./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/jain_2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/bitvector/jain_2-1.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 cd241d1c0c1128619ca1600eb04662c80fc62fc2 ............................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 02:59:54,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 02:59:54,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 02:59:54,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 02:59:54,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 02:59:54,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 02:59:54,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 02:59:54,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 02:59:54,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 02:59:54,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 02:59:54,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 02:59:54,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 02:59:54,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 02:59:54,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 02:59:54,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 02:59:54,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 02:59:54,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 02:59:54,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 02:59:54,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 02:59:54,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 02:59:54,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 02:59:54,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 02:59:54,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 02:59:54,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 02:59:54,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 02:59:54,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 02:59:54,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 02:59:54,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 02:59:54,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 02:59:54,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 02:59:54,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 02:59:54,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 02:59:54,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 02:59:54,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 02:59:54,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 02:59:54,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 02:59:54,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 02:59:54,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 02:59:54,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 02:59:54,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 02:59:54,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 02:59:54,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 02:59:54,631 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 02:59:54,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 02:59:54,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 02:59:54,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 02:59:54,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 02:59:54,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 02:59:54,634 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 02:59:54,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 02:59:54,635 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 02:59:54,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 02:59:54,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 02:59:54,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 02:59:54,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 02:59:54,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 02:59:54,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 02:59:54,637 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 02:59:54,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 02:59:54,637 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 02:59:54,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 02:59:54,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 02:59:54,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 02:59:54,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 02:59:54,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 02:59:54,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 02:59:54,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 02:59:54,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 02:59:54,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 02:59:54,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 02:59:54,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 02:59:54,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 02:59:54,640 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd241d1c0c1128619ca1600eb04662c80fc62fc2 [2021-08-29 02:59:54,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 02:59:54,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 02:59:54,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 02:59:54,940 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 02:59:54,941 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 02:59:54,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/jain_2-1.c [2021-08-29 02:59:54,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34680b3c7/4b0203a2061c4abbaf0113f082652108/FLAG153c97acb [2021-08-29 02:59:55,448 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 02:59:55,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_2-1.c [2021-08-29 02:59:55,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34680b3c7/4b0203a2061c4abbaf0113f082652108/FLAG153c97acb [2021-08-29 02:59:55,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34680b3c7/4b0203a2061c4abbaf0113f082652108 [2021-08-29 02:59:55,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 02:59:55,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 02:59:55,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 02:59:55,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 02:59:55,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 02:59:55,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:59:55" (1/1) ... [2021-08-29 02:59:55,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce28250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:59:55, skipping insertion in model container [2021-08-29 02:59:55,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:59:55" (1/1) ... [2021-08-29 02:59:55,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 02:59:55,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 02:59:55,998 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_2-1.c[370,383] [2021-08-29 02:59:56,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 02:59:56,015 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 02:59:56,025 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_2-1.c[370,383] [2021-08-29 02:59:56,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 02:59:56,038 INFO L208 MainTranslator]: Completed translation [2021-08-29 02:59:56,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:59:56 WrapperNode [2021-08-29 02:59:56,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 02:59:56,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 02:59:56,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 02:59:56,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 02:59:56,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:59:56" (1/1) ... [2021-08-29 02:59:56,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:59:56" (1/1) ... [2021-08-29 02:59:56,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 02:59:56,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 02:59:56,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 02:59:56,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 02:59:56,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:59:56" (1/1) ... [2021-08-29 02:59:56,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:59:56" (1/1) ... [2021-08-29 02:59:56,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:59:56" (1/1) ... [2021-08-29 02:59:56,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:59:56" (1/1) ... [2021-08-29 02:59:56,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:59:56" (1/1) ... [2021-08-29 02:59:56,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:59:56" (1/1) ... [2021-08-29 02:59:56,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:59:56" (1/1) ... [2021-08-29 02:59:56,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 02:59:56,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 02:59:56,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 02:59:56,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 02:59:56,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:59:56" (1/1) ... [2021-08-29 02:59:56,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 02:59:56,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 02:59:56,150 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) [2021-08-29 02:59:56,174 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 [2021-08-29 02:59:56,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 02:59:56,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 02:59:56,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 02:59:56,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 02:59:56,333 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 02:59:56,334 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-29 02:59:56,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:59:56 BoogieIcfgContainer [2021-08-29 02:59:56,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 02:59:56,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 02:59:56,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 02:59:56,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 02:59:56,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:59:55" (1/3) ... [2021-08-29 02:59:56,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246d1724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:59:56, skipping insertion in model container [2021-08-29 02:59:56,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:59:56" (2/3) ... [2021-08-29 02:59:56,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246d1724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:59:56, skipping insertion in model container [2021-08-29 02:59:56,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:59:56" (3/3) ... [2021-08-29 02:59:56,343 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_2-1.c [2021-08-29 02:59:56,348 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 02:59:56,348 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 02:59:56,397 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 02:59:56,405 INFO L339 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, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 02:59:56,405 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 02:59:56,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 02:59:56,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-29 02:59:56,427 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 02:59:56,428 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-29 02:59:56,429 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 02:59:56,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 02:59:56,443 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2021-08-29 02:59:56,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 02:59:56,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488911928] [2021-08-29 02:59:56,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:59:56,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 02:59:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 02:59:56,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 02:59:56,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 02:59:56,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488911928] [2021-08-29 02:59:56,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488911928] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 02:59:56,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 02:59:56,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 02:59:56,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677996709] [2021-08-29 02:59:56,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 02:59:56,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 02:59:56,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 02:59:56,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 02:59:56,786 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 02:59:56,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 02:59:56,844 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2021-08-29 02:59:56,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 02:59:56,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-08-29 02:59:56,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 02:59:56,853 INFO L225 Difference]: With dead ends: 16 [2021-08-29 02:59:56,853 INFO L226 Difference]: Without dead ends: 8 [2021-08-29 02:59:56,855 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.77ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 02:59:56,859 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.53ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.22ms IncrementalHoareTripleChecker+Time [2021-08-29 02:59:56,860 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 19 Unknown, 0 Unchecked, 0.53ms Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 45.22ms Time] [2021-08-29 02:59:56,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-08-29 02:59:56,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-08-29 02:59:56,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 02:59:56,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-08-29 02:59:56,884 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2021-08-29 02:59:56,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 02:59:56,885 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-08-29 02:59:56,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 02:59:56,885 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-08-29 02:59:56,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 02:59:56,885 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 02:59:56,885 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-08-29 02:59:56,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 02:59:56,886 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 02:59:56,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 02:59:56,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1810804418, now seen corresponding path program 1 times [2021-08-29 02:59:56,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 02:59:56,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698384015] [2021-08-29 02:59:56,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:59:56,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 02:59:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 02:59:56,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 02:59:56,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 02:59:56,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698384015] [2021-08-29 02:59:56,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698384015] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 02:59:56,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190137500] [2021-08-29 02:59:56,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:59:56,967 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 02:59:56,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 02:59:56,977 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) [2021-08-29 02:59:56,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-29 02:59:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 02:59:57,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-29 02:59:57,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 02:59:57,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 02:59:57,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:00:08,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:00:08,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190137500] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 03:00:08,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 03:00:08,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-08-29 03:00:08,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723696259] [2021-08-29 03:00:08,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-29 03:00:08,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:00:08,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-29 03:00:08,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=42, Unknown=5, NotChecked=0, Total=72 [2021-08-29 03:00:08,124 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:00:08,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:00:08,150 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2021-08-29 03:00:08,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 03:00:08,150 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-08-29 03:00:08,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:00:08,151 INFO L225 Difference]: With dead ends: 8 [2021-08-29 03:00:08,151 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 03:00:08,152 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 10834.82ms TimeCoverageRelationStatistics Valid=33, Invalid=52, Unknown=5, NotChecked=0, Total=90 [2021-08-29 03:00:08,153 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.27ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 12.90ms IncrementalHoareTripleChecker+Time [2021-08-29 03:00:08,153 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 16 Unknown, 0 Unchecked, 0.27ms Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 3 Unchecked, 12.90ms Time] [2021-08-29 03:00:08,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 03:00:08,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 03:00:08,154 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) [2021-08-29 03:00:08,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 03:00:08,155 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-08-29 03:00:08,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:00:08,155 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 03:00:08,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:00:08,156 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 03:00:08,156 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 03:00:08,158 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 03:00:08,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-08-29 03:00:08,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 03:00:08,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 03:00:08,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:00:08,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:00:08,418 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 03:00:08,418 INFO L854 garLoopResultBuilder]: At program point L27(lines 12 28) the Hoare annotation is: false [2021-08-29 03:00:08,418 INFO L858 garLoopResultBuilder]: For program point L19-2(lines 19 26) no Hoare annotation was computed. [2021-08-29 03:00:08,418 INFO L858 garLoopResultBuilder]: For program point L7(lines 7 9) no Hoare annotation was computed. [2021-08-29 03:00:08,419 INFO L854 garLoopResultBuilder]: At program point L7-2(lines 6 26) the Hoare annotation is: (or (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (mod (+ ULTIMATE.start_main_~x~0 1) (- 2)) 0) (= (mod (+ ULTIMATE.start_main_~y~0 1) (- 2)) 0)) (and (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~x~0 1))) [2021-08-29 03:00:08,419 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 03:00:08,419 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 03:00:08,419 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 03:00:08,419 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2021-08-29 03:00:08,419 INFO L858 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-08-29 03:00:08,423 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 03:00:08,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:00:08 BoogieIcfgContainer [2021-08-29 03:00:08,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 03:00:08,452 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 03:00:08,452 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 03:00:08,452 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 03:00:08,453 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:59:56" (3/4) ... [2021-08-29 03:00:08,455 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 03:00:08,463 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-29 03:00:08,464 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 03:00:08,464 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 03:00:08,464 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 03:00:08,499 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 03:00:08,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 03:00:08,500 INFO L158 Benchmark]: Toolchain (without parser) took 12637.14ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 29.0MB in the beginning and 28.9MB in the end (delta: 75.3kB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-08-29 03:00:08,500 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory is still 33.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:00:08,500 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.02ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 28.9MB in the beginning and 41.5MB in the end (delta: -12.6MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2021-08-29 03:00:08,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.97ms. Allocated memory is still 62.9MB. Free memory was 41.3MB in the beginning and 46.0MB in the end (delta: -4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 03:00:08,501 INFO L158 Benchmark]: Boogie Preprocessor took 15.32ms. Allocated memory is still 62.9MB. Free memory was 46.0MB in the beginning and 45.1MB in the end (delta: 874.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:00:08,502 INFO L158 Benchmark]: RCFGBuilder took 220.36ms. Allocated memory is still 62.9MB. Free memory was 45.1MB in the beginning and 36.9MB in the end (delta: 8.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-29 03:00:08,502 INFO L158 Benchmark]: TraceAbstraction took 12114.08ms. Allocated memory is still 62.9MB. Free memory was 36.5MB in the beginning and 31.0MB in the end (delta: 5.5MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2021-08-29 03:00:08,502 INFO L158 Benchmark]: Witness Printer took 47.39ms. Allocated memory is still 62.9MB. Free memory was 31.0MB in the beginning and 28.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 03:00:08,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory is still 33.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 175.02ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 28.9MB in the beginning and 41.5MB in the end (delta: -12.6MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.97ms. Allocated memory is still 62.9MB. Free memory was 41.3MB in the beginning and 46.0MB in the end (delta: -4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.32ms. Allocated memory is still 62.9MB. Free memory was 46.0MB in the beginning and 45.1MB in the end (delta: 874.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 220.36ms. Allocated memory is still 62.9MB. Free memory was 45.1MB in the beginning and 36.9MB in the end (delta: 8.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 12114.08ms. Allocated memory is still 62.9MB. Free memory was 36.5MB in the beginning and 31.0MB in the end (delta: 5.5MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Witness Printer took 47.39ms. Allocated memory is still 62.9MB. Free memory was 31.0MB in the beginning and 28.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12029.06ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 8.53ms, AutomataDifference: 148.89ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 39.59ms, InitialAbstractionConstructionTime: 13.87ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 58.12ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 42.59ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 3 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 29 mSolverCounterSat, 0.80ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 10846.59ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 12.76ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 27 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 7.25ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 25.95ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 11.11ms SsaConstructionTime, 108.32ms SatisfiabilityAnalysisTime, 11275.65ms InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 3 QuantifiedInterpolants, 150 SizeOfPredicates, 7 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ((1 <= cond && (x + 1) % -2 == 0) && (y + 1) % -2 == 0) || (y == 1 && x == 1) RESULT: Ultimate proved your program to be correct! [2021-08-29 03:00:08,524 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...