 garLoopResultBuilder]: For program point L29-2(line 29) no Hoare annotation was computed. [2021-07-06 15:32:50,523 INFO L762 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2021-07-06 15:32:50,524 INFO L762 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2021-07-06 15:32:50,524 INFO L762 garLoopResultBuilder]: For program point L29-6(line 29) no Hoare annotation was computed. [2021-07-06 15:32:50,524 INFO L762 garLoopResultBuilder]: For program point L29-7(lines 29 33) no Hoare annotation was computed. [2021-07-06 15:32:50,524 INFO L762 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-07-06 15:32:50,524 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-06 15:32:50,525 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 15:32:50,525 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:32:50,525 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:32:50,525 INFO L758 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-07-06 15:32:50,525 INFO L762 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-07-06 15:32:50,526 INFO L758 garLoopResultBuilder]: At program point L26(lines 26 34) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-07-06 15:32:50,526 INFO L762 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-07-06 15:32:50,526 INFO L762 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-07-06 15:32:50,526 INFO L762 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-07-06 15:32:50,526 INFO L765 garLoopResultBuilder]: At program point L21-2(line 21) the Hoare annotation is: true [2021-07-06 15:32:50,526 INFO L762 garLoopResultBuilder]: For program point f91EXIT(lines 17 23) no Hoare annotation was computed. [2021-07-06 15:32:50,528 INFO L762 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-07-06 15:32:50,530 INFO L762 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-07-06 15:32:50,530 INFO L762 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2021-07-06 15:32:50,530 INFO L765 garLoopResultBuilder]: At program point L21-4(line 21) the Hoare annotation is: true [2021-07-06 15:32:50,531 INFO L762 garLoopResultBuilder]: For program point L21-5(line 21) no Hoare annotation was computed. [2021-07-06 15:32:50,531 INFO L762 garLoopResultBuilder]: For program point f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-07-06 15:32:50,531 INFO L765 garLoopResultBuilder]: At program point f91ENTRY(lines 17 23) the Hoare annotation is: true [2021-07-06 15:32:50,531 INFO L762 garLoopResultBuilder]: For program point f91FINAL(lines 17 23) no Hoare annotation was computed. [2021-07-06 15:32:50,531 INFO L762 garLoopResultBuilder]: For program point f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-07-06 15:32:50,532 INFO L762 garLoopResultBuilder]: For program point f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-07-06 15:32:50,532 INFO L762 garLoopResultBuilder]: For program point f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-07-06 15:32:50,532 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-06 15:32:50,532 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:32:50,533 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (2/6) [2021-07-06 15:32:50,536 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:32:50,537 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:32:50,537 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:32:50,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-07-06 15:32:50,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-06 15:32:50,551 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:32:50,551 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-06 15:32:50,551 INFO L374 AbstractCegarLoop]: === Iteration 1 === [f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:32:50,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:32:50,552 INFO L82 PathProgramCache]: Analyzing trace with hash 890872146, now seen corresponding path program 1 times [2021-07-06 15:32:50,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:32:50,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055365465] [2021-07-06 15:32:50,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:32:50,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:32:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:50,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:50,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:50,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:50,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:50,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:32:50,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:32:50,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055365465] [2021-07-06 15:32:50,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055365465] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:32:50,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:32:50,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-06 15:32:50,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105066704] [2021-07-06 15:32:50,627 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-06 15:32:50,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:32:50,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-06 15:32:50,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-06 15:32:50,629 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:50,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:32:50,754 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2021-07-06 15:32:50,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-06 15:32:50,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-07-06 15:32:50,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:32:50,758 INFO L225 Difference]: With dead ends: 53 [2021-07-06 15:32:50,758 INFO L226 Difference]: Without dead ends: 25 [2021-07-06 15:32:50,760 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.9ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-06 15:32:50,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-07-06 15:32:50,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2021-07-06 15:32:50,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-07-06 15:32:50,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-07-06 15:32:50,779 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 6 [2021-07-06 15:32:50,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:32:50,780 INFO L442 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-07-06 15:32:50,780 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:50,780 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-07-06 15:32:50,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-06 15:32:50,781 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:32:50,781 INFO L525 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:32:50,781 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-06 15:32:50,783 INFO L374 AbstractCegarLoop]: === Iteration 2 === [f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:32:50,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:32:50,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1878050790, now seen corresponding path program 1 times [2021-07-06 15:32:50,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:32:50,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041305827] [2021-07-06 15:32:50,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:32:50,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:32:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:50,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:50,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:50,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:50,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:50,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:32:50,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:32:50,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041305827] [2021-07-06 15:32:50,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041305827] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:32:50,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:32:50,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-06 15:32:50,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240469854] [2021-07-06 15:32:50,845 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-06 15:32:50,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:32:50,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-06 15:32:50,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-06 15:32:50,846 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:50,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:32:50,923 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2021-07-06 15:32:50,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-06 15:32:50,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-07-06 15:32:50,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:32:50,924 INFO L225 Difference]: With dead ends: 40 [2021-07-06 15:32:50,925 INFO L226 Difference]: Without dead ends: 39 [2021-07-06 15:32:50,925 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.2ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-07-06 15:32:50,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-07-06 15:32:50,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2021-07-06 15:32:50,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-07-06 15:32:50,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2021-07-06 15:32:50,933 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 11 [2021-07-06 15:32:50,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:32:50,933 INFO L442 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-07-06 15:32:50,933 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:50,933 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2021-07-06 15:32:50,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-07-06 15:32:50,934 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:32:50,934 INFO L525 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:32:50,934 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-06 15:32:50,935 INFO L374 AbstractCegarLoop]: === Iteration 3 === [f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:32:50,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:32:50,935 INFO L82 PathProgramCache]: Analyzing trace with hash -865388299, now seen corresponding path program 1 times [2021-07-06 15:32:50,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:32:50,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270795419] [2021-07-06 15:32:50,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:32:50,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:32:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:50,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:50,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:50,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:50,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:50,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:50,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:50,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-07-06 15:32:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:51,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:32:51,027 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-06 15:32:51,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:32:51,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270795419] [2021-07-06 15:32:51,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270795419] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-06 15:32:51,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578248839] [2021-07-06 15:32:51,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:32:51,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-06 15:32:51,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 15:32:51,030 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) [2021-07-06 15:32:51,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-07-06 15:32:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:51,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-06 15:32:51,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 15:32:51,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:51,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:51,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:51,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:51,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:32:51,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:32:51,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-06 15:32:51,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:32:51,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:32:51,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-06 15:32:51,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:32:51,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:32:51,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-06 15:32:51,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:32:51,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:32:51,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-06 15:32:51,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:32:51,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:32:51,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:32:51,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-06 15:32:51,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:32:51,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 15:32:51,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:32:51,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 15:32:51,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:51,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:51,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 15:32:51,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:32:51,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 15:32:51,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-06 15:32:51,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:32:51,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:32:51,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:32:51,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:32:51,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:32:51,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:32:51,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:32:51,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 15:32:51,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-06 15:32:51,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:32:51,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:32:51,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 15:32:51,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-06 15:32:51,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-06 15:32:51,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:32:51,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:32:51,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-06 15:32:51,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:32:51,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:32:51,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-06 15:32:51,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:32:51,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:32:51,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:32:51,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-06 15:32:51,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:51,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:51,389 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:32:51,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578248839] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-06 15:32:51,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-06 15:32:51,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-07-06 15:32:51,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582040922] [2021-07-06 15:32:51,390 INFO L425 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-06 15:32:51,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:32:51,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-06 15:32:51,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-07-06 15:32:51,392 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 15 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 6 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-07-06 15:32:51,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:32:51,678 INFO L93 Difference]: Finished difference Result 53 states and 66 transitions. [2021-07-06 15:32:51,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-06 15:32:51,679 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 6 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2021-07-06 15:32:51,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:32:51,679 INFO L225 Difference]: With dead ends: 53 [2021-07-06 15:32:51,679 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:32:51,680 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 267.3ms TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2021-07-06 15:32:51,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:32:51,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:32:51,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:51,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:32:51,681 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-07-06 15:32:51,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:32:51,681 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:32:51,682 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 15 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 6 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-07-06 15:32:51,682 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:32:51,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:32:51,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:32:51,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:51,797 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 15:32:51,797 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:32:51,797 INFO L762 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-07-06 15:32:51,797 INFO L762 garLoopResultBuilder]: For program point L29-2(line 29) no Hoare annotation was computed. [2021-07-06 15:32:51,798 INFO L762 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2021-07-06 15:32:51,798 INFO L762 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2021-07-06 15:32:51,798 INFO L762 garLoopResultBuilder]: For program point L29-6(line 29) no Hoare annotation was computed. [2021-07-06 15:32:51,798 INFO L762 garLoopResultBuilder]: For program point L29-7(lines 29 33) no Hoare annotation was computed. [2021-07-06 15:32:51,798 INFO L762 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-07-06 15:32:51,798 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-06 15:32:51,798 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 15:32:51,798 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:32:51,799 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:32:51,799 INFO L758 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-07-06 15:32:51,799 INFO L762 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-07-06 15:32:51,799 INFO L758 garLoopResultBuilder]: At program point L26(lines 26 34) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-07-06 15:32:51,799 INFO L762 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-07-06 15:32:51,799 INFO L762 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-07-06 15:32:51,799 INFO L762 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-07-06 15:32:51,800 INFO L758 garLoopResultBuilder]: At program point L21-2(line 21) the Hoare annotation is: (or (not (<= |f91_#in~x| 2147483648)) (and (= f91_~x |f91_#in~x|) (<= f91_~x 100))) [2021-07-06 15:32:51,800 INFO L762 garLoopResultBuilder]: For program point f91EXIT(lines 17 23) no Hoare annotation was computed. [2021-07-06 15:32:51,800 INFO L762 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-07-06 15:32:51,800 INFO L762 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-07-06 15:32:51,800 INFO L762 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2021-07-06 15:32:51,800 INFO L758 garLoopResultBuilder]: At program point L21-4(line 21) the Hoare annotation is: (or (not (<= |f91_#in~x| 2147483648)) (and (<= |f91_#t~ret7| 2147483648) (= f91_~x |f91_#in~x|) (<= f91_~x 100))) [2021-07-06 15:32:51,800 INFO L762 garLoopResultBuilder]: For program point L21-5(line 21) no Hoare annotation was computed. [2021-07-06 15:32:51,801 INFO L762 garLoopResultBuilder]: For program point f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-07-06 15:32:51,801 INFO L765 garLoopResultBuilder]: At program point f91ENTRY(lines 17 23) the Hoare annotation is: true [2021-07-06 15:32:51,801 INFO L762 garLoopResultBuilder]: For program point f91FINAL(lines 17 23) no Hoare annotation was computed. [2021-07-06 15:32:51,801 INFO L762 garLoopResultBuilder]: For program point f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-07-06 15:32:51,801 INFO L762 garLoopResultBuilder]: For program point f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-07-06 15:32:51,801 INFO L762 garLoopResultBuilder]: For program point f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-07-06 15:32:51,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-07-06 15:32:52,021 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-07-06 15:32:52,024 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:32:52,025 INFO L303 ceAbstractionStarter]: Result for error location f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (3/6) [2021-07-06 15:32:52,026 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:32:52,026 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:32:52,027 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:32:52,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-07-06 15:32:52,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-07-06 15:32:52,028 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:32:52,028 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:32:52,028 INFO L374 AbstractCegarLoop]: === Iteration 1 === [f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:32:52,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:32:52,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1847232819, now seen corresponding path program 1 times [2021-07-06 15:32:52,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:32:52,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328906420] [2021-07-06 15:32:52,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:32:52,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:32:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:52,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:52,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:52,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:32:52,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:32:52,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328906420] [2021-07-06 15:32:52,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328906420] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:32:52,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:32:52,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 15:32:52,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899005070] [2021-07-06 15:32:52,045 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 15:32:52,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:32:52,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 15:32:52,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:32:52,046 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:52,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:32:52,058 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2021-07-06 15:32:52,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 15:32:52,059 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-07-06 15:32:52,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:32:52,059 INFO L225 Difference]: With dead ends: 37 [2021-07-06 15:32:52,059 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:32:52,060 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:32:52,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:32:52,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:32:52,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:52,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:32:52,060 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-07-06 15:32:52,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:32:52,061 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:32:52,061 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:52,061 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:32:52,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:32:52,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:32:52,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,071 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,071 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:32:52,071 INFO L762 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,071 INFO L762 garLoopResultBuilder]: For program point L29-2(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,071 INFO L762 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,072 INFO L762 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,072 INFO L762 garLoopResultBuilder]: For program point L29-6(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,072 INFO L762 garLoopResultBuilder]: For program point L29-7(lines 29 33) no Hoare annotation was computed. [2021-07-06 15:32:52,072 INFO L762 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-07-06 15:32:52,072 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-06 15:32:52,072 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,072 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:32:52,072 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:32:52,073 INFO L758 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-07-06 15:32:52,073 INFO L762 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-07-06 15:32:52,073 INFO L758 garLoopResultBuilder]: At program point L26(lines 26 34) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-07-06 15:32:52,073 INFO L762 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,073 INFO L762 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,073 INFO L762 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-07-06 15:32:52,073 INFO L758 garLoopResultBuilder]: At program point L21-2(line 21) the Hoare annotation is: (or (not (<= |f91_#in~x| 2147483648)) (and (= f91_~x |f91_#in~x|) (<= f91_~x 100))) [2021-07-06 15:32:52,074 INFO L762 garLoopResultBuilder]: For program point f91EXIT(lines 17 23) no Hoare annotation was computed. [2021-07-06 15:32:52,074 INFO L762 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-07-06 15:32:52,074 INFO L762 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-07-06 15:32:52,074 INFO L762 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,074 INFO L758 garLoopResultBuilder]: At program point L21-4(line 21) the Hoare annotation is: (or (not (<= |f91_#in~x| 2147483648)) (and (<= |f91_#t~ret7| 2147483648) (= f91_~x |f91_#in~x|) (<= f91_~x 100))) [2021-07-06 15:32:52,074 INFO L762 garLoopResultBuilder]: For program point L21-5(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,074 INFO L762 garLoopResultBuilder]: For program point f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-07-06 15:32:52,074 INFO L765 garLoopResultBuilder]: At program point f91ENTRY(lines 17 23) the Hoare annotation is: true [2021-07-06 15:32:52,075 INFO L762 garLoopResultBuilder]: For program point f91FINAL(lines 17 23) no Hoare annotation was computed. [2021-07-06 15:32:52,075 INFO L762 garLoopResultBuilder]: For program point f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-07-06 15:32:52,075 INFO L762 garLoopResultBuilder]: For program point f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,075 INFO L762 garLoopResultBuilder]: For program point f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,075 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-07-06 15:32:52,075 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:32:52,076 INFO L303 ceAbstractionStarter]: Result for error location f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (4/6) [2021-07-06 15:32:52,077 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:32:52,077 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:32:52,077 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:32:52,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-07-06 15:32:52,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-06 15:32:52,078 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:32:52,079 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-06 15:32:52,079 INFO L374 AbstractCegarLoop]: === Iteration 1 === [f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:32:52,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:32:52,079 INFO L82 PathProgramCache]: Analyzing trace with hash 890872306, now seen corresponding path program 1 times [2021-07-06 15:32:52,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:32:52,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876508514] [2021-07-06 15:32:52,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:32:52,080 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:32:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:52,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:52,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:52,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:32:52,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:32:52,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876508514] [2021-07-06 15:32:52,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876508514] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:32:52,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:32:52,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 15:32:52,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937311874] [2021-07-06 15:32:52,106 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 15:32:52,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:32:52,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 15:32:52,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:32:52,107 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:52,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:32:52,124 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2021-07-06 15:32:52,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 15:32:52,124 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-07-06 15:32:52,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:32:52,124 INFO L225 Difference]: With dead ends: 37 [2021-07-06 15:32:52,125 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:32:52,125 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:32:52,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:32:52,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:32:52,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:52,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:32:52,126 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-07-06 15:32:52,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:32:52,126 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:32:52,126 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:52,126 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:32:52,126 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:32:52,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:32:52,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,140 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,140 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:32:52,141 INFO L762 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,141 INFO L762 garLoopResultBuilder]: For program point L29-2(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,141 INFO L762 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,142 INFO L762 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,142 INFO L762 garLoopResultBuilder]: For program point L29-6(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,142 INFO L762 garLoopResultBuilder]: For program point L29-7(lines 29 33) no Hoare annotation was computed. [2021-07-06 15:32:52,142 INFO L762 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-07-06 15:32:52,142 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-06 15:32:52,142 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,142 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:32:52,142 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:32:52,142 INFO L758 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-07-06 15:32:52,142 INFO L762 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-07-06 15:32:52,143 INFO L758 garLoopResultBuilder]: At program point L26(lines 26 34) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-07-06 15:32:52,143 INFO L762 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,143 INFO L762 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,143 INFO L762 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-07-06 15:32:52,143 INFO L758 garLoopResultBuilder]: At program point L21-2(line 21) the Hoare annotation is: (let ((.cse0 (<= f91_~x 100))) (and (or (not (<= |f91_#in~x| 2147483648)) (and (= f91_~x |f91_#in~x|) .cse0)) .cse0)) [2021-07-06 15:32:52,143 INFO L762 garLoopResultBuilder]: For program point f91EXIT(lines 17 23) no Hoare annotation was computed. [2021-07-06 15:32:52,143 INFO L762 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-07-06 15:32:52,144 INFO L762 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-07-06 15:32:52,144 INFO L762 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,144 INFO L758 garLoopResultBuilder]: At program point L21-4(line 21) the Hoare annotation is: (let ((.cse0 (<= f91_~x 100))) (and .cse0 (or (not (<= |f91_#in~x| 2147483648)) (and (<= |f91_#t~ret7| 2147483648) (= f91_~x |f91_#in~x|) .cse0)))) [2021-07-06 15:32:52,144 INFO L762 garLoopResultBuilder]: For program point L21-5(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,144 INFO L762 garLoopResultBuilder]: For program point f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-07-06 15:32:52,144 INFO L765 garLoopResultBuilder]: At program point f91ENTRY(lines 17 23) the Hoare annotation is: true [2021-07-06 15:32:52,144 INFO L762 garLoopResultBuilder]: For program point f91FINAL(lines 17 23) no Hoare annotation was computed. [2021-07-06 15:32:52,144 INFO L762 garLoopResultBuilder]: For program point f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-07-06 15:32:52,144 INFO L762 garLoopResultBuilder]: For program point f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,145 INFO L762 garLoopResultBuilder]: For program point f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,145 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-07-06 15:32:52,149 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:32:52,149 INFO L303 ceAbstractionStarter]: Result for error location f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (5/6) [2021-07-06 15:32:52,156 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:32:52,157 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:32:52,157 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:32:52,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-07-06 15:32:52,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-07-06 15:32:52,159 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:32:52,159 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:32:52,160 INFO L374 AbstractCegarLoop]: === Iteration 1 === [f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:32:52,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:32:52,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1847237784, now seen corresponding path program 1 times [2021-07-06 15:32:52,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:32:52,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893474198] [2021-07-06 15:32:52,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:32:52,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:32:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:52,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:52,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:32:52,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:32:52,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:32:52,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:32:52,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:32:52,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893474198] [2021-07-06 15:32:52,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893474198] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:32:52,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:32:52,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-06 15:32:52,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501080398] [2021-07-06 15:32:52,200 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-06 15:32:52,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:32:52,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-06 15:32:52,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-06 15:32:52,201 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:52,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:32:52,273 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2021-07-06 15:32:52,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-06 15:32:52,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-07-06 15:32:52,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:32:52,277 INFO L225 Difference]: With dead ends: 53 [2021-07-06 15:32:52,277 INFO L226 Difference]: Without dead ends: 30 [2021-07-06 15:32:52,277 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.5ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-06 15:32:52,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-07-06 15:32:52,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2021-07-06 15:32:52,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-07-06 15:32:52,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-07-06 15:32:52,286 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 7 [2021-07-06 15:32:52,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:32:52,287 INFO L442 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-07-06 15:32:52,287 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:52,287 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-07-06 15:32:52,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-07-06 15:32:52,288 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:32:52,288 INFO L525 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:32:52,288 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-07-06 15:32:52,288 INFO L374 AbstractCegarLoop]: === Iteration 2 === [f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:32:52,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:32:52,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1057228459, now seen corresponding path program 1 times [2021-07-06 15:32:52,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:32:52,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763787066] [2021-07-06 15:32:52,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:32:52,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:32:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:52,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:52,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:52,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:52,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:52,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-07-06 15:32:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:52,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:52,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:52,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:52,362 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-06 15:32:52,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:32:52,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763787066] [2021-07-06 15:32:52,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763787066] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:32:52,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:32:52,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-06 15:32:52,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445493365] [2021-07-06 15:32:52,363 INFO L425 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-06 15:32:52,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:32:52,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-06 15:32:52,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-06 15:32:52,364 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-06 15:32:52,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:32:52,497 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2021-07-06 15:32:52,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-06 15:32:52,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-07-06 15:32:52,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:32:52,500 INFO L225 Difference]: With dead ends: 56 [2021-07-06 15:32:52,500 INFO L226 Difference]: Without dead ends: 55 [2021-07-06 15:32:52,501 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 67.2ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-07-06 15:32:52,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-07-06 15:32:52,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2021-07-06 15:32:52,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 35 states have (on average 1.1142857142857143) internal successors, (39), 39 states have internal predecessors, (39), 10 states have call successors, (10), 3 states have call predecessors, (10), 6 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2021-07-06 15:32:52,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2021-07-06 15:32:52,509 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 20 [2021-07-06 15:32:52,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:32:52,509 INFO L442 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2021-07-06 15:32:52,509 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-06 15:32:52,509 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2021-07-06 15:32:52,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-07-06 15:32:52,510 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:32:52,510 INFO L525 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-07-06 15:32:52,510 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-07-06 15:32:52,511 INFO L374 AbstractCegarLoop]: === Iteration 3 === [f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:32:52,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:32:52,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1543468454, now seen corresponding path program 1 times [2021-07-06 15:32:52,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:32:52,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197220572] [2021-07-06 15:32:52,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:32:52,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:32:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:52,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:52,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:52,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:52,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:52,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-07-06 15:32:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:52,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:52,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:52,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:52,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-07-06 15:32:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:52,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:52,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-07-06 15:32:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:32:52,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:32:52,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:52,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:32:52,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:32:52,594 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-07-06 15:32:52,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:32:52,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197220572] [2021-07-06 15:32:52,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197220572] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:32:52,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:32:52,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-06 15:32:52,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68090895] [2021-07-06 15:32:52,595 INFO L425 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-06 15:32:52,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:32:52,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-06 15:32:52,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-06 15:32:52,598 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-07-06 15:32:52,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:32:52,778 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2021-07-06 15:32:52,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-06 15:32:52,778 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2021-07-06 15:32:52,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:32:52,779 INFO L225 Difference]: With dead ends: 52 [2021-07-06 15:32:52,779 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:32:52,779 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 107.1ms TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2021-07-06 15:32:52,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:32:52,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:32:52,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:32:52,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:32:52,780 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2021-07-06 15:32:52,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:32:52,780 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:32:52,780 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-07-06 15:32:52,780 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:32:52,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:32:52,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:32:52,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:32:52,876 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,876 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:32:52,876 INFO L762 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,876 INFO L762 garLoopResultBuilder]: For program point L29-2(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,876 INFO L762 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,876 INFO L762 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,876 INFO L762 garLoopResultBuilder]: For program point L29-6(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,877 INFO L762 garLoopResultBuilder]: For program point L29-7(lines 29 33) no Hoare annotation was computed. [2021-07-06 15:32:52,877 INFO L762 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-07-06 15:32:52,877 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-06 15:32:52,877 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-07-06 15:32:52,877 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:32:52,877 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:32:52,877 INFO L758 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) [2021-07-06 15:32:52,877 INFO L762 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-07-06 15:32:52,877 INFO L758 garLoopResultBuilder]: At program point L26(lines 26 34) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) [2021-07-06 15:32:52,877 INFO L762 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,877 INFO L762 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,877 INFO L762 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-07-06 15:32:52,878 INFO L758 garLoopResultBuilder]: At program point L21-2(line 21) the Hoare annotation is: (let ((.cse0 (<= f91_~x 100))) (and (or (not (<= 91 |f91_#in~x|)) (<= 91 f91_~x)) (or (not (<= |f91_#in~x| 2147483648)) (and (= f91_~x |f91_#in~x|) .cse0)) (or (<= 0 (+ f91_~x 2147483648)) (not (<= 0 (+ |f91_#in~x| 2147483648)))) .cse0)) [2021-07-06 15:32:52,878 INFO L762 garLoopResultBuilder]: For program point f91EXIT(lines 17 23) no Hoare annotation was computed. [2021-07-06 15:32:52,878 INFO L762 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-07-06 15:32:52,878 INFO L762 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-07-06 15:32:52,878 INFO L762 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,878 INFO L758 garLoopResultBuilder]: At program point L21-4(line 21) the Hoare annotation is: (let ((.cse0 (<= f91_~x 100))) (and (or (not (<= 91 |f91_#in~x|)) (<= 91 f91_~x)) .cse0 (or (not (<= |f91_#in~x| 2147483648)) (and (<= |f91_#t~ret7| 2147483648) (= f91_~x |f91_#in~x|) .cse0)) (or (and (<= 91 |f91_#t~ret7|) (<= 0 (+ f91_~x 2147483648))) (not (<= 0 (+ |f91_#in~x| 2147483648)))))) [2021-07-06 15:32:52,878 INFO L762 garLoopResultBuilder]: For program point L21-5(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,878 INFO L762 garLoopResultBuilder]: For program point f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-07-06 15:32:52,878 INFO L765 garLoopResultBuilder]: At program point f91ENTRY(lines 17 23) the Hoare annotation is: true [2021-07-06 15:32:52,878 INFO L762 garLoopResultBuilder]: For program point f91FINAL(lines 17 23) no Hoare annotation was computed. [2021-07-06 15:32:52,878 INFO L762 garLoopResultBuilder]: For program point f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-07-06 15:32:52,879 INFO L762 garLoopResultBuilder]: For program point f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,879 INFO L762 garLoopResultBuilder]: For program point f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-07-06 15:32:52,879 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-07-06 15:32:52,879 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:32:52,879 INFO L303 ceAbstractionStarter]: Result for error location f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (6/6) [2021-07-06 15:32:52,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.07 03:32:52 BoogieIcfgContainer [2021-07-06 15:32:52,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-06 15:32:52,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 15:32:52,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 15:32:52,905 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 15:32:52,905 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:32:49" (3/4) ... [2021-07-06 15:32:52,909 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-06 15:32:52,915 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f91 [2021-07-06 15:32:52,921 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-07-06 15:32:52,921 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-07-06 15:32:52,921 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-06 15:32:52,921 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-06 15:32:52,951 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 15:32:52,951 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 15:32:52,952 INFO L168 Benchmark]: Toolchain (without parser) took 3781.11 ms. Allocated memory was 50.3 MB in the beginning and 88.1 MB in the end (delta: 37.7 MB). Free memory was 27.4 MB in the beginning and 58.5 MB in the end (delta: -31.1 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-07-06 15:32:52,952 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory is still 32.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:32:52,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.44 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.2 MB in the beginning and 43.9 MB in the end (delta: -16.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-06 15:32:52,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.28 ms. Allocated memory is still 60.8 MB. Free memory was 43.9 MB in the beginning and 44.9 MB in the end (delta: -1.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-07-06 15:32:52,953 INFO L168 Benchmark]: Boogie Preprocessor took 32.20 ms. Allocated memory is still 60.8 MB. Free memory was 44.9 MB in the beginning and 44.0 MB in the end (delta: 990.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:32:52,953 INFO L168 Benchmark]: RCFGBuilder took 388.25 ms. Allocated memory is still 60.8 MB. Free memory was 44.0 MB in the beginning and 30.3 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-07-06 15:32:52,953 INFO L168 Benchmark]: TraceAbstraction took 3038.32 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 29.9 MB in the beginning and 61.6 MB in the end (delta: -31.7 MB). Peak memory consumption was 35.8 MB. Max. memory is 16.1 GB. [2021-07-06 15:32:52,954 INFO L168 Benchmark]: Witness Printer took 46.30 ms. Allocated memory is still 88.1 MB. Free memory was 61.6 MB in the beginning and 58.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 15:32:52,955 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory is still 32.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 195.44 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.2 MB in the beginning and 43.9 MB in the end (delta: -16.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.28 ms. Allocated memory is still 60.8 MB. Free memory was 43.9 MB in the beginning and 44.9 MB in the end (delta: -1.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.20 ms. Allocated memory is still 60.8 MB. Free memory was 44.9 MB in the beginning and 44.0 MB in the end (delta: 990.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 388.25 ms. Allocated memory is still 60.8 MB. Free memory was 44.0 MB in the beginning and 30.3 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3038.32 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 29.9 MB in the beginning and 61.6 MB in the end (delta: -31.7 MB). Peak memory consumption was 35.8 MB. Max. memory is 16.1 GB. * Witness Printer took 46.30 ms. Allocated memory is still 88.1 MB. Free memory was 61.6 MB in the beginning and 58.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 2 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 427.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 13.3ms, AutomataDifference: 65.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 44.7ms, InitialAbstractionConstructionTime: 12.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 31 SDtfs, 10 SDslu, 20 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 9 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 20.5ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 16.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 11.4ms SsaConstructionTime, 35.4ms SatisfiabilityAnalysisTime, 114.5ms InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 2 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 156.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 3.5ms, AutomataDifference: 42.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 16.3ms, InitialAbstractionConstructionTime: 1.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 36 SDtfs, 17 SDslu, 25 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 5 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 10.3ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 4.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.3ms SsaConstructionTime, 9.7ms SatisfiabilityAnalysisTime, 55.4ms InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 2 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1488.6ms, OverallIterations: 3, TraceHistogramMax: 3, EmptinessCheckTime: 6.4ms, AutomataDifference: 501.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 114.4ms, InitialAbstractionConstructionTime: 8.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 56 SDtfs, 130 SDslu, 112 SDs, 0 SdLazy, 203 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 210.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 327.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=2, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 27.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 5 LocationsWithAnnotation, 32 PreInvPairs, 43 NumberOfFragments, 34 HoareAnnotationTreeSize, 32 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 46.4ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 185 FormulaSimplificationTreeSizeReductionInter, 65.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 12.5ms SsaConstructionTime, 61.1ms SatisfiabilityAnalysisTime, 464.3ms InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 4 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 8/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 2 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 49.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.8ms, AutomataDifference: 14.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 9.4ms, InitialAbstractionConstructionTime: 0.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 32 SDtfs, 3 SDslu, 25 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 5 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 5.0ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6ms SsaConstructionTime, 3.0ms SatisfiabilityAnalysisTime, 8.9ms InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 2 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 72.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.6ms, AutomataDifference: 19.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 12.8ms, InitialAbstractionConstructionTime: 0.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 36 SDtfs, 6 SDslu, 22 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 9 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 7.1ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 5.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6ms SsaConstructionTime, 13.1ms SatisfiabilityAnalysisTime, 10.5ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 2 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 727.5ms, OverallIterations: 3, TraceHistogramMax: 5, EmptinessCheckTime: 2.3ms, AutomataDifference: 398.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 95.3ms, InitialAbstractionConstructionTime: 1.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 56 SDtfs, 82 SDslu, 161 SDs, 0 SdLazy, 221 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 158.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 191.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=2, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 17.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 5 LocationsWithAnnotation, 32 PreInvPairs, 33 NumberOfFragments, 57 HoareAnnotationTreeSize, 32 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 27.3ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 22 FormulaSimplificationTreeSizeReductionInter, 66.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 3.4ms SsaConstructionTime, 27.4ms SatisfiabilityAnalysisTime, 156.3ms InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 45/45 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: x <= 2147483647 && 0 <= x + 2147483648 RESULT: Ultimate proved your program to be correct! [2021-07-06 15:32:52,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...