./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/AllInterval-006.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/xcsp/AllInterval-006.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50c5e818ba05d4e8fa241dc9220a809d016175eb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 13:06:45,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 13:06:45,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 13:06:45,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 13:06:45,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 13:06:45,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 13:06:45,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 13:06:45,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 13:06:45,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 13:06:45,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 13:06:45,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 13:06:45,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 13:06:45,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 13:06:45,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 13:06:45,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 13:06:45,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 13:06:45,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 13:06:45,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 13:06:45,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 13:06:45,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 13:06:45,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 13:06:45,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 13:06:45,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 13:06:45,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 13:06:45,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 13:06:45,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 13:06:45,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 13:06:45,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 13:06:45,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 13:06:45,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 13:06:45,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 13:06:45,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 13:06:45,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 13:06:45,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 13:06:45,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 13:06:45,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 13:06:45,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 13:06:45,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 13:06:45,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 13:06:45,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 13:06:45,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 13:06:45,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 13:06:45,430 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 13:06:45,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 13:06:45,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 13:06:45,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 13:06:45,432 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 13:06:45,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 13:06:45,433 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 13:06:45,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 13:06:45,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 13:06:45,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 13:06:45,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 13:06:45,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 13:06:45,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 13:06:45,434 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 13:06:45,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 13:06:45,435 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 13:06:45,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 13:06:45,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 13:06:45,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 13:06:45,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 13:06:45,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 13:06:45,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 13:06:45,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 13:06:45,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 13:06:45,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 13:06:45,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 13:06:45,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 13:06:45,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 13:06:45,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50c5e818ba05d4e8fa241dc9220a809d016175eb [2021-07-05 13:06:45,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 13:06:45,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 13:06:45,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 13:06:45,716 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 13:06:45,717 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 13:06:45,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/AllInterval-006.c [2021-07-05 13:06:45,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045238cd2/a3b823ecf8e244f9bc51e8d19caff9b9/FLAG48ac8c41a [2021-07-05 13:06:46,235 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 13:06:46,235 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-006.c [2021-07-05 13:06:46,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045238cd2/a3b823ecf8e244f9bc51e8d19caff9b9/FLAG48ac8c41a [2021-07-05 13:06:46,289 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045238cd2/a3b823ecf8e244f9bc51e8d19caff9b9 [2021-07-05 13:06:46,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 13:06:46,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 13:06:46,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 13:06:46,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 13:06:46,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 13:06:46,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 01:06:46" (1/1) ... [2021-07-05 13:06:46,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be104fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 01:06:46, skipping insertion in model container [2021-07-05 13:06:46,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 01:06:46" (1/1) ... [2021-07-05 13:06:46,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 13:06:46,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 13:06:46,502 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-006.c[3098,3111] [2021-07-05 13:06:46,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 13:06:46,520 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 13:06:46,596 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-006.c[3098,3111] [2021-07-05 13:06:46,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 13:06:46,622 INFO L208 MainTranslator]: Completed translation [2021-07-05 13:06:46,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 01:06:46 WrapperNode [2021-07-05 13:06:46,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 13:06:46,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 13:06:46,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 13:06:46,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 13:06:46,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 01:06:46" (1/1) ... [2021-07-05 13:06:46,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 01:06:46" (1/1) ... [2021-07-05 13:06:46,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 13:06:46,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 13:06:46,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 13:06:46,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 13:06:46,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 01:06:46" (1/1) ... [2021-07-05 13:06:46,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 01:06:46" (1/1) ... [2021-07-05 13:06:46,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 01:06:46" (1/1) ... [2021-07-05 13:06:46,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 01:06:46" (1/1) ... [2021-07-05 13:06:46,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 01:06:46" (1/1) ... [2021-07-05 13:06:46,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 01:06:46" (1/1) ... [2021-07-05 13:06:46,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 01:06:46" (1/1) ... [2021-07-05 13:06:46,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 13:06:46,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 13:06:46,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 13:06:46,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 13:06:46,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 01:06:46" (1/1) ... [2021-07-05 13:06:46,751 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 13:06:46,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 13:06:46,770 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) [2021-07-05 13:06:46,800 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 [2021-07-05 13:06:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 13:06:46,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 13:06:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 13:06:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 13:06:47,348 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 13:06:47,349 INFO L299 CfgBuilder]: Removed 108 assume(true) statements. [2021-07-05 13:06:47,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 01:06:47 BoogieIcfgContainer [2021-07-05 13:06:47,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 13:06:47,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 13:06:47,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 13:06:47,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 13:06:47,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 01:06:46" (1/3) ... [2021-07-05 13:06:47,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae4a5df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 01:06:47, skipping insertion in model container [2021-07-05 13:06:47,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 01:06:46" (2/3) ... [2021-07-05 13:06:47,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae4a5df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 01:06:47, skipping insertion in model container [2021-07-05 13:06:47,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 01:06:47" (3/3) ... [2021-07-05 13:06:47,357 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-006.c [2021-07-05 13:06:47,362 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 13:06:47,362 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-05 13:06:47,403 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 13:06:47,412 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 [2021-07-05 13:06:47,413 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 13:06:47,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 118 states have (on average 1.4915254237288136) internal successors, (176), 119 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 13:06:47,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-07-05 13:06:47,442 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 13:06:47,443 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 13:06:47,444 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 13:06:47,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 13:06:47,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1389823289, now seen corresponding path program 1 times [2021-07-05 13:06:47,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 13:06:47,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144452296] [2021-07-05 13:06:47,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 13:06:47,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 13:06:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 13:06:47,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:06:47,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 13:06:47,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:06:47,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 13:06:47,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 13:06:47,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 13:06:47,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144452296] [2021-07-05 13:06:47,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144452296] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 13:06:47,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 13:06:47,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-05 13:06:47,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659600552] [2021-07-05 13:06:47,686 INFO L425 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-05 13:06:47,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 13:06:47,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-05 13:06:47,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-05 13:06:47,699 INFO L87 Difference]: Start difference. First operand has 120 states, 118 states have (on average 1.4915254237288136) internal successors, (176), 119 states have internal predecessors, (176), 0 states have call successors, (0), 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 2 states, 2 states have (on average 58.0) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 13:06:47,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 13:06:47,726 INFO L93 Difference]: Finished difference Result 234 states and 346 transitions. [2021-07-05 13:06:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-05 13:06:47,727 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 58.0) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-07-05 13:06:47,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 13:06:47,735 INFO L225 Difference]: With dead ends: 234 [2021-07-05 13:06:47,735 INFO L226 Difference]: Without dead ends: 117 [2021-07-05 13:06:47,738 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-05 13:06:47,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-07-05 13:06:47,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-07-05 13:06:47,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.043103448275862) internal successors, (121), 116 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 13:06:47,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 121 transitions. [2021-07-05 13:06:47,769 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 121 transitions. Word has length 116 [2021-07-05 13:06:47,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 13:06:47,769 INFO L442 AbstractCegarLoop]: Abstraction has 117 states and 121 transitions. [2021-07-05 13:06:47,769 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 58.0) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 13:06:47,770 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 121 transitions. [2021-07-05 13:06:47,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-07-05 13:06:47,771 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 13:06:47,771 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 13:06:47,772 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 13:06:47,772 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 13:06:47,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 13:06:47,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1985819869, now seen corresponding path program 1 times [2021-07-05 13:06:47,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 13:06:47,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142861081] [2021-07-05 13:06:47,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 13:06:47,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 13:06:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 13:06:48,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:06:48,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 13:06:48,520 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-07-05 13:06:48,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 13:06:48,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:06:48,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 13:06:48,564 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-07-05 13:06:48,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 13:06:48,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:06:48,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 13:06:48,609 INFO L142 QuantifierPusher]: treesize reduction 11, result has 64.5 percent of original size [2021-07-05 13:06:48,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-05 13:06:48,646 INFO L142 QuantifierPusher]: treesize reduction 11, result has 50.0 percent of original size [2021-07-05 13:06:48,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 13:06:48,674 INFO L142 QuantifierPusher]: treesize reduction 17, result has 62.2 percent of original size [2021-07-05 13:06:48,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-05 13:06:48,726 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-07-05 13:06:48,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-05 13:06:48,757 INFO L142 QuantifierPusher]: treesize reduction 17, result has 76.4 percent of original size [2021-07-05 13:06:48,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-07-05 13:06:48,861 INFO L142 QuantifierPusher]: treesize reduction 17, result has 73.0 percent of original size [2021-07-05 13:06:48,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-05 13:06:48,939 INFO L142 QuantifierPusher]: treesize reduction 24, result has 80.0 percent of original size [2021-07-05 13:06:48,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-07-05 13:06:49,047 INFO L142 QuantifierPusher]: treesize reduction 24, result has 78.4 percent of original size [2021-07-05 13:06:49,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-07-05 13:06:49,167 INFO L142 QuantifierPusher]: treesize reduction 31, result has 80.7 percent of original size [2021-07-05 13:06:49,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-07-05 13:06:49,399 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-07-05 13:06:49,409 INFO L142 QuantifierPusher]: treesize reduction 31, result has 79.6 percent of original size [2021-07-05 13:06:49,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-07-05 13:06:49,610 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-07-05 13:06:49,630 INFO L142 QuantifierPusher]: treesize reduction 26, result has 83.9 percent of original size [2021-07-05 13:06:49,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-07-05 13:06:49,821 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-07-05 13:06:49,830 INFO L142 QuantifierPusher]: treesize reduction 26, result has 83.1 percent of original size [2021-07-05 13:06:49,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-07-05 13:06:50,010 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-07-05 13:06:50,019 INFO L142 QuantifierPusher]: treesize reduction 21, result has 86.9 percent of original size [2021-07-05 13:06:50,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-07-05 13:06:50,214 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2021-07-05 13:06:50,225 INFO L142 QuantifierPusher]: treesize reduction 21, result has 86.3 percent of original size [2021-07-05 13:06:50,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-07-05 13:06:50,412 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-07-05 13:06:50,426 INFO L142 QuantifierPusher]: treesize reduction 16, result has 90.2 percent of original size [2021-07-05 13:06:50,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-07-05 13:06:50,616 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-07-05 13:06:50,630 INFO L142 QuantifierPusher]: treesize reduction 16, result has 89.7 percent of original size [2021-07-05 13:06:50,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-07-05 13:06:50,824 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-07-05 13:06:50,845 INFO L142 QuantifierPusher]: treesize reduction 10, result has 93.9 percent of original size [2021-07-05 13:06:50,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-07-05 13:06:51,034 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-07-05 13:06:51,053 INFO L142 QuantifierPusher]: treesize reduction 10, result has 93.7 percent of original size [2021-07-05 13:06:51,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-07-05 13:06:51,262 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-07-05 13:06:51,281 INFO L142 QuantifierPusher]: treesize reduction 10, result has 93.8 percent of original size [2021-07-05 13:06:51,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-07-05 13:06:51,484 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2021-07-05 13:06:51,507 INFO L142 QuantifierPusher]: treesize reduction 10, result has 93.5 percent of original size [2021-07-05 13:06:51,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-07-05 13:06:51,730 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-07-05 13:06:51,737 INFO L142 QuantifierPusher]: treesize reduction 10, result has 93.9 percent of original size [2021-07-05 13:06:51,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-07-05 13:06:51,934 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2021-07-05 13:06:51,941 INFO L142 QuantifierPusher]: treesize reduction 10, result has 93.8 percent of original size [2021-07-05 13:06:51,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-07-05 13:06:52,180 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-07-05 13:06:52,199 INFO L142 QuantifierPusher]: treesize reduction 10, result has 91.5 percent of original size [2021-07-05 13:06:52,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-07-05 13:06:52,301 INFO L142 QuantifierPusher]: treesize reduction 10, result has 91.3 percent of original size [2021-07-05 13:06:52,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-07-05 13:06:52,383 INFO L142 QuantifierPusher]: treesize reduction 10, result has 91.9 percent of original size [2021-07-05 13:06:52,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-07-05 13:06:52,468 INFO L142 QuantifierPusher]: treesize reduction 10, result has 91.9 percent of original size [2021-07-05 13:06:52,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-07-05 13:06:52,558 INFO L142 QuantifierPusher]: treesize reduction 9, result has 87.8 percent of original size [2021-07-05 13:06:52,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-07-05 13:06:52,640 INFO L142 QuantifierPusher]: treesize reduction 9, result has 87.3 percent of original size [2021-07-05 13:06:52,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-07-05 13:06:52,726 INFO L142 QuantifierPusher]: treesize reduction 10, result has 87.0 percent of original size [2021-07-05 13:06:52,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-07-05 13:06:52,812 INFO L142 QuantifierPusher]: treesize reduction 10, result has 87.0 percent of original size [2021-07-05 13:06:52,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-07-05 13:06:52,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:06:52,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 13:06:52,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:06:52,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-05 13:06:53,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:06:53,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 13:06:53,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:06:53,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 13:06:53,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:06:53,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 13:06:53,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:06:53,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 13:06:53,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 13:06:53,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 13:06:53,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142861081] [2021-07-05 13:06:53,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142861081] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 13:06:53,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 13:06:53,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2021-07-05 13:06:53,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203691358] [2021-07-05 13:06:53,183 INFO L425 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-07-05 13:06:53,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 13:06:53,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-07-05 13:06:53,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1473, Unknown=0, NotChecked=0, Total=1640 [2021-07-05 13:06:53,185 INFO L87 Difference]: Start difference. First operand 117 states and 121 transitions. Second operand has 41 states, 41 states have (on average 2.8292682926829267) internal successors, (116), 41 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 13:06:54,226 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-07-05 13:06:54,415 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2021-07-05 13:06:54,944 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-07-05 13:06:55,104 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 52 [2021-07-05 13:06:55,295 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-07-05 13:06:55,474 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2021-07-05 13:06:55,701 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-05 13:06:55,940 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-07-05 13:06:56,272 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2021-07-05 13:06:56,501 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-07-05 13:06:56,899 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2021-07-05 13:06:57,172 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2021-07-05 13:06:57,424 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2021-07-05 13:06:57,859 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2021-07-05 13:06:58,404 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 94 [2021-07-05 13:06:58,857 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2021-07-05 13:06:59,192 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2021-07-05 13:06:59,493 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2021-07-05 13:06:59,792 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2021-07-05 13:07:00,129 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 94 [2021-07-05 13:07:00,463 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 91 [2021-07-05 13:07:00,812 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 98 [2021-07-05 13:07:01,221 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2021-07-05 13:07:01,567 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2021-07-05 13:07:01,917 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2021-07-05 13:07:02,273 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 100 [2021-07-05 13:07:02,557 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2021-07-05 13:07:02,924 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 101 [2021-07-05 13:07:03,244 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2021-07-05 13:07:03,648 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 81 [2021-07-05 13:07:04,017 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 82 [2021-07-05 13:07:04,354 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 85 [2021-07-05 13:07:04,699 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 93 [2021-07-05 13:07:05,039 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 84 [2021-07-05 13:07:05,366 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2021-07-05 13:07:05,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 13:07:05,387 INFO L93 Difference]: Finished difference Result 164 states and 170 transitions. [2021-07-05 13:07:05,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-05 13:07:05,387 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 2.8292682926829267) internal successors, (116), 41 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-07-05 13:07:05,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 13:07:05,389 INFO L225 Difference]: With dead ends: 164 [2021-07-05 13:07:05,389 INFO L226 Difference]: Without dead ends: 160 [2021-07-05 13:07:05,392 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 909 ImplicationChecksByTransitivity, 14903.9ms TimeCoverageRelationStatistics Valid=1927, Invalid=5045, Unknown=0, NotChecked=0, Total=6972 [2021-07-05 13:07:05,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-07-05 13:07:05,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 129. [2021-07-05 13:07:05,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.0546875) internal successors, (135), 128 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 13:07:05,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 135 transitions. [2021-07-05 13:07:05,401 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 135 transitions. Word has length 116 [2021-07-05 13:07:05,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 13:07:05,402 INFO L442 AbstractCegarLoop]: Abstraction has 129 states and 135 transitions. [2021-07-05 13:07:05,402 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 2.8292682926829267) internal successors, (116), 41 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 13:07:05,402 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 135 transitions. [2021-07-05 13:07:05,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-07-05 13:07:05,403 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 13:07:05,404 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 13:07:05,404 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-05 13:07:05,404 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 13:07:05,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 13:07:05,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1985879451, now seen corresponding path program 1 times [2021-07-05 13:07:05,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 13:07:05,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937175205] [2021-07-05 13:07:05,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 13:07:05,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 13:07:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 13:07:05,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:05,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 13:07:05,658 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-07-05 13:07:05,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-05 13:07:05,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:05,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 13:07:05,673 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-07-05 13:07:05,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-05 13:07:05,689 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-07-05 13:07:05,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 13:07:05,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:05,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-05 13:07:05,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:05,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-07-05 13:07:05,802 INFO L142 QuantifierPusher]: treesize reduction 5, result has 92.2 percent of original size [2021-07-05 13:07:05,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-07-05 13:07:05,871 INFO L142 QuantifierPusher]: treesize reduction 5, result has 91.1 percent of original size [2021-07-05 13:07:05,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-05 13:07:05,932 INFO L142 QuantifierPusher]: treesize reduction 15, result has 89.0 percent of original size [2021-07-05 13:07:05,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-07-05 13:07:06,078 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2021-07-05 13:07:06,087 INFO L142 QuantifierPusher]: treesize reduction 15, result has 89.7 percent of original size [2021-07-05 13:07:06,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-07-05 13:07:06,236 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-07-05 13:07:06,249 INFO L142 QuantifierPusher]: treesize reduction 15, result has 89.1 percent of original size [2021-07-05 13:07:06,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-07-05 13:07:06,395 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-07-05 13:07:06,399 INFO L142 QuantifierPusher]: treesize reduction 10, result has 93.1 percent of original size [2021-07-05 13:07:06,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-07-05 13:07:06,551 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-07-05 13:07:06,558 INFO L142 QuantifierPusher]: treesize reduction 10, result has 92.7 percent of original size [2021-07-05 13:07:06,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-07-05 13:07:06,705 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-07-05 13:07:06,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:06,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-07-05 13:07:06,894 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-07-05 13:07:06,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:06,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-07-05 13:07:07,073 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-07-05 13:07:07,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:07,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-07-05 13:07:07,249 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-07-05 13:07:07,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:07,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-07-05 13:07:07,412 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2021-07-05 13:07:07,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:07,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-07-05 13:07:07,588 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-07-05 13:07:07,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:07,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-07-05 13:07:07,746 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-07-05 13:07:07,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:07,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-07-05 13:07:07,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:07,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-07-05 13:07:07,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:07,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-07-05 13:07:08,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:08,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-07-05 13:07:08,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:08,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-05 13:07:08,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:08,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-05 13:07:08,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:08,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 13:07:08,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:08,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-05 13:07:08,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:08,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 13:07:08,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 13:07:08,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 13:07:08,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 13:07:08,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 13:07:08,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937175205] [2021-07-05 13:07:08,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937175205] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 13:07:08,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 13:07:08,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-07-05 13:07:08,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735093256] [2021-07-05 13:07:08,295 INFO L425 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-05 13:07:08,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 13:07:08,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-05 13:07:08,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=773, Unknown=0, NotChecked=0, Total=870 [2021-07-05 13:07:08,296 INFO L87 Difference]: Start difference. First operand 129 states and 135 transitions. Second operand has 30 states, 30 states have (on average 3.8666666666666667) internal successors, (116), 30 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 13:07:09,473 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2021-07-05 13:07:09,855 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 40 [2021-07-05 13:07:10,038 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2021-07-05 13:07:10,354 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 45 [2021-07-05 13:07:10,516 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2021-07-05 13:07:10,720 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2021-07-05 13:07:10,962 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2021-07-05 13:07:11,388 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2021-07-05 13:07:11,647 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2021-07-05 13:07:11,912 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2021-07-05 13:07:12,201 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2021-07-05 13:07:12,446 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2021-07-05 13:07:12,706 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-07-05 13:07:12,956 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-07-05 13:07:13,326 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-07-05 13:07:13,556 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2021-07-05 13:07:13,827 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-07-05 13:07:14,084 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-07-05 13:07:14,340 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2021-07-05 13:07:14,569 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-07-05 13:07:14,829 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-07-05 13:07:15,062 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2021-07-05 13:07:15,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 13:07:15,112 INFO L93 Difference]: Finished difference Result 160 states and 166 transitions. [2021-07-05 13:07:15,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-05 13:07:15,113 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.8666666666666667) internal successors, (116), 30 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-07-05 13:07:15,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 13:07:15,115 INFO L225 Difference]: With dead ends: 160 [2021-07-05 13:07:15,115 INFO L226 Difference]: Without dead ends: 152 [2021-07-05 13:07:15,116 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 8351.0ms TimeCoverageRelationStatistics Valid=1013, Invalid=2647, Unknown=0, NotChecked=0, Total=3660 [2021-07-05 13:07:15,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-07-05 13:07:15,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 125. [2021-07-05 13:07:15,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.0483870967741935) internal successors, (130), 124 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 13:07:15,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 130 transitions. [2021-07-05 13:07:15,123 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 130 transitions. Word has length 116 [2021-07-05 13:07:15,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 13:07:15,124 INFO L442 AbstractCegarLoop]: Abstraction has 125 states and 130 transitions. [2021-07-05 13:07:15,124 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 3.8666666666666667) internal successors, (116), 30 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 13:07:15,124 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 130 transitions. [2021-07-05 13:07:15,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-07-05 13:07:15,126 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 13:07:15,126 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 13:07:15,126 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-05 13:07:15,126 INFO L374 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 13:07:15,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 13:07:15,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1176473243, now seen corresponding path program 1 times [2021-07-05 13:07:15,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 13:07:15,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474788843] [2021-07-05 13:07:15,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 13:07:15,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 13:07:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 13:07:15,219 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 13:07:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 13:07:15,411 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 13:07:15,450 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-05 13:07:15,450 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-05 13:07:15,453 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-05 13:07:15,453 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 13:07:15,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.07 01:07:15 BoogieIcfgContainer [2021-07-05 13:07:15,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-05 13:07:15,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-05 13:07:15,503 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-05 13:07:15,503 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-05 13:07:15,504 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 01:06:47" (3/4) ... [2021-07-05 13:07:15,505 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-05 13:07:15,549 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-05 13:07:15,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-05 13:07:15,550 INFO L168 Benchmark]: Toolchain (without parser) took 29253.27 ms. Allocated memory was 56.6 MB in the beginning and 132.1 MB in the end (delta: 75.5 MB). Free memory was 34.0 MB in the beginning and 42.4 MB in the end (delta: -8.4 MB). Peak memory consumption was 65.5 MB. Max. memory is 16.1 GB. [2021-07-05 13:07:15,551 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 56.6 MB. Free memory was 38.4 MB in the beginning and 38.4 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 13:07:15,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.61 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.8 MB in the beginning and 55.0 MB in the end (delta: -21.1 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2021-07-05 13:07:15,551 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.78 ms. Allocated memory is still 71.3 MB. Free memory was 54.8 MB in the beginning and 52.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 13:07:15,552 INFO L168 Benchmark]: Boogie Preprocessor took 46.81 ms. Allocated memory is still 71.3 MB. Free memory was 52.1 MB in the beginning and 50.2 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 13:07:15,552 INFO L168 Benchmark]: RCFGBuilder took 605.81 ms. Allocated memory is still 71.3 MB. Free memory was 50.2 MB in the beginning and 50.3 MB in the end (delta: -106.1 kB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2021-07-05 13:07:15,552 INFO L168 Benchmark]: TraceAbstraction took 28151.02 ms. Allocated memory was 71.3 MB in the beginning and 132.1 MB in the end (delta: 60.8 MB). Free memory was 49.7 MB in the beginning and 49.8 MB in the end (delta: -48.3 kB). Peak memory consumption was 81.3 MB. Max. memory is 16.1 GB. [2021-07-05 13:07:15,552 INFO L168 Benchmark]: Witness Printer took 46.71 ms. Allocated memory is still 132.1 MB. Free memory was 49.8 MB in the beginning and 42.4 MB in the end (delta: 7.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-07-05 13:07:15,554 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 56.6 MB. Free memory was 38.4 MB in the beginning and 38.4 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 324.61 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.8 MB in the beginning and 55.0 MB in the end (delta: -21.1 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.78 ms. Allocated memory is still 71.3 MB. Free memory was 54.8 MB in the beginning and 52.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.81 ms. Allocated memory is still 71.3 MB. Free memory was 52.1 MB in the beginning and 50.2 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 605.81 ms. Allocated memory is still 71.3 MB. Free memory was 50.2 MB in the beginning and 50.3 MB in the end (delta: -106.1 kB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28151.02 ms. Allocated memory was 71.3 MB in the beginning and 132.1 MB in the end (delta: 60.8 MB). Free memory was 49.7 MB in the beginning and 49.8 MB in the end (delta: -48.3 kB). Peak memory consumption was 81.3 MB. Max. memory is 16.1 GB. * Witness Printer took 46.71 ms. Allocated memory is still 132.1 MB. Free memory was 49.8 MB in the beginning and 42.4 MB in the end (delta: 7.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 113]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L24] int cond0; [L25] int dummy = 0; [L26] int N; [L27] int var0; [L28] var0 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L31] int var1; [L32] var1 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L35] int var2; [L36] var2 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L39] int var3; [L40] var3 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L43] int var4; [L44] var4 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L47] int var5; [L48] var5 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L51] int var6; [L52] var6 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L55] int var7; [L56] var7 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L59] int var8; [L60] var8 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L63] int var9; [L64] var9 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L67] int var10; [L68] var10 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L71] int myvar0 = 1; [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L97] int var_for_abs; [L98] var_for_abs = var0 - var1 [L99] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L99] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L101] var_for_abs = var1 - var2 [L102] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L102] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L104] var_for_abs = var2 - var3 [L105] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L105] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L107] var_for_abs = var3 - var4 [L108] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L108] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L110] var_for_abs = var4 - var5 [L111] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L111] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L113] reach_error() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 120 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 28054.1ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 18.0ms, AutomataDifference: 19077.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 256 SDtfs, 3913 SDslu, 871 SDs, 0 SdLazy, 2025 SolverSat, 466 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1923.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1372 ImplicationChecksByTransitivity, 23254.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=2, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 35.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 58 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.9ms SsaConstructionTime, 532.0ms SatisfiabilityAnalysisTime, 7974.5ms InterpolantComputationTime, 464 NumberOfCodeBlocks, 464 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 345 ConstructedInterpolants, 0 QuantifiedInterpolants, 15621 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 RESULT: Ultimate proved your program to be incorrect! [2021-07-05 13:07:15,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...