./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6ff697c57265298ce2261966fa58c440777fc865 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 15:09:15,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 15:09:15,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 15:09:15,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 15:09:15,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 15:09:15,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 15:09:15,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 15:09:15,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 15:09:15,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 15:09:15,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 15:09:15,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 15:09:15,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 15:09:15,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 15:09:15,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 15:09:15,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 15:09:15,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 15:09:15,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 15:09:15,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 15:09:15,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 15:09:15,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 15:09:15,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 15:09:15,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 15:09:15,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 15:09:15,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 15:09:15,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 15:09:15,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 15:09:15,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 15:09:15,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 15:09:15,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 15:09:15,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 15:09:15,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 15:09:15,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 15:09:15,510 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 15:09:15,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 15:09:15,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 15:09:15,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 15:09:15,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 15:09:15,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 15:09:15,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 15:09:15,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 15:09:15,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 15:09:15,517 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-07-06 15:09:15,539 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 15:09:15,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 15:09:15,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 15:09:15,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 15:09:15,542 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 15:09:15,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 15:09:15,542 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 15:09:15,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 15:09:15,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 15:09:15,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-06 15:09:15,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-06 15:09:15,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-06 15:09:15,543 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-07-06 15:09:15,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 15:09:15,544 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 15:09:15,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-06 15:09:15,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 15:09:15,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 15:09:15,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-06 15:09:15,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 15:09:15,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 15:09:15,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-06 15:09:15,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-06 15:09:15,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 15:09:15,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-06 15:09:15,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-06 15:09:15,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 15:09:15,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ff697c57265298ce2261966fa58c440777fc865 [2021-07-06 15:09:15,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 15:09:15,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 15:09:15,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 15:09:15,808 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 15:09:15,808 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 15:09:15,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2021-07-06 15:09:15,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49c9dc5c0/39c973fd43e04de3bebd32fe16c9aa87/FLAG66f0cbb07 [2021-07-06 15:09:16,170 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 15:09:16,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2021-07-06 15:09:16,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49c9dc5c0/39c973fd43e04de3bebd32fe16c9aa87/FLAG66f0cbb07 [2021-07-06 15:09:16,602 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49c9dc5c0/39c973fd43e04de3bebd32fe16c9aa87 [2021-07-06 15:09:16,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 15:09:16,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 15:09:16,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 15:09:16,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 15:09:16,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 15:09:16,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 03:09:16" (1/1) ... [2021-07-06 15:09:16,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38f88d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:09:16, skipping insertion in model container [2021-07-06 15:09:16,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 03:09:16" (1/1) ... [2021-07-06 15:09:16,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 15:09:16,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 15:09:16,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 15:09:16,722 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 15:09:16,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 15:09:16,738 INFO L208 MainTranslator]: Completed translation [2021-07-06 15:09:16,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:09:16 WrapperNode [2021-07-06 15:09:16,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 15:09:16,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 15:09:16,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 15:09:16,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 15:09:16,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:09:16" (1/1) ... [2021-07-06 15:09:16,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:09:16" (1/1) ... [2021-07-06 15:09:16,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 15:09:16,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 15:09:16,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 15:09:16,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 15:09:16,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:09:16" (1/1) ... [2021-07-06 15:09:16,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:09:16" (1/1) ... [2021-07-06 15:09:16,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:09:16" (1/1) ... [2021-07-06 15:09:16,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:09:16" (1/1) ... [2021-07-06 15:09:16,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:09:16" (1/1) ... [2021-07-06 15:09:16,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:09:16" (1/1) ... [2021-07-06 15:09:16,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:09:16" (1/1) ... [2021-07-06 15:09:16,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 15:09:16,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 15:09:16,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 15:09:16,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 15:09:16,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:09:16" (1/1) ... [2021-07-06 15:09:16,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 15:09:16,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 15:09:16,827 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 15:09:16,832 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 15:09:16,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 15:09:16,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 15:09:17,226 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 15:09:17,227 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-07-06 15:09:17,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:09:17 BoogieIcfgContainer [2021-07-06 15:09:17,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 15:09:17,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-06 15:09:17,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-06 15:09:17,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-06 15:09:17,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.07 03:09:16" (1/3) ... [2021-07-06 15:09:17,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a94f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 03:09:17, skipping insertion in model container [2021-07-06 15:09:17,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:09:16" (2/3) ... [2021-07-06 15:09:17,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a94f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 03:09:17, skipping insertion in model container [2021-07-06 15:09:17,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:09:17" (3/3) ... [2021-07-06 15:09:17,233 INFO L111 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig2.c [2021-07-06 15:09:17,238 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-06 15:09:17,238 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-07-06 15:09:17,270 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:09:17,280 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 15:09:17,280 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:09:17,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 58 states have (on average 1.7241379310344827) internal successors, (100), 64 states have internal predecessors, (100), 0 states have call successors, (0), 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 15:09:17,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-07-06 15:09:17,299 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:09:17,299 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-07-06 15:09:17,299 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:09:17,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:09:17,304 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2021-07-06 15:09:17,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:09:17,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485754938] [2021-07-06 15:09:17,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:09:17,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:09:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:09:17,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:17,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:09:17,383 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 15:09:17,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:09:17,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485754938] [2021-07-06 15:09:17,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485754938] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:09:17,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:09:17,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-06 15:09:17,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784304086] [2021-07-06 15:09:17,388 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 15:09:17,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:09:17,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 15:09:17,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:09:17,397 INFO L87 Difference]: Start difference. First operand has 65 states, 58 states have (on average 1.7241379310344827) internal successors, (100), 64 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 15:09:17,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:09:17,428 INFO L93 Difference]: Finished difference Result 69 states and 103 transitions. [2021-07-06 15:09:17,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 15:09:17,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-07-06 15:09:17,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:09:17,433 INFO L225 Difference]: With dead ends: 69 [2021-07-06 15:09:17,433 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:09:17,435 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:09:17,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:09:17,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:09:17,451 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 15:09:17,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:09:17,452 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2021-07-06 15:09:17,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:09:17,453 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:09:17,453 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 15:09:17,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:09:17,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:09:17,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:09:17,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,474 INFO L762 garLoopResultBuilder]: For program point L35-3(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,474 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,475 INFO L762 garLoopResultBuilder]: For program point L35-6(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,475 INFO L762 garLoopResultBuilder]: For program point L35-9(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,475 INFO L762 garLoopResultBuilder]: For program point L19(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,475 INFO L762 garLoopResultBuilder]: For program point L19-1(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,475 INFO L762 garLoopResultBuilder]: For program point L19-2(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,475 INFO L762 garLoopResultBuilder]: For program point L19-3(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,475 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:09:17,476 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,476 INFO L762 garLoopResultBuilder]: For program point L20-1(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,476 INFO L762 garLoopResultBuilder]: For program point L20-2(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,476 INFO L762 garLoopResultBuilder]: For program point L20-3(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,476 INFO L762 garLoopResultBuilder]: For program point L70(lines 70 72) no Hoare annotation was computed. [2021-07-06 15:09:17,476 INFO L762 garLoopResultBuilder]: For program point L70-2(lines 70 72) no Hoare annotation was computed. [2021-07-06 15:09:17,476 INFO L762 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,477 INFO L762 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,477 INFO L762 garLoopResultBuilder]: For program point L21-6(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,477 INFO L762 garLoopResultBuilder]: For program point L21-9(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,477 INFO L762 garLoopResultBuilder]: For program point L56(lines 56 58) no Hoare annotation was computed. [2021-07-06 15:09:17,477 INFO L762 garLoopResultBuilder]: For program point L56-2(lines 56 58) no Hoare annotation was computed. [2021-07-06 15:09:17,477 INFO L762 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,477 INFO L762 garLoopResultBuilder]: For program point L57-1(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,478 INFO L762 garLoopResultBuilder]: For program point L41(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,478 INFO L762 garLoopResultBuilder]: For program point L41-2(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,478 INFO L762 garLoopResultBuilder]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,478 INFO L762 garLoopResultBuilder]: For program point L41-5(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,478 INFO L762 garLoopResultBuilder]: For program point L41-6(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,478 INFO L762 garLoopResultBuilder]: For program point L41-8(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,478 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:09:17,479 INFO L762 garLoopResultBuilder]: For program point L41-9(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,479 INFO L762 garLoopResultBuilder]: For program point L41-11(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,479 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,479 INFO L762 garLoopResultBuilder]: For program point L76(lines 76 78) no Hoare annotation was computed. [2021-07-06 15:09:17,479 INFO L762 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,479 INFO L762 garLoopResultBuilder]: For program point L27-3(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,479 INFO L762 garLoopResultBuilder]: For program point L27-6(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,480 INFO L762 garLoopResultBuilder]: For program point L27-9(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,480 INFO L762 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,480 INFO L762 garLoopResultBuilder]: For program point L77-1(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,480 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,480 INFO L762 garLoopResultBuilder]: For program point L61(lines 61 63) no Hoare annotation was computed. [2021-07-06 15:09:17,480 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:09:17,480 INFO L762 garLoopResultBuilder]: For program point L61-2(lines 61 63) no Hoare annotation was computed. [2021-07-06 15:09:17,481 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,481 INFO L762 garLoopResultBuilder]: For program point L80-1(lines 52 84) no Hoare annotation was computed. [2021-07-06 15:09:17,481 INFO L762 garLoopResultBuilder]: For program point L80-2(lines 80 82) no Hoare annotation was computed. [2021-07-06 15:09:17,481 INFO L762 garLoopResultBuilder]: For program point L64(lines 64 66) no Hoare annotation was computed. [2021-07-06 15:09:17,481 INFO L762 garLoopResultBuilder]: For program point L64-2(lines 64 66) no Hoare annotation was computed. [2021-07-06 15:09:17,481 INFO L762 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,482 INFO L758 garLoopResultBuilder]: At program point L48(lines 17 49) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,482 INFO L762 garLoopResultBuilder]: For program point L81-1(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,482 INFO L758 garLoopResultBuilder]: At program point L48-1(lines 17 49) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,482 INFO L758 garLoopResultBuilder]: At program point L48-2(lines 17 49) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,482 INFO L758 garLoopResultBuilder]: At program point L48-3(lines 17 49) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,483 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,483 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,483 INFO L758 garLoopResultBuilder]: At program point L83(lines 52 84) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,483 INFO L762 garLoopResultBuilder]: For program point L67(lines 67 69) no Hoare annotation was computed. [2021-07-06 15:09:17,483 INFO L762 garLoopResultBuilder]: For program point L34(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,483 INFO L762 garLoopResultBuilder]: For program point L34-1(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,483 INFO L762 garLoopResultBuilder]: For program point L67-2(lines 67 69) no Hoare annotation was computed. [2021-07-06 15:09:17,484 INFO L762 garLoopResultBuilder]: For program point L34-2(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,484 INFO L762 garLoopResultBuilder]: For program point L34-3(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,484 INFO L762 garLoopResultBuilder]: For program point L35(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,484 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-06 15:09:17,484 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:09:17,487 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (1/6) [2021-07-06 15:09:17,489 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:09:17,490 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 15:09:17,490 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:09:17,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 58 states have (on average 1.7241379310344827) internal successors, (100), 64 states have internal predecessors, (100), 0 states have call successors, (0), 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 15:09:17,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-07-06 15:09:17,492 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:09:17,492 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-07-06 15:09:17,493 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:09:17,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:09:17,493 INFO L82 PathProgramCache]: Analyzing trace with hash 957349, now seen corresponding path program 1 times [2021-07-06 15:09:17,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:09:17,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297495941] [2021-07-06 15:09:17,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:09:17,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:09:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:09:17,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:17,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:09:17,504 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 15:09:17,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:09:17,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297495941] [2021-07-06 15:09:17,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297495941] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:09:17,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:09:17,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-06 15:09:17,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957463622] [2021-07-06 15:09:17,506 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 15:09:17,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:09:17,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 15:09:17,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:09:17,507 INFO L87 Difference]: Start difference. First operand has 65 states, 58 states have (on average 1.7241379310344827) internal successors, (100), 64 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 15:09:17,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:09:17,533 INFO L93 Difference]: Finished difference Result 127 states and 196 transitions. [2021-07-06 15:09:17,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 15:09:17,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-07-06 15:09:17,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:09:17,534 INFO L225 Difference]: With dead ends: 127 [2021-07-06 15:09:17,534 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:09:17,535 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:09:17,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:09:17,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:09:17,535 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 15:09:17,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:09:17,536 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-07-06 15:09:17,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:09:17,536 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:09:17,536 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 15:09:17,536 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:09:17,536 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:09:17,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:09:17,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,538 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,538 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,542 INFO L762 garLoopResultBuilder]: For program point L35-3(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,543 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,543 INFO L762 garLoopResultBuilder]: For program point L35-6(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,543 INFO L762 garLoopResultBuilder]: For program point L35-9(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,543 INFO L762 garLoopResultBuilder]: For program point L19(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,543 INFO L762 garLoopResultBuilder]: For program point L19-1(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,543 INFO L762 garLoopResultBuilder]: For program point L19-2(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,543 INFO L762 garLoopResultBuilder]: For program point L19-3(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,544 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:09:17,544 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,544 INFO L762 garLoopResultBuilder]: For program point L20-1(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,544 INFO L762 garLoopResultBuilder]: For program point L20-2(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,544 INFO L762 garLoopResultBuilder]: For program point L20-3(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,544 INFO L762 garLoopResultBuilder]: For program point L70(lines 70 72) no Hoare annotation was computed. [2021-07-06 15:09:17,544 INFO L762 garLoopResultBuilder]: For program point L70-2(lines 70 72) no Hoare annotation was computed. [2021-07-06 15:09:17,545 INFO L762 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,545 INFO L762 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,545 INFO L762 garLoopResultBuilder]: For program point L21-6(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,545 INFO L762 garLoopResultBuilder]: For program point L21-9(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,545 INFO L762 garLoopResultBuilder]: For program point L56(lines 56 58) no Hoare annotation was computed. [2021-07-06 15:09:17,545 INFO L762 garLoopResultBuilder]: For program point L56-2(lines 56 58) no Hoare annotation was computed. [2021-07-06 15:09:17,545 INFO L762 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,545 INFO L762 garLoopResultBuilder]: For program point L57-1(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,546 INFO L762 garLoopResultBuilder]: For program point L41(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,546 INFO L762 garLoopResultBuilder]: For program point L41-2(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,546 INFO L762 garLoopResultBuilder]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,546 INFO L762 garLoopResultBuilder]: For program point L41-5(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,546 INFO L762 garLoopResultBuilder]: For program point L41-6(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,546 INFO L762 garLoopResultBuilder]: For program point L41-8(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,546 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:09:17,547 INFO L762 garLoopResultBuilder]: For program point L41-9(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,547 INFO L762 garLoopResultBuilder]: For program point L41-11(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,547 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,547 INFO L762 garLoopResultBuilder]: For program point L76(lines 76 78) no Hoare annotation was computed. [2021-07-06 15:09:17,547 INFO L762 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,547 INFO L762 garLoopResultBuilder]: For program point L27-3(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,547 INFO L762 garLoopResultBuilder]: For program point L27-6(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,548 INFO L762 garLoopResultBuilder]: For program point L27-9(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,548 INFO L762 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,548 INFO L762 garLoopResultBuilder]: For program point L77-1(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,548 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,548 INFO L762 garLoopResultBuilder]: For program point L61(lines 61 63) no Hoare annotation was computed. [2021-07-06 15:09:17,548 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:09:17,548 INFO L762 garLoopResultBuilder]: For program point L61-2(lines 61 63) no Hoare annotation was computed. [2021-07-06 15:09:17,549 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,549 INFO L762 garLoopResultBuilder]: For program point L80-1(lines 52 84) no Hoare annotation was computed. [2021-07-06 15:09:17,549 INFO L762 garLoopResultBuilder]: For program point L80-2(lines 80 82) no Hoare annotation was computed. [2021-07-06 15:09:17,549 INFO L762 garLoopResultBuilder]: For program point L64(lines 64 66) no Hoare annotation was computed. [2021-07-06 15:09:17,549 INFO L762 garLoopResultBuilder]: For program point L64-2(lines 64 66) no Hoare annotation was computed. [2021-07-06 15:09:17,549 INFO L762 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,549 INFO L758 garLoopResultBuilder]: At program point L48(lines 17 49) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,550 INFO L762 garLoopResultBuilder]: For program point L81-1(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,550 INFO L758 garLoopResultBuilder]: At program point L48-1(lines 17 49) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,550 INFO L758 garLoopResultBuilder]: At program point L48-2(lines 17 49) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,550 INFO L758 garLoopResultBuilder]: At program point L48-3(lines 17 49) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,550 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,550 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,551 INFO L758 garLoopResultBuilder]: At program point L83(lines 52 84) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,551 INFO L762 garLoopResultBuilder]: For program point L67(lines 67 69) no Hoare annotation was computed. [2021-07-06 15:09:17,551 INFO L762 garLoopResultBuilder]: For program point L34(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,551 INFO L762 garLoopResultBuilder]: For program point L34-1(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,551 INFO L762 garLoopResultBuilder]: For program point L67-2(lines 67 69) no Hoare annotation was computed. [2021-07-06 15:09:17,551 INFO L762 garLoopResultBuilder]: For program point L34-2(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,551 INFO L762 garLoopResultBuilder]: For program point L34-3(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,551 INFO L762 garLoopResultBuilder]: For program point L35(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,552 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-06 15:09:17,552 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:09:17,552 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (2/6) [2021-07-06 15:09:17,553 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:09:17,554 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 15:09:17,554 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:09:17,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 58 states have (on average 1.7241379310344827) internal successors, (100), 64 states have internal predecessors, (100), 0 states have call successors, (0), 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 15:09:17,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-07-06 15:09:17,557 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:09:17,557 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:09:17,557 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:09:17,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:09:17,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1547423371, now seen corresponding path program 1 times [2021-07-06 15:09:17,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:09:17,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704225072] [2021-07-06 15:09:17,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:09:17,558 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:09:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:09:17,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:17,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:09:17,590 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 15:09:17,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:09:17,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704225072] [2021-07-06 15:09:17,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704225072] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:09:17,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:09:17,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-06 15:09:17,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730139688] [2021-07-06 15:09:17,594 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 15:09:17,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:09:17,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 15:09:17,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:09:17,596 INFO L87 Difference]: Start difference. First operand has 65 states, 58 states have (on average 1.7241379310344827) internal successors, (100), 64 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 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 15:09:17,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:09:17,618 INFO L93 Difference]: Finished difference Result 69 states and 103 transitions. [2021-07-06 15:09:17,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 15:09:17,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-07-06 15:09:17,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:09:17,619 INFO L225 Difference]: With dead ends: 69 [2021-07-06 15:09:17,619 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:09:17,620 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:09:17,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:09:17,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:09:17,621 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 15:09:17,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:09:17,621 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-07-06 15:09:17,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:09:17,621 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:09:17,621 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 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 15:09:17,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:09:17,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:09:17,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:09:17,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,637 INFO L762 garLoopResultBuilder]: For program point L35-3(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,639 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,639 INFO L762 garLoopResultBuilder]: For program point L35-6(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,639 INFO L762 garLoopResultBuilder]: For program point L35-9(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,639 INFO L762 garLoopResultBuilder]: For program point L19(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,639 INFO L762 garLoopResultBuilder]: For program point L19-1(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,639 INFO L762 garLoopResultBuilder]: For program point L19-2(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,639 INFO L762 garLoopResultBuilder]: For program point L19-3(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,640 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:09:17,640 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,640 INFO L762 garLoopResultBuilder]: For program point L20-1(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,641 INFO L762 garLoopResultBuilder]: For program point L20-2(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,641 INFO L762 garLoopResultBuilder]: For program point L20-3(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,641 INFO L762 garLoopResultBuilder]: For program point L70(lines 70 72) no Hoare annotation was computed. [2021-07-06 15:09:17,641 INFO L762 garLoopResultBuilder]: For program point L70-2(lines 70 72) no Hoare annotation was computed. [2021-07-06 15:09:17,641 INFO L762 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,641 INFO L762 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,641 INFO L762 garLoopResultBuilder]: For program point L21-6(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,642 INFO L762 garLoopResultBuilder]: For program point L21-9(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,642 INFO L762 garLoopResultBuilder]: For program point L56(lines 56 58) no Hoare annotation was computed. [2021-07-06 15:09:17,642 INFO L762 garLoopResultBuilder]: For program point L56-2(lines 56 58) no Hoare annotation was computed. [2021-07-06 15:09:17,642 INFO L762 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,642 INFO L762 garLoopResultBuilder]: For program point L57-1(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,643 INFO L762 garLoopResultBuilder]: For program point L41(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,644 INFO L762 garLoopResultBuilder]: For program point L41-2(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,644 INFO L762 garLoopResultBuilder]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,645 INFO L762 garLoopResultBuilder]: For program point L41-5(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,645 INFO L762 garLoopResultBuilder]: For program point L41-6(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,645 INFO L762 garLoopResultBuilder]: For program point L41-8(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,645 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:09:17,645 INFO L762 garLoopResultBuilder]: For program point L41-9(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,645 INFO L762 garLoopResultBuilder]: For program point L41-11(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,645 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,645 INFO L762 garLoopResultBuilder]: For program point L76(lines 76 78) no Hoare annotation was computed. [2021-07-06 15:09:17,646 INFO L762 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,647 INFO L762 garLoopResultBuilder]: For program point L27-3(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,647 INFO L762 garLoopResultBuilder]: For program point L27-6(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,647 INFO L762 garLoopResultBuilder]: For program point L27-9(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,647 INFO L762 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,647 INFO L762 garLoopResultBuilder]: For program point L77-1(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,647 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,648 INFO L762 garLoopResultBuilder]: For program point L61(lines 61 63) no Hoare annotation was computed. [2021-07-06 15:09:17,648 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:09:17,648 INFO L762 garLoopResultBuilder]: For program point L61-2(lines 61 63) no Hoare annotation was computed. [2021-07-06 15:09:17,648 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,649 INFO L762 garLoopResultBuilder]: For program point L80-1(lines 52 84) no Hoare annotation was computed. [2021-07-06 15:09:17,649 INFO L762 garLoopResultBuilder]: For program point L80-2(lines 80 82) no Hoare annotation was computed. [2021-07-06 15:09:17,649 INFO L762 garLoopResultBuilder]: For program point L64(lines 64 66) no Hoare annotation was computed. [2021-07-06 15:09:17,649 INFO L762 garLoopResultBuilder]: For program point L64-2(lines 64 66) no Hoare annotation was computed. [2021-07-06 15:09:17,649 INFO L762 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,650 INFO L758 garLoopResultBuilder]: At program point L48(lines 17 49) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,650 INFO L762 garLoopResultBuilder]: For program point L81-1(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,650 INFO L758 garLoopResultBuilder]: At program point L48-1(lines 17 49) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,650 INFO L758 garLoopResultBuilder]: At program point L48-2(lines 17 49) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,650 INFO L758 garLoopResultBuilder]: At program point L48-3(lines 17 49) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,650 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,651 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,651 INFO L758 garLoopResultBuilder]: At program point L83(lines 52 84) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,651 INFO L762 garLoopResultBuilder]: For program point L67(lines 67 69) no Hoare annotation was computed. [2021-07-06 15:09:17,651 INFO L762 garLoopResultBuilder]: For program point L34(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,651 INFO L762 garLoopResultBuilder]: For program point L34-1(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,653 INFO L762 garLoopResultBuilder]: For program point L67-2(lines 67 69) no Hoare annotation was computed. [2021-07-06 15:09:17,653 INFO L762 garLoopResultBuilder]: For program point L34-2(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,653 INFO L762 garLoopResultBuilder]: For program point L34-3(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,653 INFO L762 garLoopResultBuilder]: For program point L35(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,653 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-06 15:09:17,655 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:09:17,655 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (3/6) [2021-07-06 15:09:17,656 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:09:17,658 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 15:09:17,661 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:09:17,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 58 states have (on average 1.7241379310344827) internal successors, (100), 64 states have internal predecessors, (100), 0 states have call successors, (0), 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 15:09:17,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-06 15:09:17,663 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:09:17,663 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:09:17,664 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:09:17,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:09:17,666 INFO L82 PathProgramCache]: Analyzing trace with hash 725484490, now seen corresponding path program 1 times [2021-07-06 15:09:17,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:09:17,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896539446] [2021-07-06 15:09:17,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:09:17,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:09:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:09:17,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:17,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:09:17,685 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 15:09:17,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:09:17,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896539446] [2021-07-06 15:09:17,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896539446] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:09:17,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:09:17,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-06 15:09:17,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279132951] [2021-07-06 15:09:17,687 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 15:09:17,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:09:17,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 15:09:17,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:09:17,688 INFO L87 Difference]: Start difference. First operand has 65 states, 58 states have (on average 1.7241379310344827) internal successors, (100), 64 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:09:17,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:09:17,712 INFO L93 Difference]: Finished difference Result 127 states and 196 transitions. [2021-07-06 15:09:17,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 15:09:17,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-07-06 15:09:17,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:09:17,715 INFO L225 Difference]: With dead ends: 127 [2021-07-06 15:09:17,716 INFO L226 Difference]: Without dead ends: 53 [2021-07-06 15:09:17,716 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:09:17,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-07-06 15:09:17,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-07-06 15:09:17,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.6153846153846154) internal successors, (84), 52 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:09:17,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 84 transitions. [2021-07-06 15:09:17,725 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 84 transitions. Word has length 14 [2021-07-06 15:09:17,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:09:17,725 INFO L442 AbstractCegarLoop]: Abstraction has 53 states and 84 transitions. [2021-07-06 15:09:17,726 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:09:17,726 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 84 transitions. [2021-07-06 15:09:17,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-07-06 15:09:17,726 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:09:17,727 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:09:17,727 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-06 15:09:17,727 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:09:17,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:09:17,727 INFO L82 PathProgramCache]: Analyzing trace with hash -145038970, now seen corresponding path program 1 times [2021-07-06 15:09:17,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:09:17,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253122455] [2021-07-06 15:09:17,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:09:17,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:09:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:09:17,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:17,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:09:17,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:17,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:09:17,756 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 15:09:17,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:09:17,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253122455] [2021-07-06 15:09:17,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253122455] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:09:17,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:09:17,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 15:09:17,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470516021] [2021-07-06 15:09:17,760 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-06 15:09:17,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:09:17,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-06 15:09:17,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-06 15:09:17,760 INFO L87 Difference]: Start difference. First operand 53 states and 84 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 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 15:09:17,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:09:17,769 INFO L93 Difference]: Finished difference Result 53 states and 84 transitions. [2021-07-06 15:09:17,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-06 15:09:17,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-07-06 15:09:17,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:09:17,770 INFO L225 Difference]: With dead ends: 53 [2021-07-06 15:09:17,770 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:09:17,770 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-06 15:09:17,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:09:17,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:09:17,771 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 15:09:17,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:09:17,771 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-07-06 15:09:17,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:09:17,771 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:09:17,772 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 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 15:09:17,772 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:09:17,772 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:09:17,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:09:17,772 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:09:17,800 INFO L762 garLoopResultBuilder]: For program point L35-3(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,800 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,804 INFO L762 garLoopResultBuilder]: For program point L35-6(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,804 INFO L762 garLoopResultBuilder]: For program point L35-9(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,805 INFO L762 garLoopResultBuilder]: For program point L19(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,805 INFO L762 garLoopResultBuilder]: For program point L19-1(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,805 INFO L762 garLoopResultBuilder]: For program point L19-2(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,805 INFO L762 garLoopResultBuilder]: For program point L19-3(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,805 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:09:17,805 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,805 INFO L762 garLoopResultBuilder]: For program point L20-1(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,805 INFO L762 garLoopResultBuilder]: For program point L20-2(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,805 INFO L762 garLoopResultBuilder]: For program point L20-3(lines 20 32) no Hoare annotation was computed. [2021-07-06 15:09:17,806 INFO L762 garLoopResultBuilder]: For program point L70(lines 70 72) no Hoare annotation was computed. [2021-07-06 15:09:17,806 INFO L762 garLoopResultBuilder]: For program point L70-2(lines 70 72) no Hoare annotation was computed. [2021-07-06 15:09:17,806 INFO L762 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,806 INFO L762 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,806 INFO L762 garLoopResultBuilder]: For program point L21-6(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,806 INFO L762 garLoopResultBuilder]: For program point L21-9(lines 21 25) no Hoare annotation was computed. [2021-07-06 15:09:17,806 INFO L762 garLoopResultBuilder]: For program point L56(lines 56 58) no Hoare annotation was computed. [2021-07-06 15:09:17,806 INFO L762 garLoopResultBuilder]: For program point L56-2(lines 56 58) no Hoare annotation was computed. [2021-07-06 15:09:17,806 INFO L762 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,807 INFO L762 garLoopResultBuilder]: For program point L57-1(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,807 INFO L762 garLoopResultBuilder]: For program point L41(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,807 INFO L762 garLoopResultBuilder]: For program point L41-2(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,807 INFO L762 garLoopResultBuilder]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,807 INFO L762 garLoopResultBuilder]: For program point L41-5(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,807 INFO L762 garLoopResultBuilder]: For program point L41-6(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,807 INFO L762 garLoopResultBuilder]: For program point L41-8(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,807 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:09:17,807 INFO L762 garLoopResultBuilder]: For program point L41-9(lines 41 45) no Hoare annotation was computed. [2021-07-06 15:09:17,808 INFO L762 garLoopResultBuilder]: For program point L41-11(lines 19 47) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point L76(lines 76 78) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point L27-3(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point L27-6(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point L27-9(lines 27 31) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point L77-1(line 77) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point L61(lines 61 63) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point L61-2(lines 61 63) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point L80-1(lines 52 84) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point L80-2(lines 80 82) no Hoare annotation was computed. [2021-07-06 15:09:17,812 INFO L762 garLoopResultBuilder]: For program point L64(lines 64 66) no Hoare annotation was computed. [2021-07-06 15:09:17,813 INFO L762 garLoopResultBuilder]: For program point L64-2(lines 64 66) no Hoare annotation was computed. [2021-07-06 15:09:17,813 INFO L762 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,813 INFO L758 garLoopResultBuilder]: At program point L48(lines 17 49) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~d~0) (<= ULTIMATE.start_main_~d~0 1)) [2021-07-06 15:09:17,813 INFO L762 garLoopResultBuilder]: For program point L81-1(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,813 INFO L758 garLoopResultBuilder]: At program point L48-1(lines 17 49) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~d~0) (<= ULTIMATE.start_main_~d~0 1)) [2021-07-06 15:09:17,813 INFO L758 garLoopResultBuilder]: At program point L48-2(lines 17 49) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~d~0) (<= ULTIMATE.start_main_~d~0 1)) [2021-07-06 15:09:17,813 INFO L758 garLoopResultBuilder]: At program point L48-3(lines 17 49) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~d~0) (<= ULTIMATE.start_main_~d~0 1)) [2021-07-06 15:09:17,813 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,813 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 81) no Hoare annotation was computed. [2021-07-06 15:09:17,813 INFO L758 garLoopResultBuilder]: At program point L83(lines 52 84) the Hoare annotation is: (<= ULTIMATE.start_main_~d~0 1) [2021-07-06 15:09:17,813 INFO L762 garLoopResultBuilder]: For program point L67(lines 67 69) no Hoare annotation was computed. [2021-07-06 15:09:17,813 INFO L762 garLoopResultBuilder]: For program point L34(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,813 INFO L762 garLoopResultBuilder]: For program point L34-1(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,813 INFO L762 garLoopResultBuilder]: For program point L67-2(lines 67 69) no Hoare annotation was computed. [2021-07-06 15:09:17,813 INFO L762 garLoopResultBuilder]: For program point L34-2(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,813 INFO L762 garLoopResultBuilder]: For program point L34-3(lines 34 46) no Hoare annotation was computed. [2021-07-06 15:09:17,813 INFO L762 garLoopResultBuilder]: For program point L35(lines 35 39) no Hoare annotation was computed. [2021-07-06 15:09:17,814 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-06 15:09:17,814 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:09:17,814 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (4/6) [2021-07-06 15:09:17,815 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:09:17,815 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 15:09:17,817 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:09:17,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 58 states have (on average 1.7241379310344827) internal successors, (100), 64 states have internal predecessors, (100), 0 states have call successors, (0), 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 15:09:17,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-06 15:09:17,820 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:09:17,820 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:09:17,820 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:09:17,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:09:17,820 INFO L82 PathProgramCache]: Analyzing trace with hash 725490672, now seen corresponding path program 1 times [2021-07-06 15:09:17,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:09:17,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28090053] [2021-07-06 15:09:17,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:09:17,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:09:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:09:17,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:17,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:09:17,846 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 15:09:17,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:09:17,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28090053] [2021-07-06 15:09:17,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28090053] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:09:17,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:09:17,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-06 15:09:17,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599029822] [2021-07-06 15:09:17,847 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 15:09:17,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:09:17,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 15:09:17,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:09:17,848 INFO L87 Difference]: Start difference. First operand has 65 states, 58 states have (on average 1.7241379310344827) internal successors, (100), 64 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:09:17,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:09:17,871 INFO L93 Difference]: Finished difference Result 127 states and 196 transitions. [2021-07-06 15:09:17,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 15:09:17,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-07-06 15:09:17,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:09:17,873 INFO L225 Difference]: With dead ends: 127 [2021-07-06 15:09:17,873 INFO L226 Difference]: Without dead ends: 107 [2021-07-06 15:09:17,874 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:09:17,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-07-06 15:09:17,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2021-07-06 15:09:17,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.6601941747572815) internal successors, (171), 103 states have internal predecessors, (171), 0 states have call successors, (0), 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 15:09:17,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 171 transitions. [2021-07-06 15:09:17,882 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 171 transitions. Word has length 14 [2021-07-06 15:09:17,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:09:17,882 INFO L442 AbstractCegarLoop]: Abstraction has 104 states and 171 transitions. [2021-07-06 15:09:17,882 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:09:17,882 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 171 transitions. [2021-07-06 15:09:17,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-07-06 15:09:17,883 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:09:17,883 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:09:17,884 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-06 15:09:17,884 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:09:17,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:09:17,884 INFO L82 PathProgramCache]: Analyzing trace with hash -145032788, now seen corresponding path program 1 times [2021-07-06 15:09:17,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:09:17,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901481379] [2021-07-06 15:09:17,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:09:17,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:09:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:09:17,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:17,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:09:17,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:17,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:09:17,917 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 15:09:17,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:09:17,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901481379] [2021-07-06 15:09:17,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901481379] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:09:17,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:09:17,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 15:09:17,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293576683] [2021-07-06 15:09:17,919 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-06 15:09:17,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:09:17,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-06 15:09:17,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-06 15:09:17,920 INFO L87 Difference]: Start difference. First operand 104 states and 171 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 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 15:09:17,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:09:17,953 INFO L93 Difference]: Finished difference Result 110 states and 177 transitions. [2021-07-06 15:09:17,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-06 15:09:17,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-07-06 15:09:17,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:09:17,955 INFO L225 Difference]: With dead ends: 110 [2021-07-06 15:09:17,957 INFO L226 Difference]: Without dead ends: 109 [2021-07-06 15:09:17,957 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-06 15:09:17,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-07-06 15:09:17,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2021-07-06 15:09:17,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.6476190476190475) internal successors, (173), 105 states have internal predecessors, (173), 0 states have call successors, (0), 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 15:09:17,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 173 transitions. [2021-07-06 15:09:17,968 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 173 transitions. Word has length 16 [2021-07-06 15:09:17,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:09:17,969 INFO L442 AbstractCegarLoop]: Abstraction has 106 states and 173 transitions. [2021-07-06 15:09:17,969 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 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 15:09:17,969 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 173 transitions. [2021-07-06 15:09:17,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-07-06 15:09:17,972 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:09:17,972 INFO L525 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:09:17,972 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-06 15:09:17,972 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:09:17,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:09:17,973 INFO L82 PathProgramCache]: Analyzing trace with hash 817434134, now seen corresponding path program 1 times [2021-07-06 15:09:17,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:09:17,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716829236] [2021-07-06 15:09:17,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:09:17,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:09:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:09:18,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:09:18,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:09:18,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:09:18,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716829236] [2021-07-06 15:09:18,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716829236] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-06 15:09:18,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370350092] [2021-07-06 15:09:18,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:09:18,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-06 15:09:18,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 15:09:18,025 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 15:09:18,049 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 15:09:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:09:18,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-06 15:09:18,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 15:09:18,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:09:18,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-06 15:09:18,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:09:18,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-06 15:09:18,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:09:18,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:09:18,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 15:09:18,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 15:09:18,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:09:18,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 15:09:18,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 15:09:18,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 15:09:18,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 15:09:18,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 15:09:18,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 15:09:18,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 15:09:18,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:09:18,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 15:09:18,191 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 15:09:18,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370350092] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:09:18,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-06 15:09:18,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2021-07-06 15:09:18,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687635519] [2021-07-06 15:09:18,192 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-06 15:09:18,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:09:18,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-06 15:09:18,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-06 15:09:18,193 INFO L87 Difference]: Start difference. First operand 106 states and 173 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:09:18,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:09:18,223 INFO L93 Difference]: Finished difference Result 113 states and 180 transitions. [2021-07-06 15:09:18,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-06 15:09:18,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-07-06 15:09:18,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:09:18,228 INFO L225 Difference]: With dead ends: 113 [2021-07-06 15:09:18,228 INFO L226 Difference]: Without dead ends: 106 [2021-07-06 15:09:18,228 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.8ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-06 15:09:18,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-07-06 15:09:18,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-07-06 15:09:18,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.638095238095238) internal successors, (172), 105 states have internal predecessors, (172), 0 states have call successors, (0), 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 15:09:18,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 172 transitions. [2021-07-06 15:09:18,243 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 172 transitions. Word has length 17 [2021-07-06 15:09:18,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:09:18,243 INFO L442 AbstractCegarLoop]: Abstraction has 106 states and 172 transitions. [2021-07-06 15:09:18,243 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:09:18,243 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 172 transitions. [2021-07-06 15:09:18,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-06 15:09:18,247 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:09:18,247 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:09:18,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-07-06 15:09:18,448 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,SelfDestructingSolverStorable27 [2021-07-06 15:09:18,449 INFO L374 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:09:18,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:09:18,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1943488504, now seen corresponding path program 1 times [2021-07-06 15:09:18,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:09:18,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322631105] [2021-07-06 15:09:18,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:09:18,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:09:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 15:09:18,459 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 15:09:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 15:09:18,480 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 15:09:18,489 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 15:09:18,490 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-06 15:09:18,491 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-06 15:09:18,491 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:09:18,491 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW was UNSAFE (5/6) [2021-07-06 15:09:18,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.07 03:09:18 BoogieIcfgContainer [2021-07-06 15:09:18,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-06 15:09:18,511 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 15:09:18,511 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 15:09:18,511 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 15:09:18,511 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:09:17" (3/4) ... [2021-07-06 15:09:18,513 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-06 15:09:18,534 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 15:09:18,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 15:09:18,535 INFO L168 Benchmark]: Toolchain (without parser) took 1926.31 ms. Allocated memory was 58.7 MB in the beginning and 86.0 MB in the end (delta: 27.3 MB). Free memory was 37.8 MB in the beginning and 63.6 MB in the end (delta: -25.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:09:18,535 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 58.7 MB. Free memory is still 40.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:09:18,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 129.02 ms. Allocated memory is still 58.7 MB. Free memory was 37.7 MB in the beginning and 28.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 15:09:18,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.06 ms. Allocated memory is still 58.7 MB. Free memory was 28.7 MB in the beginning and 26.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 15:09:18,536 INFO L168 Benchmark]: Boogie Preprocessor took 40.70 ms. Allocated memory is still 58.7 MB. Free memory was 26.9 MB in the beginning and 42.4 MB in the end (delta: -15.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 15:09:18,536 INFO L168 Benchmark]: RCFGBuilder took 420.30 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 42.4 MB in the beginning and 49.6 MB in the end (delta: -7.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2021-07-06 15:09:18,536 INFO L168 Benchmark]: TraceAbstraction took 1281.17 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 49.0 MB in the beginning and 65.0 MB in the end (delta: -16.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. [2021-07-06 15:09:18,536 INFO L168 Benchmark]: Witness Printer took 23.72 ms. Allocated memory is still 86.0 MB. Free memory was 65.0 MB in the beginning and 63.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:09:18,537 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 58.7 MB. Free memory is still 40.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 129.02 ms. Allocated memory is still 58.7 MB. Free memory was 37.7 MB in the beginning and 28.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 26.06 ms. Allocated memory is still 58.7 MB. Free memory was 28.7 MB in the beginning and 26.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.70 ms. Allocated memory is still 58.7 MB. Free memory was 26.9 MB in the beginning and 42.4 MB in the end (delta: -15.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 420.30 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 42.4 MB in the beginning and 49.6 MB in the end (delta: -7.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1281.17 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 49.0 MB in the beginning and 65.0 MB in the end (delta: -16.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. * Witness Printer took 23.72 ms. Allocated memory is still 86.0 MB. Free memory was 65.0 MB in the beginning and 63.6 MB in the end (delta: 1.4 MB). There was no memory consumed. 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 - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 77]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 77]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - CounterExampleResult [Line: 81]: integer overflow possible integer overflow possible We found a FailurePath: [L53] int d = 1; [L54] int x = __VERIFIER_nondet_int(); [L56] COND TRUE __VERIFIER_nondet_int() [L57] EXPR d - 1 [L57] d = d - 1 [L61] COND FALSE !(__VERIFIER_nondet_int()) [L64] COND FALSE !(__VERIFIER_nondet_int()) [L67] COND FALSE !(__VERIFIER_nondet_int()) [L70] COND FALSE !(__VERIFIER_nondet_int()) [L76] COND TRUE __VERIFIER_nondet_int() [L77] EXPR d - 1 [L77] d = d - 1 [L80] COND TRUE x > 0 [L81] x - d - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 65 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 218.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.0ms, AutomataDifference: 45.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 16.9ms, InitialAbstractionConstructionTime: 10.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 87 SDtfs, 93 SDslu, 0 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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: 9.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 15 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 6.8ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 5.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 2.1ms SsaConstructionTime, 10.4ms SatisfiabilityAnalysisTime, 26.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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 1 procedures, 65 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 62.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.8ms, AutomataDifference: 28.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 5.8ms, InitialAbstractionConstructionTime: 1.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 88 SDtfs, 92 SDslu, 84 SDs, 0 SdLazy, 18 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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: 0.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 11 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 2.5ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4ms SsaConstructionTime, 1.9ms SatisfiabilityAnalysisTime, 6.7ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 65 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 101.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 1.2ms, AutomataDifference: 26.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 15.6ms, InitialAbstractionConstructionTime: 1.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 87 SDtfs, 83 SDslu, 0 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 5 PreInvPairs, 6 NumberOfFragments, 15 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 9.8ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 5.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6ms SsaConstructionTime, 3.8ms SatisfiabilityAnalysisTime, 26.7ms InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 65 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 157.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 1.9ms, AutomataDifference: 40.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 27.9ms, InitialAbstractionConstructionTime: 0.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 168 SDtfs, 152 SDslu, 162 SDs, 0 SdLazy, 23 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 11 NumberOfFragments, 13 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 7.8ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 19.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.5ms SsaConstructionTime, 9.0ms SatisfiabilityAnalysisTime, 31.7ms InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 65 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 676.2ms, OverallIterations: 4, TraceHistogramMax: 2, EmptinessCheckTime: 7.8ms, AutomataDifference: 101.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 252 SDtfs, 311 SDslu, 321 SDs, 0 SdLazy, 67 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 44.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 33.2ms AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.2ms SsaConstructionTime, 28.6ms SatisfiabilityAnalysisTime, 214.6ms InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 364 SizeOfPredicates, 0 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/4 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 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= d && d <= 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= d && d <= 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= d && d <= 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: d <= 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= d && d <= 1 RESULT: Ultimate proved your program to be incorrect! [2021-07-06 15:09:18,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...