./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label02.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2fe32dd1d26a4cf82120db07241724c51fa6ea29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:58:43,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:58:43,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:58:43,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:58:43,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:58:43,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:58:43,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:58:43,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:58:43,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:58:43,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:58:43,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:58:43,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:58:43,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:58:43,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:58:43,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:58:43,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:58:43,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:58:43,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:58:43,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:58:43,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:58:43,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:58:43,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:58:43,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:58:43,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:58:43,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:58:43,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:58:43,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:58:43,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:58:43,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:58:43,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:58:43,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:58:43,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:58:43,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:58:43,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:58:43,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:58:43,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:58:43,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:58:43,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:58:43,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:58:43,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:58:43,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:58:43,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 14:58:43,936 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:58:43,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:58:43,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:58:43,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:58:43,937 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:58:43,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:58:43,938 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:58:43,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:58:43,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:58:43,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:58:43,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:58:43,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:58:43,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:58:43,938 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:58:43,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:58:43,939 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:58:43,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:58:43,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:58:43,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:58:43,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:58:43,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:58:43,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:58:43,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:58:43,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:58:43,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:58:43,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:58:43,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:58:43,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:58:43,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:58:43,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer 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(__VERIFIER_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 -> 2fe32dd1d26a4cf82120db07241724c51fa6ea29 [2019-12-07 14:58:44,042 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:58:44,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:58:44,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:58:44,053 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:58:44,053 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:58:44,053 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem10_label02.c [2019-12-07 14:58:44,090 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer/data/ee9acfd40/c38cd8150e8c4dc08f9af61715a6d0ed/FLAG8871b84b3 [2019-12-07 14:58:44,596 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:58:44,596 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/sv-benchmarks/c/eca-rers2012/Problem10_label02.c [2019-12-07 14:58:44,606 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer/data/ee9acfd40/c38cd8150e8c4dc08f9af61715a6d0ed/FLAG8871b84b3 [2019-12-07 14:58:45,077 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer/data/ee9acfd40/c38cd8150e8c4dc08f9af61715a6d0ed [2019-12-07 14:58:45,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:58:45,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:58:45,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:58:45,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:58:45,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:58:45,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:58:45" (1/1) ... [2019-12-07 14:58:45,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54887dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:45, skipping insertion in model container [2019-12-07 14:58:45,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:58:45" (1/1) ... [2019-12-07 14:58:45,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:58:45,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:58:45,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:58:45,390 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:58:45,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:58:45,476 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:58:45,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:45 WrapperNode [2019-12-07 14:58:45,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:58:45,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:58:45,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:58:45,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:58:45,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:45" (1/1) ... [2019-12-07 14:58:45,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:45" (1/1) ... [2019-12-07 14:58:45,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:58:45,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:58:45,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:58:45,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:58:45,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:45" (1/1) ... [2019-12-07 14:58:45,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:45" (1/1) ... [2019-12-07 14:58:45,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:45" (1/1) ... [2019-12-07 14:58:45,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:45" (1/1) ... [2019-12-07 14:58:45,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:45" (1/1) ... [2019-12-07 14:58:45,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:45" (1/1) ... [2019-12-07 14:58:45,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:45" (1/1) ... [2019-12-07 14:58:45,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:58:45,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:58:45,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:58:45,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:58:45,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:58:45,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:58:45,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:58:46,346 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:58:46,347 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 14:58:46,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:58:46 BoogieIcfgContainer [2019-12-07 14:58:46,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:58:46,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:58:46,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:58:46,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:58:46,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:58:45" (1/3) ... [2019-12-07 14:58:46,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65395972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:58:46, skipping insertion in model container [2019-12-07 14:58:46,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:58:45" (2/3) ... [2019-12-07 14:58:46,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65395972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:58:46, skipping insertion in model container [2019-12-07 14:58:46,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:58:46" (3/3) ... [2019-12-07 14:58:46,354 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label02.c [2019-12-07 14:58:46,363 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:58:46,369 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:58:46,377 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 14:58:46,396 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:58:46,397 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:58:46,397 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:58:46,397 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:58:46,397 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:58:46,397 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:58:46,398 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:58:46,398 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:58:46,416 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2019-12-07 14:58:46,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-12-07 14:58:46,423 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:58:46,423 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:58:46,424 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:58:46,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:58:46,427 INFO L82 PathProgramCache]: Analyzing trace with hash 118092897, now seen corresponding path program 1 times [2019-12-07 14:58:46,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:58:46,433 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778631557] [2019-12-07 14:58:46,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:58:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:58:46,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:58:46,620 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778631557] [2019-12-07 14:58:46,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:58:46,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:58:46,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940339329] [2019-12-07 14:58:46,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:58:46,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:58:46,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:58:46,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:58:46,636 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 4 states. [2019-12-07 14:58:47,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:58:47,438 INFO L93 Difference]: Finished difference Result 709 states and 1261 transitions. [2019-12-07 14:58:47,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:58:47,439 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-12-07 14:58:47,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:58:47,451 INFO L225 Difference]: With dead ends: 709 [2019-12-07 14:58:47,451 INFO L226 Difference]: Without dead ends: 421 [2019-12-07 14:58:47,454 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:58:47,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-12-07 14:58:47,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2019-12-07 14:58:47,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2019-12-07 14:58:47,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 611 transitions. [2019-12-07 14:58:47,502 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 611 transitions. Word has length 59 [2019-12-07 14:58:47,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:58:47,502 INFO L462 AbstractCegarLoop]: Abstraction has 421 states and 611 transitions. [2019-12-07 14:58:47,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:58:47,502 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 611 transitions. [2019-12-07 14:58:47,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-12-07 14:58:47,506 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:58:47,506 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:58:47,507 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:58:47,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:58:47,507 INFO L82 PathProgramCache]: Analyzing trace with hash 362712702, now seen corresponding path program 1 times [2019-12-07 14:58:47,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:58:47,507 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981907035] [2019-12-07 14:58:47,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:58:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:58:47,619 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:58:47,620 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981907035] [2019-12-07 14:58:47,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:58:47,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:58:47,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020953955] [2019-12-07 14:58:47,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:58:47,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:58:47,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:58:47,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:58:47,622 INFO L87 Difference]: Start difference. First operand 421 states and 611 transitions. Second operand 4 states. [2019-12-07 14:58:48,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:58:48,173 INFO L93 Difference]: Finished difference Result 1674 states and 2436 transitions. [2019-12-07 14:58:48,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:58:48,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 129 [2019-12-07 14:58:48,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:58:48,179 INFO L225 Difference]: With dead ends: 1674 [2019-12-07 14:58:48,179 INFO L226 Difference]: Without dead ends: 1255 [2019-12-07 14:58:48,180 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:58:48,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2019-12-07 14:58:48,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2019-12-07 14:58:48,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2019-12-07 14:58:48,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1682 transitions. [2019-12-07 14:58:48,213 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1682 transitions. Word has length 129 [2019-12-07 14:58:48,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:58:48,214 INFO L462 AbstractCegarLoop]: Abstraction has 1255 states and 1682 transitions. [2019-12-07 14:58:48,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:58:48,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1682 transitions. [2019-12-07 14:58:48,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-12-07 14:58:48,216 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:58:48,217 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:58:48,217 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:58:48,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:58:48,217 INFO L82 PathProgramCache]: Analyzing trace with hash -775661752, now seen corresponding path program 1 times [2019-12-07 14:58:48,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:58:48,217 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415591027] [2019-12-07 14:58:48,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:58:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:58:48,340 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:58:48,340 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415591027] [2019-12-07 14:58:48,340 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371169447] [2019-12-07 14:58:48,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:58:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:58:48,387 INFO L264 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:58:48,394 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:58:48,430 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:58:48,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 14:58:48,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-12-07 14:58:48,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671850108] [2019-12-07 14:58:48,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:58:48,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:58:48,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:58:48,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:58:48,432 INFO L87 Difference]: Start difference. First operand 1255 states and 1682 transitions. Second operand 3 states. [2019-12-07 14:58:48,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:58:48,778 INFO L93 Difference]: Finished difference Result 2508 states and 3362 transitions. [2019-12-07 14:58:48,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:58:48,778 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2019-12-07 14:58:48,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:58:48,784 INFO L225 Difference]: With dead ends: 2508 [2019-12-07 14:58:48,784 INFO L226 Difference]: Without dead ends: 1255 [2019-12-07 14:58:48,785 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:58:48,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2019-12-07 14:58:48,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2019-12-07 14:58:48,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2019-12-07 14:58:48,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1620 transitions. [2019-12-07 14:58:48,809 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1620 transitions. Word has length 134 [2019-12-07 14:58:48,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:58:48,809 INFO L462 AbstractCegarLoop]: Abstraction has 1255 states and 1620 transitions. [2019-12-07 14:58:48,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:58:48,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1620 transitions. [2019-12-07 14:58:48,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-12-07 14:58:48,813 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:58:48,813 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:58:49,014 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:58:49,014 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:58:49,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:58:49,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1778156436, now seen corresponding path program 1 times [2019-12-07 14:58:49,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:58:49,014 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551379295] [2019-12-07 14:58:49,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:58:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:58:49,344 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 39 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-12-07 14:58:49,344 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551379295] [2019-12-07 14:58:49,344 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519167237] [2019-12-07 14:58:49,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:58:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:58:49,404 INFO L264 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:58:49,410 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:58:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-12-07 14:58:49,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 14:58:49,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2019-12-07 14:58:49,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108146497] [2019-12-07 14:58:49,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:58:49,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:58:49,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:58:49,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:58:49,462 INFO L87 Difference]: Start difference. First operand 1255 states and 1620 transitions. Second operand 3 states. [2019-12-07 14:58:49,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:58:49,852 INFO L93 Difference]: Finished difference Result 2230 states and 2850 transitions. [2019-12-07 14:58:49,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:58:49,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-12-07 14:58:49,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:58:49,862 INFO L225 Difference]: With dead ends: 2230 [2019-12-07 14:58:49,862 INFO L226 Difference]: Without dead ends: 2228 [2019-12-07 14:58:49,863 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 14:58:49,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2019-12-07 14:58:49,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1255. [2019-12-07 14:58:49,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2019-12-07 14:58:49,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1620 transitions. [2019-12-07 14:58:49,896 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1620 transitions. Word has length 189 [2019-12-07 14:58:49,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:58:49,896 INFO L462 AbstractCegarLoop]: Abstraction has 1255 states and 1620 transitions. [2019-12-07 14:58:49,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:58:49,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1620 transitions. [2019-12-07 14:58:49,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-12-07 14:58:49,899 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:58:49,899 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:58:50,099 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:58:50,100 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:58:50,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:58:50,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1310250032, now seen corresponding path program 1 times [2019-12-07 14:58:50,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:58:50,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830349222] [2019-12-07 14:58:50,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:58:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:58:50,202 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-12-07 14:58:50,202 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830349222] [2019-12-07 14:58:50,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:58:50,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 14:58:50,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368454388] [2019-12-07 14:58:50,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:58:50,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:58:50,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:58:50,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:58:50,203 INFO L87 Difference]: Start difference. First operand 1255 states and 1620 transitions. Second operand 4 states. [2019-12-07 14:58:50,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:58:50,797 INFO L93 Difference]: Finished difference Result 3479 states and 4485 transitions. [2019-12-07 14:58:50,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:58:50,797 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 233 [2019-12-07 14:58:50,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:58:50,798 INFO L225 Difference]: With dead ends: 3479 [2019-12-07 14:58:50,798 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 14:58:50,800 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:58:50,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 14:58:50,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 14:58:50,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 14:58:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 14:58:50,801 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 233 [2019-12-07 14:58:50,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:58:50,801 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:58:50,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:58:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:58:50,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 14:58:50,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 14:58:50,971 INFO L246 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2019-12-07 14:58:50,971 INFO L246 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,971 INFO L246 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,971 INFO L246 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,971 INFO L246 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,972 INFO L246 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2019-12-07 14:58:50,973 INFO L246 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,974 INFO L246 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,974 INFO L246 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,974 INFO L246 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,974 INFO L246 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,974 INFO L246 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2019-12-07 14:58:50,974 INFO L246 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2019-12-07 14:58:50,974 INFO L246 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2019-12-07 14:58:50,974 INFO L246 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2019-12-07 14:58:50,974 INFO L246 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2019-12-07 14:58:50,974 INFO L246 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2019-12-07 14:58:50,974 INFO L242 CegarLoopResult]: At program point L573(lines 20 574) the Hoare annotation is: (let ((.cse3 (not (= ~a19~0 6))) (.cse1 (<= ~a1~0 218)) (.cse2 (<= 1 ~a10~0)) (.cse4 (<= 9 ~a19~0)) (.cse0 (= ~a10~0 0))) (or (and (<= ~a1~0 23) .cse0) (and .cse1 .cse2) (and (not (= ~a10~0 3)) .cse2 .cse3) (and .cse3 (or (and .cse0 .cse4) (and .cse1 .cse0))) (and .cse2 .cse4) (and .cse0 (= ~a19~0 8)))) [2019-12-07 14:58:50,974 INFO L246 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2019-12-07 14:58:50,975 INFO L246 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L249 CegarLoopResult]: At program point L576(lines 576 592) the Hoare annotation is: true [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2019-12-07 14:58:50,976 INFO L246 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2019-12-07 14:58:50,977 INFO L246 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L242 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse3 (not (= ~a19~0 6))) (.cse1 (<= ~a1~0 218)) (.cse2 (<= 1 ~a10~0)) (.cse4 (<= 9 ~a19~0)) (.cse0 (= ~a10~0 0))) (or (and (<= ~a1~0 23) .cse0) (and .cse1 .cse2) (and (not (= ~a10~0 3)) .cse2 .cse3) (and .cse3 (or (and .cse0 .cse4) (and .cse1 .cse0))) (and .cse2 .cse4) (and .cse0 (= ~a19~0 8)))) [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2019-12-07 14:58:50,978 INFO L246 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2019-12-07 14:58:50,979 INFO L246 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,980 INFO L246 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2019-12-07 14:58:50,981 INFO L246 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2019-12-07 14:58:50,982 INFO L246 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 181) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2019-12-07 14:58:50,983 INFO L246 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2019-12-07 14:58:50,984 INFO L246 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2019-12-07 14:58:50,984 INFO L246 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2019-12-07 14:58:50,984 INFO L246 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2019-12-07 14:58:50,984 INFO L246 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2019-12-07 14:58:50,984 INFO L246 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2019-12-07 14:58:50,984 INFO L246 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2019-12-07 14:58:50,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:58:50 BoogieIcfgContainer [2019-12-07 14:58:50,997 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:58:50,997 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:58:50,997 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:58:50,997 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:58:50,997 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:58:46" (3/4) ... [2019-12-07 14:58:51,000 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 14:58:51,016 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 14:58:51,018 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 14:58:51,108 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9097f94f-9632-4f5b-bfc8-e23b24585292/bin/uautomizer/witness.graphml [2019-12-07 14:58:51,108 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:58:51,109 INFO L168 Benchmark]: Toolchain (without parser) took 6028.12 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 243.8 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -81.6 MB). Peak memory consumption was 162.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:58:51,110 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:58:51,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:58:51,110 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:58:51,111 INFO L168 Benchmark]: Boogie Preprocessor took 63.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:58:51,111 INFO L168 Benchmark]: RCFGBuilder took 735.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 963.3 MB in the end (delta: 110.1 MB). Peak memory consumption was 110.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:58:51,112 INFO L168 Benchmark]: TraceAbstraction took 4647.79 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 128.5 MB). Free memory was 963.3 MB in the beginning and 1.0 GB in the end (delta: -82.2 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:58:51,112 INFO L168 Benchmark]: Witness Printer took 110.96 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:58:51,114 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 394.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 735.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 963.3 MB in the end (delta: 110.1 MB). Peak memory consumption was 110.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4647.79 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 128.5 MB). Free memory was 963.3 MB in the beginning and 1.0 GB in the end (delta: -82.2 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. * Witness Printer took 110.96 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 181]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((a1 <= 23 && a10 == 0) || (a1 <= 218 && 1 <= a10)) || ((!(a10 == 3) && 1 <= a10) && !(a19 == 6))) || (!(a19 == 6) && ((a10 == 0 && 9 <= a19) || (a1 <= 218 && a10 == 0)))) || (1 <= a10 && 9 <= a19)) || (a10 == 0 && a19 == 8) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((((a1 <= 23 && a10 == 0) || (a1 <= 218 && 1 <= a10)) || ((!(a10 == 3) && 1 <= a10) && !(a19 == 6))) || (!(a19 == 6) && ((a10 == 0 && 9 <= a19) || (a1 <= 218 && a10 == 0)))) || (1 <= a10 && 9 <= a19)) || (a10 == 0 && a19 == 8) - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Result: SAFE, OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 271 SDtfs, 924 SDslu, 42 SDs, 0 SdLazy, 2790 SolverSat, 666 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 345 GetRequests, 326 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1255occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 973 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 38 NumberOfFragments, 123 HoareAnnotationTreeSize, 3 FomulaSimplifications, 504 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 110 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1067 NumberOfCodeBlocks, 1067 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1060 ConstructedInterpolants, 0 QuantifiedInterpolants, 702554 SizeOfPredicates, 2 NumberOfNonLiveVariables, 449 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 400/458 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...