./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/jain_7-2.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/bitvector/jain_7-2.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 876f7945e4fb4974c1e8dba27730dcbf7b8b3ec8 .............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-04 17:55:24,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 17:55:24,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 17:55:24,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 17:55:24,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 17:55:24,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 17:55:24,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 17:55:24,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 17:55:24,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 17:55:24,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 17:55:24,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 17:55:24,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 17:55:24,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 17:55:24,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 17:55:24,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 17:55:24,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 17:55:24,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 17:55:24,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 17:55:24,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 17:55:24,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 17:55:24,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 17:55:24,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 17:55:24,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 17:55:24,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 17:55:24,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 17:55:24,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 17:55:24,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 17:55:24,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 17:55:24,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 17:55:24,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 17:55:24,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 17:55:24,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 17:55:24,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 17:55:24,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 17:55:24,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 17:55:24,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 17:55:24,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 17:55:24,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 17:55:24,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 17:55:24,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 17:55:24,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 17:55:24,594 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-04 17:55:24,625 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 17:55:24,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 17:55:24,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 17:55:24,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 17:55:24,628 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 17:55:24,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 17:55:24,628 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 17:55:24,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-04 17:55:24,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 17:55:24,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 17:55:24,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 17:55:24,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 17:55:24,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 17:55:24,630 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 17:55:24,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 17:55:24,630 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 17:55:24,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 17:55:24,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 17:55:24,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 17:55:24,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 17:55:24,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 17:55:24,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 17:55:24,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 17:55:24,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 17:55:24,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-04 17:55:24,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-04 17:55:24,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 17:55:24,633 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 17:55:24,633 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 876f7945e4fb4974c1e8dba27730dcbf7b8b3ec8 [2021-07-04 17:55:24,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 17:55:24,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 17:55:24,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 17:55:24,951 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 17:55:24,952 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 17:55:24,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/jain_7-2.c [2021-07-04 17:55:25,021 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39d945a67/264dc9ae0af848f196238685b2b9ab3d/FLAG52e6afa6c [2021-07-04 17:55:25,450 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 17:55:25,452 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_7-2.c [2021-07-04 17:55:25,458 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39d945a67/264dc9ae0af848f196238685b2b9ab3d/FLAG52e6afa6c [2021-07-04 17:55:25,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39d945a67/264dc9ae0af848f196238685b2b9ab3d [2021-07-04 17:55:25,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 17:55:25,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 17:55:25,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 17:55:25,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 17:55:25,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 17:55:25,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 05:55:25" (1/1) ... [2021-07-04 17:55:25,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bff28c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:55:25, skipping insertion in model container [2021-07-04 17:55:25,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 05:55:25" (1/1) ... [2021-07-04 17:55:25,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 17:55:25,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 17:55:25,600 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/bitvector/jain_7-2.c[370,383] [2021-07-04 17:55:25,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 17:55:25,615 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 17:55:25,624 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/bitvector/jain_7-2.c[370,383] [2021-07-04 17:55:25,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 17:55:25,637 INFO L208 MainTranslator]: Completed translation [2021-07-04 17:55:25,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:55:25 WrapperNode [2021-07-04 17:55:25,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 17:55:25,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 17:55:25,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 17:55:25,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 17:55:25,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:55:25" (1/1) ... [2021-07-04 17:55:25,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:55:25" (1/1) ... [2021-07-04 17:55:25,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 17:55:25,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 17:55:25,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 17:55:25,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 17:55:25,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:55:25" (1/1) ... [2021-07-04 17:55:25,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:55:25" (1/1) ... [2021-07-04 17:55:25,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:55:25" (1/1) ... [2021-07-04 17:55:25,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:55:25" (1/1) ... [2021-07-04 17:55:25,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:55:25" (1/1) ... [2021-07-04 17:55:25,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:55:25" (1/1) ... [2021-07-04 17:55:25,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:55:25" (1/1) ... [2021-07-04 17:55:25,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 17:55:25,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 17:55:25,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 17:55:25,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 17:55:25,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:55:25" (1/1) ... [2021-07-04 17:55:25,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 17:55:25,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 17:55:25,758 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) [2021-07-04 17:55:25,789 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 [2021-07-04 17:55:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 17:55:25,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 17:55:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-04 17:55:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 17:55:25,956 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 17:55:25,956 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-04 17:55:25,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 05:55:25 BoogieIcfgContainer [2021-07-04 17:55:25,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 17:55:25,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 17:55:25,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 17:55:25,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 17:55:25,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 05:55:25" (1/3) ... [2021-07-04 17:55:25,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37134b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 05:55:25, skipping insertion in model container [2021-07-04 17:55:25,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:55:25" (2/3) ... [2021-07-04 17:55:25,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37134b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 05:55:25, skipping insertion in model container [2021-07-04 17:55:25,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 05:55:25" (3/3) ... [2021-07-04 17:55:25,964 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_7-2.c [2021-07-04 17:55:25,969 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 17:55:25,969 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-04 17:55:26,002 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 17:55:26,007 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 [2021-07-04 17:55:26,013 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 17:55:26,026 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) [2021-07-04 17:55:26,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-07-04 17:55:26,030 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 17:55:26,030 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-07-04 17:55:26,031 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 17:55:26,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 17:55:26,035 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2021-07-04 17:55:26,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 17:55:26,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322243779] [2021-07-04 17:55:26,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 17:55:26,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 17:55:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 17:55:26,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:55:26,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-04 17:55:26,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-04 17:55:26,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:55:26,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 17:55:26,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-04 17:55:26,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322243779] [2021-07-04 17:55:26,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322243779] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-04 17:55:26,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-04 17:55:26,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-04 17:55:26,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356453382] [2021-07-04 17:55:26,314 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-04 17:55:26,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-04 17:55:26,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-04 17:55:26,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-04 17:55:26,332 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) [2021-07-04 17:55:26,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 17:55:26,368 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2021-07-04 17:55:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-04 17:55:26,369 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 [2021-07-04 17:55:26,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 17:55:26,375 INFO L225 Difference]: With dead ends: 16 [2021-07-04 17:55:26,375 INFO L226 Difference]: Without dead ends: 8 [2021-07-04 17:55:26,378 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.2ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-04 17:55:26,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-07-04 17:55:26,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-07-04 17:55:26,405 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) [2021-07-04 17:55:26,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-07-04 17:55:26,406 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2021-07-04 17:55:26,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 17:55:26,406 INFO L442 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-07-04 17:55:26,407 INFO L443 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) [2021-07-04 17:55:26,407 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-07-04 17:55:26,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-07-04 17:55:26,408 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 17:55:26,408 INFO L525 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-07-04 17:55:26,409 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-04 17:55:26,409 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 17:55:26,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 17:55:26,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1810804418, now seen corresponding path program 1 times [2021-07-04 17:55:26,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 17:55:26,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993721890] [2021-07-04 17:55:26,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 17:55:26,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 17:55:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 17:55:26,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:55:26,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-04 17:55:26,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-04 17:55:26,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-04 17:55:26,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:55:26,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 17:55:26,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-04 17:55:26,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993721890] [2021-07-04 17:55:26,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993721890] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-04 17:55:26,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918860679] [2021-07-04 17:55:26,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 17:55:26,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-04 17:55:26,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 17:55:26,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-07-04 17:55:26,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-07-04 17:55:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 17:55:26,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-04 17:55:26,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-04 17:55:26,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:55:26,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:55:26,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:55:26,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:55:26,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-04 17:55:26,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-04 17:55:26,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-04 17:55:26,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-04 17:55:26,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-04 17:55:26,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-04 17:55:26,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-04 17:55:26,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:26,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-04 17:55:28,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:28,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-04 17:55:28,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:28,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-04 17:55:28,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:28,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-04 17:55:28,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:28,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-04 17:55:28,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:28,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-04 17:55:28,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:28,896 INFO L849 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-07-04 17:55:28,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 17:55:28,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:28,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-04 17:55:28,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-04 17:55:28,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:28,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 17:55:28,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:28,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 17:55:28,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 17:55:28,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:28,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 17:55:28,949 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-07-04 17:55:28,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:55:28,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:28,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:55:28,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:28,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:55:28,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:55:28,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:55:28,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 17:55:28,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918860679] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-04 17:55:28,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-04 17:55:28,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-07-04 17:55:28,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175482374] [2021-07-04 17:55:28,954 INFO L425 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-04 17:55:28,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-04 17:55:28,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-04 17:55:28,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=27, Unknown=1, NotChecked=0, Total=42 [2021-07-04 17:55:28,955 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:55:37,027 WARN L205 SmtUtils]: Spent 8.06 s on a formula simplification that was a NOOP. DAG size: 37 [2021-07-04 17:55:37,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 17:55:37,172 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2021-07-04 17:55:37,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-04 17:55:37,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-07-04 17:55:37,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 17:55:37,173 INFO L225 Difference]: With dead ends: 8 [2021-07-04 17:55:37,173 INFO L226 Difference]: Without dead ends: 0 [2021-07-04 17:55:37,174 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 10112.4ms TimeCoverageRelationStatistics Valid=20, Invalid=35, Unknown=1, NotChecked=0, Total=56 [2021-07-04 17:55:37,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-04 17:55:37,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-04 17:55:37,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:55:37,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-04 17:55:37,174 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-07-04 17:55:37,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 17:55:37,180 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-04 17:55:37,180 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:55:37,181 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-04 17:55:37,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-04 17:55:37,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-04 17:55:37,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-04 17:55:37,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-04 17:55:53,294 WARN L205 SmtUtils]: Spent 16.10 s on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-07-04 17:55:53,305 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-04 17:55:53,305 INFO L762 garLoopResultBuilder]: For program point L7(lines 7 9) no Hoare annotation was computed. [2021-07-04 17:55:53,306 INFO L758 garLoopResultBuilder]: At program point L7-2(lines 6 27) the Hoare annotation is: (or (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (mod (* ULTIMATE.start_main_~y~0 2097151) (- 2097152)) 0) (= (mod (* ULTIMATE.start_main_~z~0 4194303) (- 4194304)) 0) (<= (+ ULTIMATE.start_main_~z~0 (* 4 ULTIMATE.start_main_~x~0)) (+ (* 4194304 (div (+ ULTIMATE.start_main_~z~0 (* ULTIMATE.start_main_~x~0 4) (* ULTIMATE.start_main_~y~0 (- 2))) 4194304)) (* 2 ULTIMATE.start_main_~y~0))) (= (mod (* ULTIMATE.start_main_~x~0 1048575) (- 1048576)) 0)) (and (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_main_~y~0 0) (= ULTIMATE.start_main_~z~0 0))) [2021-07-04 17:55:53,306 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-04 17:55:53,306 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-04 17:55:53,306 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-04 17:55:53,306 INFO L758 garLoopResultBuilder]: At program point L28(lines 12 29) the Hoare annotation is: false [2021-07-04 17:55:53,306 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2021-07-04 17:55:53,307 INFO L762 garLoopResultBuilder]: For program point L20-2(lines 20 27) no Hoare annotation was computed. [2021-07-04 17:55:53,307 INFO L762 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-07-04 17:55:53,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-07-04 17:55:53,507 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-04 17:55:53,507 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 17:55:53,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 05:55:53 BoogieIcfgContainer [2021-07-04 17:55:53,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 17:55:53,534 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 17:55:53,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 17:55:53,535 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 17:55:53,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 05:55:25" (3/4) ... [2021-07-04 17:55:53,539 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-04 17:55:53,547 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-07-04 17:55:53,548 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-07-04 17:55:53,548 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-04 17:55:53,549 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-04 17:55:53,587 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-04 17:55:53,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 17:55:53,588 INFO L168 Benchmark]: Toolchain (without parser) took 28101.67 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 41.9 MB in the beginning and 40.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2021-07-04 17:55:53,588 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 46.1 MB. Free memory was 28.7 MB in the beginning and 28.7 MB in the end (delta: 32.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 17:55:53,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.95 ms. Allocated memory is still 56.6 MB. Free memory was 41.8 MB in the beginning and 32.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-04 17:55:53,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.32 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 40.9 MB in the end (delta: -8.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-04 17:55:53,589 INFO L168 Benchmark]: Boogie Preprocessor took 28.35 ms. Allocated memory is still 56.6 MB. Free memory was 40.9 MB in the beginning and 39.9 MB in the end (delta: 965.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 17:55:53,590 INFO L168 Benchmark]: RCFGBuilder took 230.94 ms. Allocated memory is still 56.6 MB. Free memory was 39.9 MB in the beginning and 28.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-04 17:55:53,592 INFO L168 Benchmark]: TraceAbstraction took 27574.57 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 28.4 MB in the beginning and 43.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 70.4 kB. Max. memory is 16.1 GB. [2021-07-04 17:55:53,592 INFO L168 Benchmark]: Witness Printer took 52.91 ms. Allocated memory is still 69.2 MB. Free memory was 43.1 MB in the beginning and 40.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 17:55:53,594 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 46.1 MB. Free memory was 28.7 MB in the beginning and 28.7 MB in the end (delta: 32.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 149.95 ms. Allocated memory is still 56.6 MB. Free memory was 41.8 MB in the beginning and 32.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.32 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 40.9 MB in the end (delta: -8.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.35 ms. Allocated memory is still 56.6 MB. Free memory was 40.9 MB in the beginning and 39.9 MB in the end (delta: 965.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 230.94 ms. Allocated memory is still 56.6 MB. Free memory was 39.9 MB in the beginning and 28.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27574.57 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 28.4 MB in the beginning and 43.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 70.4 kB. Max. memory is 16.1 GB. * Witness Printer took 52.91 ms. Allocated memory is still 69.2 MB. Free memory was 43.1 MB in the beginning and 40.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27510.4ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 7.0ms, AutomataDifference: 8278.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 16121.7ms, InitialAbstractionConstructionTime: 9.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7 SDtfs, 3 SDslu, 11 SDs, 0 SdLazy, 13 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 162.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 10149.6ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 13.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 59 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 7.8ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 16108.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 18.0ms SsaConstructionTime, 276.8ms SatisfiabilityAnalysisTime, 2413.2ms InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 4 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ((((1 <= cond && y * 2097151 % -2097152 == 0) && z * 4194303 % -4194304 == 0) && z + 4 * x <= 4194304 * ((z + x * 4 + y * -2) / 4194304) + 2 * y) && x * 1048575 % -1048576 == 0) || ((x == 0 && y == 0) && z == 0) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-07-04 17:55:53,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...