./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label36.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_0bb50427-8aaf-4616-a7a5-6898d20a2753/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0bb50427-8aaf-4616-a7a5-6898d20a2753/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0bb50427-8aaf-4616-a7a5-6898d20a2753/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0bb50427-8aaf-4616-a7a5-6898d20a2753/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label36.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0bb50427-8aaf-4616-a7a5-6898d20a2753/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0bb50427-8aaf-4616-a7a5-6898d20a2753/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 c5d4c7b38a296f79910d0f6d17d9b88307731454 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:32:58,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:32:58,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:32:58,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:32:58,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:32:58,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:32:58,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:32:58,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:32:58,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:32:58,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:32:58,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:32:58,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:32:58,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:32:58,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:32:58,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:32:58,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:32:58,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:32:58,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:32:58,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:32:58,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:32:58,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:32:58,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:32:58,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:32:58,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:32:58,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:32:58,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:32:58,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:32:58,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:32:58,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:32:58,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:32:58,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:32:58,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:32:58,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:32:58,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:32:58,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:32:58,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:32:58,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:32:58,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:32:58,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:32:58,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:32:58,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:32:58,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0bb50427-8aaf-4616-a7a5-6898d20a2753/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:32:58,067 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:32:58,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:32:58,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:32:58,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:32:58,068 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:32:58,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:32:58,068 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:32:58,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:32:58,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:32:58,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:32:58,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:32:58,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:32:58,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:32:58,069 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:32:58,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:32:58,069 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:32:58,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:32:58,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:32:58,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:32:58,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:32:58,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:32:58,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:32:58,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:32:58,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:32:58,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:32:58,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:32:58,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:32:58,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:32:58,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:32:58,071 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_0bb50427-8aaf-4616-a7a5-6898d20a2753/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 -> c5d4c7b38a296f79910d0f6d17d9b88307731454 [2019-12-07 18:32:58,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:32:58,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:32:58,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:32:58,188 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:32:58,188 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:32:58,188 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0bb50427-8aaf-4616-a7a5-6898d20a2753/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label36.c [2019-12-07 18:32:58,226 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0bb50427-8aaf-4616-a7a5-6898d20a2753/bin/uautomizer/data/cc575119d/c6b0369566154e0cb11b1fbe21cd295d/FLAG99711f551 [2019-12-07 18:32:58,581 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:32:58,582 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0bb50427-8aaf-4616-a7a5-6898d20a2753/sv-benchmarks/c/eca-rers2012/Problem01_label36.c [2019-12-07 18:32:58,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0bb50427-8aaf-4616-a7a5-6898d20a2753/bin/uautomizer/data/cc575119d/c6b0369566154e0cb11b1fbe21cd295d/FLAG99711f551 [2019-12-07 18:32:58,599 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0bb50427-8aaf-4616-a7a5-6898d20a2753/bin/uautomizer/data/cc575119d/c6b0369566154e0cb11b1fbe21cd295d [2019-12-07 18:32:58,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:32:58,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:32:58,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:32:58,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:32:58,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:32:58,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:32:58" (1/1) ... [2019-12-07 18:32:58,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c51c803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:58, skipping insertion in model container [2019-12-07 18:32:58,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:32:58" (1/1) ... [2019-12-07 18:32:58,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:32:58,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:32:58,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:32:58,880 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:32:58,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:32:58,942 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:32:58,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:58 WrapperNode [2019-12-07 18:32:58,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:32:58,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:32:58,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:32:58,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:32:58,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:58" (1/1) ... [2019-12-07 18:32:58,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:58" (1/1) ... [2019-12-07 18:32:58,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:32:58,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:32:58,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:32:58,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:32:59,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:58" (1/1) ... [2019-12-07 18:32:59,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:58" (1/1) ... [2019-12-07 18:32:59,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:58" (1/1) ... [2019-12-07 18:32:59,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:58" (1/1) ... [2019-12-07 18:32:59,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:58" (1/1) ... [2019-12-07 18:32:59,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:58" (1/1) ... [2019-12-07 18:32:59,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:58" (1/1) ... [2019-12-07 18:32:59,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:32:59,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:32:59,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:32:59,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:32:59,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0bb50427-8aaf-4616-a7a5-6898d20a2753/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 18:32:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:32:59,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:32:59,666 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:32:59,666 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 18:32:59,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:32:59 BoogieIcfgContainer [2019-12-07 18:32:59,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:32:59,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:32:59,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:32:59,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:32:59,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:32:58" (1/3) ... [2019-12-07 18:32:59,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f25a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:32:59, skipping insertion in model container [2019-12-07 18:32:59,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:58" (2/3) ... [2019-12-07 18:32:59,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f25a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:32:59, skipping insertion in model container [2019-12-07 18:32:59,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:32:59" (3/3) ... [2019-12-07 18:32:59,672 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label36.c [2019-12-07 18:32:59,678 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:32:59,682 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:32:59,689 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:32:59,706 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:32:59,706 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:32:59,706 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:32:59,706 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:32:59,706 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:32:59,706 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:32:59,706 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:32:59,707 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:32:59,721 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-12-07 18:32:59,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-12-07 18:32:59,728 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:32:59,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:32:59,729 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:32:59,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:59,733 INFO L82 PathProgramCache]: Analyzing trace with hash 2059373479, now seen corresponding path program 1 times [2019-12-07 18:32:59,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:59,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637302619] [2019-12-07 18:32:59,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:33:00,003 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 18:33:00,003 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637302619] [2019-12-07 18:33:00,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:33:00,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:33:00,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282836555] [2019-12-07 18:33:00,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:33:00,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:33:00,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:33:00,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:33:00,020 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 4 states. [2019-12-07 18:33:00,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:33:00,771 INFO L93 Difference]: Finished difference Result 662 states and 1178 transitions. [2019-12-07 18:33:00,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:33:00,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2019-12-07 18:33:00,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:33:00,783 INFO L225 Difference]: With dead ends: 662 [2019-12-07 18:33:00,784 INFO L226 Difference]: Without dead ends: 397 [2019-12-07 18:33:00,786 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 18:33:00,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-12-07 18:33:00,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 266. [2019-12-07 18:33:00,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-12-07 18:33:00,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2019-12-07 18:33:00,824 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 102 [2019-12-07 18:33:00,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:33:00,825 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2019-12-07 18:33:00,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:33:00,825 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2019-12-07 18:33:00,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-12-07 18:33:00,828 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:33:00,828 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:33:00,829 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:33:00,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:33:00,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1045586682, now seen corresponding path program 1 times [2019-12-07 18:33:00,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:33:00,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768809500] [2019-12-07 18:33:00,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:33:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:33:00,876 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:33:00,876 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768809500] [2019-12-07 18:33:00,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:33:00,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:33:00,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463888587] [2019-12-07 18:33:00,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:33:00,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:33:00,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:33:00,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:33:00,879 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 4 states. [2019-12-07 18:33:01,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:33:01,342 INFO L93 Difference]: Finished difference Result 1054 states and 1512 transitions. [2019-12-07 18:33:01,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:33:01,343 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2019-12-07 18:33:01,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:33:01,347 INFO L225 Difference]: With dead ends: 1054 [2019-12-07 18:33:01,347 INFO L226 Difference]: Without dead ends: 790 [2019-12-07 18:33:01,349 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 18:33:01,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-12-07 18:33:01,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-12-07 18:33:01,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-12-07 18:33:01,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1068 transitions. [2019-12-07 18:33:01,380 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1068 transitions. Word has length 108 [2019-12-07 18:33:01,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:33:01,380 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1068 transitions. [2019-12-07 18:33:01,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:33:01,381 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1068 transitions. [2019-12-07 18:33:01,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-12-07 18:33:01,385 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:33:01,385 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:33:01,385 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:33:01,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:33:01,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1471586822, now seen corresponding path program 1 times [2019-12-07 18:33:01,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:33:01,386 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753691221] [2019-12-07 18:33:01,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:33:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:33:01,482 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:33:01,482 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753691221] [2019-12-07 18:33:01,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:33:01,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:33:01,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532501384] [2019-12-07 18:33:01,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:33:01,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:33:01,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:33:01,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:33:01,483 INFO L87 Difference]: Start difference. First operand 790 states and 1068 transitions. Second operand 3 states. [2019-12-07 18:33:01,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:33:01,786 INFO L93 Difference]: Finished difference Result 2102 states and 2852 transitions. [2019-12-07 18:33:01,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:33:01,787 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2019-12-07 18:33:01,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:33:01,793 INFO L225 Difference]: With dead ends: 2102 [2019-12-07 18:33:01,794 INFO L226 Difference]: Without dead ends: 1183 [2019-12-07 18:33:01,795 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:33:01,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2019-12-07 18:33:01,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1052. [2019-12-07 18:33:01,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2019-12-07 18:33:01,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1319 transitions. [2019-12-07 18:33:01,820 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1319 transitions. Word has length 109 [2019-12-07 18:33:01,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:33:01,820 INFO L462 AbstractCegarLoop]: Abstraction has 1052 states and 1319 transitions. [2019-12-07 18:33:01,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:33:01,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1319 transitions. [2019-12-07 18:33:01,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-12-07 18:33:01,822 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:33:01,822 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:33:01,822 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:33:01,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:33:01,823 INFO L82 PathProgramCache]: Analyzing trace with hash 818956648, now seen corresponding path program 1 times [2019-12-07 18:33:01,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:33:01,823 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717495516] [2019-12-07 18:33:01,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:33:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:33:01,863 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-12-07 18:33:01,864 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717495516] [2019-12-07 18:33:01,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:33:01,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:33:01,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054956160] [2019-12-07 18:33:01,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:33:01,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:33:01,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:33:01,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:33:01,865 INFO L87 Difference]: Start difference. First operand 1052 states and 1319 transitions. Second operand 3 states. [2019-12-07 18:33:02,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:33:02,202 INFO L93 Difference]: Finished difference Result 2757 states and 3480 transitions. [2019-12-07 18:33:02,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:33:02,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2019-12-07 18:33:02,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:33:02,208 INFO L225 Difference]: With dead ends: 2757 [2019-12-07 18:33:02,208 INFO L226 Difference]: Without dead ends: 1576 [2019-12-07 18:33:02,210 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:33:02,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2019-12-07 18:33:02,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2019-12-07 18:33:02,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2019-12-07 18:33:02,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1638 transitions. [2019-12-07 18:33:02,233 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1638 transitions. Word has length 117 [2019-12-07 18:33:02,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:33:02,233 INFO L462 AbstractCegarLoop]: Abstraction has 1445 states and 1638 transitions. [2019-12-07 18:33:02,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:33:02,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1638 transitions. [2019-12-07 18:33:02,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-12-07 18:33:02,235 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:33:02,235 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:33:02,235 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:33:02,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:33:02,235 INFO L82 PathProgramCache]: Analyzing trace with hash -343867564, now seen corresponding path program 1 times [2019-12-07 18:33:02,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:33:02,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105314529] [2019-12-07 18:33:02,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:33:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:33:02,298 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-07 18:33:02,298 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105314529] [2019-12-07 18:33:02,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:33:02,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:33:02,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380332832] [2019-12-07 18:33:02,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:33:02,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:33:02,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:33:02,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:33:02,299 INFO L87 Difference]: Start difference. First operand 1445 states and 1638 transitions. Second operand 4 states. [2019-12-07 18:33:02,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:33:02,749 INFO L93 Difference]: Finished difference Result 3027 states and 3424 transitions. [2019-12-07 18:33:02,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:33:02,750 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 125 [2019-12-07 18:33:02,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:33:02,757 INFO L225 Difference]: With dead ends: 3027 [2019-12-07 18:33:02,758 INFO L226 Difference]: Without dead ends: 1584 [2019-12-07 18:33:02,760 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:33:02,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2019-12-07 18:33:02,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1576. [2019-12-07 18:33:02,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2019-12-07 18:33:02,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1772 transitions. [2019-12-07 18:33:02,795 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1772 transitions. Word has length 125 [2019-12-07 18:33:02,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:33:02,795 INFO L462 AbstractCegarLoop]: Abstraction has 1576 states and 1772 transitions. [2019-12-07 18:33:02,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:33:02,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1772 transitions. [2019-12-07 18:33:02,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-12-07 18:33:02,798 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:33:02,798 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:33:02,799 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:33:02,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:33:02,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1453681636, now seen corresponding path program 1 times [2019-12-07 18:33:02,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:33:02,799 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019675169] [2019-12-07 18:33:02,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:33:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:33:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:33:02,856 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019675169] [2019-12-07 18:33:02,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:33:02,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:33:02,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041556571] [2019-12-07 18:33:02,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:33:02,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:33:02,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:33:02,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:33:02,858 INFO L87 Difference]: Start difference. First operand 1576 states and 1772 transitions. Second operand 4 states. [2019-12-07 18:33:03,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:33:03,315 INFO L93 Difference]: Finished difference Result 3674 states and 4184 transitions. [2019-12-07 18:33:03,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:33:03,315 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 129 [2019-12-07 18:33:03,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:33:03,325 INFO L225 Difference]: With dead ends: 3674 [2019-12-07 18:33:03,325 INFO L226 Difference]: Without dead ends: 2231 [2019-12-07 18:33:03,327 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 18:33:03,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2019-12-07 18:33:03,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1838. [2019-12-07 18:33:03,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-12-07 18:33:03,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2024 transitions. [2019-12-07 18:33:03,371 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2024 transitions. Word has length 129 [2019-12-07 18:33:03,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:33:03,371 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 2024 transitions. [2019-12-07 18:33:03,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:33:03,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2024 transitions. [2019-12-07 18:33:03,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-12-07 18:33:03,375 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:33:03,375 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2019-12-07 18:33:03,375 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:33:03,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:33:03,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1636914809, now seen corresponding path program 1 times [2019-12-07 18:33:03,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:33:03,376 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636465923] [2019-12-07 18:33:03,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:33:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:33:03,493 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-07 18:33:03,494 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636465923] [2019-12-07 18:33:03,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:33:03,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 18:33:03,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023295282] [2019-12-07 18:33:03,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:33:03,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:33:03,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:33:03,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:33:03,495 INFO L87 Difference]: Start difference. First operand 1838 states and 2024 transitions. Second operand 8 states. [2019-12-07 18:33:04,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:33:04,170 INFO L93 Difference]: Finished difference Result 3981 states and 4389 transitions. [2019-12-07 18:33:04,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:33:04,170 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 143 [2019-12-07 18:33:04,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:33:04,178 INFO L225 Difference]: With dead ends: 3981 [2019-12-07 18:33:04,178 INFO L226 Difference]: Without dead ends: 2276 [2019-12-07 18:33:04,179 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:33:04,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2019-12-07 18:33:04,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 1969. [2019-12-07 18:33:04,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2019-12-07 18:33:04,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2156 transitions. [2019-12-07 18:33:04,207 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2156 transitions. Word has length 143 [2019-12-07 18:33:04,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:33:04,207 INFO L462 AbstractCegarLoop]: Abstraction has 1969 states and 2156 transitions. [2019-12-07 18:33:04,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:33:04,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2156 transitions. [2019-12-07 18:33:04,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-12-07 18:33:04,209 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:33:04,210 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:04,210 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:33:04,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:33:04,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1350213335, now seen corresponding path program 1 times [2019-12-07 18:33:04,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:33:04,210 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086251721] [2019-12-07 18:33:04,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:33:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:33:04,299 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:33:04,299 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086251721] [2019-12-07 18:33:04,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:33:04,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 18:33:04,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798025206] [2019-12-07 18:33:04,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:33:04,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:33:04,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:33:04,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:33:04,300 INFO L87 Difference]: Start difference. First operand 1969 states and 2156 transitions. Second operand 6 states. [2019-12-07 18:33:04,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:33:04,752 INFO L93 Difference]: Finished difference Result 4207 states and 4601 transitions. [2019-12-07 18:33:04,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:33:04,752 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2019-12-07 18:33:04,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:33:04,759 INFO L225 Difference]: With dead ends: 4207 [2019-12-07 18:33:04,759 INFO L226 Difference]: Without dead ends: 2371 [2019-12-07 18:33:04,761 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:33:04,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2019-12-07 18:33:04,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 1838. [2019-12-07 18:33:04,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-12-07 18:33:04,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 1972 transitions. [2019-12-07 18:33:04,784 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 1972 transitions. Word has length 176 [2019-12-07 18:33:04,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:33:04,785 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 1972 transitions. [2019-12-07 18:33:04,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:33:04,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 1972 transitions. [2019-12-07 18:33:04,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-12-07 18:33:04,788 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:33:04,789 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 18:33:04,789 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:33:04,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:33:04,789 INFO L82 PathProgramCache]: Analyzing trace with hash -800900639, now seen corresponding path program 1 times [2019-12-07 18:33:04,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:33:04,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779042127] [2019-12-07 18:33:04,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:33:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:33:04,957 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2019-12-07 18:33:04,957 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779042127] [2019-12-07 18:33:04,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:33:04,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 18:33:04,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567271283] [2019-12-07 18:33:04,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:33:04,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:33:04,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:33:04,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:33:04,959 INFO L87 Difference]: Start difference. First operand 1838 states and 1972 transitions. Second operand 6 states. [2019-12-07 18:33:05,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:33:05,418 INFO L93 Difference]: Finished difference Result 3704 states and 3991 transitions. [2019-12-07 18:33:05,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:33:05,419 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 274 [2019-12-07 18:33:05,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:33:05,419 INFO L225 Difference]: With dead ends: 3704 [2019-12-07 18:33:05,419 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:33:05,421 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:33:05,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:33:05,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:33:05,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:33:05,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:33:05,422 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 274 [2019-12-07 18:33:05,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:33:05,422 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:33:05,422 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:33:05,422 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:33:05,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:33:05,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:33:05,685 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 26 [2019-12-07 18:33:05,834 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 26 [2019-12-07 18:33:05,836 INFO L246 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-12-07 18:33:05,836 INFO L246 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-12-07 18:33:05,836 INFO L246 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,836 INFO L246 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,836 INFO L246 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,837 INFO L246 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,837 INFO L246 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,837 INFO L246 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,837 INFO L246 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-12-07 18:33:05,837 INFO L246 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-12-07 18:33:05,837 INFO L246 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2019-12-07 18:33:05,837 INFO L246 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2019-12-07 18:33:05,837 INFO L246 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2019-12-07 18:33:05,837 INFO L246 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2019-12-07 18:33:05,837 INFO L246 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2019-12-07 18:33:05,837 INFO L246 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2019-12-07 18:33:05,837 INFO L246 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-12-07 18:33:05,837 INFO L246 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-12-07 18:33:05,837 INFO L246 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,838 INFO L246 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,838 INFO L246 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,838 INFO L246 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,838 INFO L246 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,838 INFO L246 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,838 INFO L246 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-12-07 18:33:05,838 INFO L246 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-12-07 18:33:05,838 INFO L246 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2019-12-07 18:33:05,838 INFO L246 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2019-12-07 18:33:05,838 INFO L246 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2019-12-07 18:33:05,838 INFO L246 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2019-12-07 18:33:05,839 INFO L246 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2019-12-07 18:33:05,839 INFO L246 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2019-12-07 18:33:05,839 INFO L246 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-12-07 18:33:05,839 INFO L246 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-12-07 18:33:05,839 INFO L246 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-12-07 18:33:05,839 INFO L246 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-12-07 18:33:05,839 INFO L246 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-12-07 18:33:05,839 INFO L246 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-12-07 18:33:05,839 INFO L246 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-12-07 18:33:05,839 INFO L246 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,840 INFO L246 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,840 INFO L246 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,840 INFO L246 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,840 INFO L246 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,840 INFO L246 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-12-07 18:33:05,840 INFO L246 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-12-07 18:33:05,840 INFO L246 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2019-12-07 18:33:05,840 INFO L246 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2019-12-07 18:33:05,840 INFO L246 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2019-12-07 18:33:05,840 INFO L246 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2019-12-07 18:33:05,840 INFO L246 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2019-12-07 18:33:05,841 INFO L246 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2019-12-07 18:33:05,841 INFO L246 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-12-07 18:33:05,841 INFO L242 CegarLoopResult]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse3 (= ~a16~0 6)) (.cse0 (= ~a17~0 1)) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a20~0 1)) (.cse4 (not (= 13 ~a8~0)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse3 .cse4) (= 1 ~a7~0) (and .cse0 .cse1 .cse2 .cse4) (= ~a16~0 4) (and .cse4 (= ~a16~0 5)))) [2019-12-07 18:33:05,841 INFO L246 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,841 INFO L246 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,841 INFO L246 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,841 INFO L246 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,841 INFO L246 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L249 CegarLoopResult]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,842 INFO L246 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2019-12-07 18:33:05,843 INFO L246 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2019-12-07 18:33:05,844 INFO L246 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2019-12-07 18:33:05,844 INFO L246 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2019-12-07 18:33:05,844 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:33:05,844 INFO L246 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-12-07 18:33:05,844 INFO L246 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-12-07 18:33:05,844 INFO L246 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-12-07 18:33:05,844 INFO L246 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-12-07 18:33:05,844 INFO L246 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-12-07 18:33:05,844 INFO L246 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-12-07 18:33:05,844 INFO L246 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,844 INFO L242 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse3 (= ~a16~0 6)) (.cse0 (= ~a17~0 1)) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a20~0 1)) (.cse4 (not (= 13 ~a8~0)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse3 .cse4) (= 1 ~a7~0) (and .cse0 .cse1 .cse2 .cse4) (= ~a16~0 4) (and .cse4 (= ~a16~0 5)))) [2019-12-07 18:33:05,844 INFO L246 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,844 INFO L246 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,844 INFO L246 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,844 INFO L246 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-12-07 18:33:05,845 INFO L246 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2019-12-07 18:33:05,846 INFO L246 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2019-12-07 18:33:05,847 INFO L246 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2019-12-07 18:33:05,847 INFO L246 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2019-12-07 18:33:05,847 INFO L246 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2019-12-07 18:33:05,847 INFO L246 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2019-12-07 18:33:05,847 INFO L246 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-12-07 18:33:05,847 INFO L246 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-12-07 18:33:05,847 INFO L246 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-12-07 18:33:05,847 INFO L246 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-12-07 18:33:05,847 INFO L246 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,847 INFO L246 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,847 INFO L246 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,847 INFO L246 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,847 INFO L246 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,847 INFO L246 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-12-07 18:33:05,848 INFO L246 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,848 INFO L246 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-12-07 18:33:05,848 INFO L246 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-12-07 18:33:05,848 INFO L246 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2019-12-07 18:33:05,848 INFO L246 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2019-12-07 18:33:05,848 INFO L246 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2019-12-07 18:33:05,848 INFO L246 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2019-12-07 18:33:05,848 INFO L246 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2019-12-07 18:33:05,848 INFO L246 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2019-12-07 18:33:05,848 INFO L246 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-12-07 18:33:05,848 INFO L246 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-12-07 18:33:05,848 INFO L246 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 482) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-12-07 18:33:05,849 INFO L246 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-12-07 18:33:05,850 INFO L246 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-12-07 18:33:05,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:33:05 BoogieIcfgContainer [2019-12-07 18:33:05,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:33:05,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:33:05,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:33:05,866 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:33:05,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:32:59" (3/4) ... [2019-12-07 18:33:05,870 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:33:05,886 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 18:33:05,887 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 18:33:05,990 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0bb50427-8aaf-4616-a7a5-6898d20a2753/bin/uautomizer/witness.graphml [2019-12-07 18:33:05,990 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:33:05,991 INFO L168 Benchmark]: Toolchain (without parser) took 7389.22 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 231.2 MB). Free memory was 939.8 MB in the beginning and 911.5 MB in the end (delta: 28.3 MB). Peak memory consumption was 259.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:33:05,991 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:33:05,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -128.1 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:33:05,992 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.16 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 18:33:05,992 INFO L168 Benchmark]: Boogie Preprocessor took 38.60 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 18:33:05,992 INFO L168 Benchmark]: RCFGBuilder took 633.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 946.3 MB in the end (delta: 110.8 MB). Peak memory consumption was 110.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:33:05,992 INFO L168 Benchmark]: TraceAbstraction took 6198.10 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 137.9 MB). Free memory was 946.3 MB in the beginning and 931.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 152.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:33:05,992 INFO L168 Benchmark]: Witness Printer took 123.67 ms. Allocated memory is still 1.3 GB. Free memory was 931.2 MB in the beginning and 911.5 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:33:05,994 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 340.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -128.1 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.16 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. * Boogie Preprocessor took 38.60 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 633.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 946.3 MB in the end (delta: 110.8 MB). Peak memory consumption was 110.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6198.10 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 137.9 MB). Free memory was 946.3 MB in the beginning and 931.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 152.9 MB. Max. memory is 11.5 GB. * Witness Printer took 123.67 ms. Allocated memory is still 1.3 GB. Free memory was 931.2 MB in the beginning and 911.5 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 482]: 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: 30]: Loop Invariant Derived loop invariant: (((((((a17 == 1 && a21 == 1) && a20 == 1) && a16 == 6) || (a16 == 6 && !(13 == a8))) || 1 == a7) || (((a17 == 1 && a21 == 1) && a20 == 1) && !(13 == a8))) || a16 == 4) || (!(13 == a8) && a16 == 5) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((a17 == 1 && a21 == 1) && a20 == 1) && a16 == 6) || (a16 == 6 && !(13 == a8))) || 1 == a7) || (((a17 == 1 && a21 == 1) && a20 == 1) && !(13 == a8))) || a16 == 4) || (!(13 == a8) && a16 == 5) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Result: SAFE, OverallTime: 5.7s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, HoareTripleCheckerStatistics: 639 SDtfs, 2551 SDslu, 111 SDs, 0 SdLazy, 5415 SolverSat, 841 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1969occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1634 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 61 NumberOfFragments, 101 HoareAnnotationTreeSize, 3 FomulaSimplifications, 8222 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2161 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1283 NumberOfCodeBlocks, 1283 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1274 ConstructedInterpolants, 0 QuantifiedInterpolants, 511835 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 627/627 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...