./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label03.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_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label03.c -s /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/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 f42c4f56a812271285d4588532c54f82291ae69c .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:22:51,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:22:51,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:22:51,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:22:51,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:22:51,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:22:51,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:22:51,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:22:51,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:22:51,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:22:51,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:22:51,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:22:51,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:22:51,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:22:51,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:22:51,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:22:51,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:22:51,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:22:51,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:22:51,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:22:51,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:22:51,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:22:51,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:22:51,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:22:51,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:22:51,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:22:51,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:22:51,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:22:51,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:22:51,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:22:51,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:22:51,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:22:51,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:22:51,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:22:51,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:22:51,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:22:51,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:22:51,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:22:51,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:22:51,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:22:51,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:22:51,068 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 17:22:51,079 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:22:51,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:22:51,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:22:51,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:22:51,080 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:22:51,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:22:51,080 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:22:51,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:22:51,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:22:51,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:22:51,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:22:51,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:22:51,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:22:51,081 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:22:51,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:22:51,081 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:22:51,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:22:51,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:22:51,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:22:51,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:22:51,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:22:51,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:22:51,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:22:51,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:22:51,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:22:51,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:22:51,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:22:51,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:22:51,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:22:51,083 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_49248f1e-74ee-4c18-8321-288b1e51e1a9/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 -> f42c4f56a812271285d4588532c54f82291ae69c [2019-12-07 17:22:51,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:22:51,202 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:22:51,205 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:22:51,206 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:22:51,206 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:22:51,207 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2019-12-07 17:22:51,248 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/data/292b52f4c/d73c1612093b47b68950eae3dc082340/FLAG224d01657 [2019-12-07 17:22:51,627 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:22:51,628 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2019-12-07 17:22:51,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/data/292b52f4c/d73c1612093b47b68950eae3dc082340/FLAG224d01657 [2019-12-07 17:22:51,650 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/data/292b52f4c/d73c1612093b47b68950eae3dc082340 [2019-12-07 17:22:51,652 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:22:51,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:22:51,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:22:51,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:22:51,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:22:51,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:22:51" (1/1) ... [2019-12-07 17:22:51,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449728aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:22:51, skipping insertion in model container [2019-12-07 17:22:51,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:22:51" (1/1) ... [2019-12-07 17:22:51,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:22:51,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:22:51,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:22:51,972 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:22:52,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:22:52,050 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:22:52,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:22:52 WrapperNode [2019-12-07 17:22:52,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:22:52,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:22:52,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:22:52,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:22:52,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:22:52" (1/1) ... [2019-12-07 17:22:52,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:22:52" (1/1) ... [2019-12-07 17:22:52,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:22:52,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:22:52,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:22:52,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:22:52,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:22:52" (1/1) ... [2019-12-07 17:22:52,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:22:52" (1/1) ... [2019-12-07 17:22:52,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:22:52" (1/1) ... [2019-12-07 17:22:52,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:22:52" (1/1) ... [2019-12-07 17:22:52,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:22:52" (1/1) ... [2019-12-07 17:22:52,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:22:52" (1/1) ... [2019-12-07 17:22:52,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:22:52" (1/1) ... [2019-12-07 17:22:52,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:22:52,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:22:52,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:22:52,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:22:52,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:22:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/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 17:22:52,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:22:52,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:22:52,936 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:22:52,936 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 17:22:52,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:22:52 BoogieIcfgContainer [2019-12-07 17:22:52,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:22:52,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:22:52,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:22:52,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:22:52,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:22:51" (1/3) ... [2019-12-07 17:22:52,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a03fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:22:52, skipping insertion in model container [2019-12-07 17:22:52,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:22:52" (2/3) ... [2019-12-07 17:22:52,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a03fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:22:52, skipping insertion in model container [2019-12-07 17:22:52,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:22:52" (3/3) ... [2019-12-07 17:22:52,944 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label03.c [2019-12-07 17:22:52,953 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:22:52,959 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:22:52,970 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 17:22:52,990 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:22:52,990 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:22:52,990 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:22:52,990 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:22:52,990 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:22:52,991 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:22:52,991 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:22:52,991 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:22:53,007 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2019-12-07 17:22:53,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 17:22:53,012 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:22:53,013 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] [2019-12-07 17:22:53,014 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:22:53,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:22:53,018 INFO L82 PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times [2019-12-07 17:22:53,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:22:53,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816356940] [2019-12-07 17:22:53,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:22:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:22:53,196 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 17:22:53,197 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816356940] [2019-12-07 17:22:53,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:22:53,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:22:53,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170342918] [2019-12-07 17:22:53,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:22:53,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:22:53,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:22:53,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:22:53,213 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 4 states. [2019-12-07 17:22:54,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:22:54,206 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2019-12-07 17:22:54,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:22:54,207 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-12-07 17:22:54,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:22:54,220 INFO L225 Difference]: With dead ends: 850 [2019-12-07 17:22:54,220 INFO L226 Difference]: Without dead ends: 538 [2019-12-07 17:22:54,223 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 17:22:54,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-07 17:22:54,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-07 17:22:54,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-07 17:22:54,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 826 transitions. [2019-12-07 17:22:54,274 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 826 transitions. Word has length 51 [2019-12-07 17:22:54,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:22:54,274 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 826 transitions. [2019-12-07 17:22:54,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:22:54,274 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 826 transitions. [2019-12-07 17:22:54,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-12-07 17:22:54,278 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:22:54,278 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 17:22:54,278 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:22:54,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:22:54,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1750650828, now seen corresponding path program 1 times [2019-12-07 17:22:54,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:22:54,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214488649] [2019-12-07 17:22:54,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:22:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:22:54,372 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:22:54,372 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214488649] [2019-12-07 17:22:54,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:22:54,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:22:54,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978444248] [2019-12-07 17:22:54,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:22:54,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:22:54,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:22:54,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:22:54,374 INFO L87 Difference]: Start difference. First operand 538 states and 826 transitions. Second operand 4 states. [2019-12-07 17:22:55,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:22:55,155 INFO L93 Difference]: Finished difference Result 2142 states and 3296 transitions. [2019-12-07 17:22:55,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:22:55,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2019-12-07 17:22:55,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:22:55,164 INFO L225 Difference]: With dead ends: 2142 [2019-12-07 17:22:55,164 INFO L226 Difference]: Without dead ends: 1606 [2019-12-07 17:22:55,165 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 17:22:55,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2019-12-07 17:22:55,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2019-12-07 17:22:55,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2019-12-07 17:22:55,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2029 transitions. [2019-12-07 17:22:55,198 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2029 transitions. Word has length 116 [2019-12-07 17:22:55,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:22:55,199 INFO L462 AbstractCegarLoop]: Abstraction has 1428 states and 2029 transitions. [2019-12-07 17:22:55,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:22:55,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2029 transitions. [2019-12-07 17:22:55,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-12-07 17:22:55,201 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:22:55,202 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 17:22:55,202 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:22:55,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:22:55,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1221588022, now seen corresponding path program 1 times [2019-12-07 17:22:55,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:22:55,203 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124518379] [2019-12-07 17:22:55,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:22:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:22:55,265 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:22:55,266 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124518379] [2019-12-07 17:22:55,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:22:55,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:22:55,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048091339] [2019-12-07 17:22:55,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:22:55,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:22:55,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:22:55,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:22:55,268 INFO L87 Difference]: Start difference. First operand 1428 states and 2029 transitions. Second operand 4 states. [2019-12-07 17:22:56,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:22:56,146 INFO L93 Difference]: Finished difference Result 4636 states and 6632 transitions. [2019-12-07 17:22:56,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:22:56,146 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2019-12-07 17:22:56,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:22:56,163 INFO L225 Difference]: With dead ends: 4636 [2019-12-07 17:22:56,163 INFO L226 Difference]: Without dead ends: 3210 [2019-12-07 17:22:56,166 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 17:22:56,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2019-12-07 17:22:56,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 3030. [2019-12-07 17:22:56,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-12-07 17:22:56,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3969 transitions. [2019-12-07 17:22:56,214 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3969 transitions. Word has length 119 [2019-12-07 17:22:56,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:22:56,214 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3969 transitions. [2019-12-07 17:22:56,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:22:56,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3969 transitions. [2019-12-07 17:22:56,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-12-07 17:22:56,215 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:22:56,216 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:22:56,216 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:22:56,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:22:56,216 INFO L82 PathProgramCache]: Analyzing trace with hash 516842708, now seen corresponding path program 1 times [2019-12-07 17:22:56,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:22:56,216 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606299495] [2019-12-07 17:22:56,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:22:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:22:56,345 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 44 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:22:56,346 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606299495] [2019-12-07 17:22:56,346 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355888112] [2019-12-07 17:22:56,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:22:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:22:56,391 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 17:22:56,396 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:22:56,454 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:22:56,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 17:22:56,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-12-07 17:22:56,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775821088] [2019-12-07 17:22:56,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:22:56,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:22:56,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:22:56,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:22:56,456 INFO L87 Difference]: Start difference. First operand 3030 states and 3969 transitions. Second operand 4 states. [2019-12-07 17:22:57,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:22:57,183 INFO L93 Difference]: Finished difference Result 6116 states and 8025 transitions. [2019-12-07 17:22:57,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:22:57,183 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 131 [2019-12-07 17:22:57,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:22:57,198 INFO L225 Difference]: With dead ends: 6116 [2019-12-07 17:22:57,198 INFO L226 Difference]: Without dead ends: 3208 [2019-12-07 17:22:57,201 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:22:57,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2019-12-07 17:22:57,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2019-12-07 17:22:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-12-07 17:22:57,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3420 transitions. [2019-12-07 17:22:57,264 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3420 transitions. Word has length 131 [2019-12-07 17:22:57,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:22:57,264 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3420 transitions. [2019-12-07 17:22:57,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:22:57,264 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3420 transitions. [2019-12-07 17:22:57,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-12-07 17:22:57,267 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:22:57,267 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 17:22:57,468 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:22:57,468 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:22:57,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:22:57,469 INFO L82 PathProgramCache]: Analyzing trace with hash -2140852222, now seen corresponding path program 1 times [2019-12-07 17:22:57,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:22:57,469 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426282665] [2019-12-07 17:22:57,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:22:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:22:57,588 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-12-07 17:22:57,588 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426282665] [2019-12-07 17:22:57,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:22:57,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 17:22:57,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141042875] [2019-12-07 17:22:57,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:22:57,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:22:57,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:22:57,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:22:57,590 INFO L87 Difference]: Start difference. First operand 3030 states and 3420 transitions. Second operand 4 states. [2019-12-07 17:22:58,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:22:58,234 INFO L93 Difference]: Finished difference Result 7660 states and 8738 transitions. [2019-12-07 17:22:58,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:22:58,235 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 226 [2019-12-07 17:22:58,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:22:58,251 INFO L225 Difference]: With dead ends: 7660 [2019-12-07 17:22:58,251 INFO L226 Difference]: Without dead ends: 4810 [2019-12-07 17:22:58,254 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 17:22:58,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2019-12-07 17:22:58,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 3386. [2019-12-07 17:22:58,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2019-12-07 17:22:58,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3760 transitions. [2019-12-07 17:22:58,306 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3760 transitions. Word has length 226 [2019-12-07 17:22:58,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:22:58,306 INFO L462 AbstractCegarLoop]: Abstraction has 3386 states and 3760 transitions. [2019-12-07 17:22:58,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:22:58,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3760 transitions. [2019-12-07 17:22:58,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2019-12-07 17:22:58,313 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:22:58,313 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:22:58,313 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:22:58,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:22:58,314 INFO L82 PathProgramCache]: Analyzing trace with hash 669469216, now seen corresponding path program 1 times [2019-12-07 17:22:58,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:22:58,314 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254470524] [2019-12-07 17:22:58,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:22:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:22:58,792 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 442 proven. 65 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2019-12-07 17:22:58,793 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254470524] [2019-12-07 17:22:58,793 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848927503] [2019-12-07 17:22:58,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:22:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:22:58,879 INFO L264 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:22:58,889 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:22:59,011 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2019-12-07 17:22:59,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 17:22:59,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-12-07 17:22:59,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048497078] [2019-12-07 17:22:59,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:22:59,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:22:59,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:22:59,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:22:59,012 INFO L87 Difference]: Start difference. First operand 3386 states and 3760 transitions. Second operand 3 states. [2019-12-07 17:22:59,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:22:59,436 INFO L93 Difference]: Finished difference Result 7126 states and 7965 transitions. [2019-12-07 17:22:59,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:22:59,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 434 [2019-12-07 17:22:59,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:22:59,449 INFO L225 Difference]: With dead ends: 7126 [2019-12-07 17:22:59,450 INFO L226 Difference]: Without dead ends: 3920 [2019-12-07 17:22:59,452 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 433 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:22:59,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2019-12-07 17:22:59,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2019-12-07 17:22:59,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2019-12-07 17:22:59,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4118 transitions. [2019-12-07 17:22:59,498 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4118 transitions. Word has length 434 [2019-12-07 17:22:59,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:22:59,499 INFO L462 AbstractCegarLoop]: Abstraction has 3742 states and 4118 transitions. [2019-12-07 17:22:59,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:22:59,499 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4118 transitions. [2019-12-07 17:22:59,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2019-12-07 17:22:59,507 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:22:59,507 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 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 17:22:59,707 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:22:59,708 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:22:59,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:22:59,708 INFO L82 PathProgramCache]: Analyzing trace with hash -887839416, now seen corresponding path program 1 times [2019-12-07 17:22:59,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:22:59,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461861219] [2019-12-07 17:22:59,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:22:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:23:00,170 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 448 proven. 65 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2019-12-07 17:23:00,170 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461861219] [2019-12-07 17:23:00,171 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023198265] [2019-12-07 17:23:00,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:23:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:23:00,252 INFO L264 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 17:23:00,256 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:23:00,531 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 544 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2019-12-07 17:23:00,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 17:23:00,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2019-12-07 17:23:00,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296363771] [2019-12-07 17:23:00,532 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:23:00,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:23:00,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:23:00,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-12-07 17:23:00,533 INFO L87 Difference]: Start difference. First operand 3742 states and 4118 transitions. Second operand 7 states. [2019-12-07 17:23:01,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:23:01,056 INFO L93 Difference]: Finished difference Result 7454 states and 8190 transitions. [2019-12-07 17:23:01,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 17:23:01,056 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 459 [2019-12-07 17:23:01,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:23:01,068 INFO L225 Difference]: With dead ends: 7454 [2019-12-07 17:23:01,068 INFO L226 Difference]: Without dead ends: 3742 [2019-12-07 17:23:01,071 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 454 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-12-07 17:23:01,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2019-12-07 17:23:01,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3564. [2019-12-07 17:23:01,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2019-12-07 17:23:01,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3842 transitions. [2019-12-07 17:23:01,112 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3842 transitions. Word has length 459 [2019-12-07 17:23:01,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:23:01,112 INFO L462 AbstractCegarLoop]: Abstraction has 3564 states and 3842 transitions. [2019-12-07 17:23:01,112 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:23:01,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3842 transitions. [2019-12-07 17:23:01,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2019-12-07 17:23:01,123 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:23:01,123 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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] [2019-12-07 17:23:01,324 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:23:01,324 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:23:01,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:23:01,324 INFO L82 PathProgramCache]: Analyzing trace with hash 529060667, now seen corresponding path program 1 times [2019-12-07 17:23:01,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:23:01,325 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910331795] [2019-12-07 17:23:01,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:23:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:23:02,005 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 662 proven. 4 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2019-12-07 17:23:02,005 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910331795] [2019-12-07 17:23:02,005 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511546157] [2019-12-07 17:23:02,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:23:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:23:02,097 INFO L264 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 17:23:02,101 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:23:02,115 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:23:02,480 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 643 proven. 23 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2019-12-07 17:23:02,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:23:02,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-12-07 17:23:02,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536789731] [2019-12-07 17:23:02,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 17:23:02,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:23:02,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 17:23:02,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:23:02,482 INFO L87 Difference]: Start difference. First operand 3564 states and 3842 transitions. Second operand 8 states. [2019-12-07 17:23:03,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:23:03,565 INFO L93 Difference]: Finished difference Result 7358 states and 7921 transitions. [2019-12-07 17:23:03,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 17:23:03,566 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 586 [2019-12-07 17:23:03,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:23:03,581 INFO L225 Difference]: With dead ends: 7358 [2019-12-07 17:23:03,581 INFO L226 Difference]: Without dead ends: 3974 [2019-12-07 17:23:03,583 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-12-07 17:23:03,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3974 states. [2019-12-07 17:23:03,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3974 to 3564. [2019-12-07 17:23:03,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2019-12-07 17:23:03,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3840 transitions. [2019-12-07 17:23:03,632 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3840 transitions. Word has length 586 [2019-12-07 17:23:03,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:23:03,633 INFO L462 AbstractCegarLoop]: Abstraction has 3564 states and 3840 transitions. [2019-12-07 17:23:03,633 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 17:23:03,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3840 transitions. [2019-12-07 17:23:03,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2019-12-07 17:23:03,642 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:23:03,642 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 17:23:03,843 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:23:03,844 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:23:03,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:23:03,845 INFO L82 PathProgramCache]: Analyzing trace with hash 627454791, now seen corresponding path program 1 times [2019-12-07 17:23:03,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:23:03,846 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348662964] [2019-12-07 17:23:03,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:23:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:23:05,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1955 backedges. 1418 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2019-12-07 17:23:05,011 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348662964] [2019-12-07 17:23:05,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:23:05,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 17:23:05,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765159939] [2019-12-07 17:23:05,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 17:23:05,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:23:05,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 17:23:05,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:23:05,013 INFO L87 Difference]: Start difference. First operand 3564 states and 3840 transitions. Second operand 8 states. [2019-12-07 17:23:05,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:23:05,771 INFO L93 Difference]: Finished difference Result 6954 states and 7505 transitions. [2019-12-07 17:23:05,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 17:23:05,772 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 804 [2019-12-07 17:23:05,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:23:05,791 INFO L225 Difference]: With dead ends: 6954 [2019-12-07 17:23:05,791 INFO L226 Difference]: Without dead ends: 3570 [2019-12-07 17:23:05,795 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2019-12-07 17:23:05,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3570 states. [2019-12-07 17:23:05,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3570 to 3564. [2019-12-07 17:23:05,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2019-12-07 17:23:05,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3835 transitions. [2019-12-07 17:23:05,824 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3835 transitions. Word has length 804 [2019-12-07 17:23:05,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:23:05,825 INFO L462 AbstractCegarLoop]: Abstraction has 3564 states and 3835 transitions. [2019-12-07 17:23:05,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 17:23:05,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3835 transitions. [2019-12-07 17:23:05,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2019-12-07 17:23:05,830 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:23:05,831 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 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] [2019-12-07 17:23:05,831 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:23:05,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:23:05,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1386667544, now seen corresponding path program 1 times [2019-12-07 17:23:05,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:23:05,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152711915] [2019-12-07 17:23:05,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:23:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:23:06,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1463 proven. 155 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2019-12-07 17:23:06,421 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152711915] [2019-12-07 17:23:06,421 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806249972] [2019-12-07 17:23:06,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:23:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:23:06,548 INFO L264 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 17:23:06,555 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:23:06,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 1463 proven. 155 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2019-12-07 17:23:06,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:23:06,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2019-12-07 17:23:06,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411133582] [2019-12-07 17:23:06,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:23:06,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:23:06,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:23:06,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:23:06,923 INFO L87 Difference]: Start difference. First operand 3564 states and 3835 transitions. Second operand 5 states. [2019-12-07 17:23:07,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:23:07,654 INFO L93 Difference]: Finished difference Result 8372 states and 9101 transitions. [2019-12-07 17:23:07,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:23:07,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 830 [2019-12-07 17:23:07,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:23:07,666 INFO L225 Difference]: With dead ends: 8372 [2019-12-07 17:23:07,666 INFO L226 Difference]: Without dead ends: 4988 [2019-12-07 17:23:07,668 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 835 GetRequests, 832 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:23:07,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2019-12-07 17:23:07,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4632. [2019-12-07 17:23:07,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2019-12-07 17:23:07,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4984 transitions. [2019-12-07 17:23:07,707 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4984 transitions. Word has length 830 [2019-12-07 17:23:07,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:23:07,708 INFO L462 AbstractCegarLoop]: Abstraction has 4632 states and 4984 transitions. [2019-12-07 17:23:07,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:23:07,708 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4984 transitions. [2019-12-07 17:23:07,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2019-12-07 17:23:07,714 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:23:07,714 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 17:23:07,915 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:23:07,916 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:23:07,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:23:07,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1338545778, now seen corresponding path program 1 times [2019-12-07 17:23:07,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:23:07,917 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696099804] [2019-12-07 17:23:07,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:23:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:23:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2465 backedges. 1267 proven. 205 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2019-12-07 17:23:09,132 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696099804] [2019-12-07 17:23:09,132 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891728329] [2019-12-07 17:23:09,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:23:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:23:09,260 INFO L264 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 17:23:09,265 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:23:09,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2465 backedges. 1851 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2019-12-07 17:23:09,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 17:23:09,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-12-07 17:23:09,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652576267] [2019-12-07 17:23:09,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:23:09,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:23:09,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:23:09,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:23:09,836 INFO L87 Difference]: Start difference. First operand 4632 states and 4984 transitions. Second operand 3 states. [2019-12-07 17:23:10,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:23:10,179 INFO L93 Difference]: Finished difference Result 9438 states and 10182 transitions. [2019-12-07 17:23:10,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:23:10,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 881 [2019-12-07 17:23:10,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:23:10,180 INFO L225 Difference]: With dead ends: 9438 [2019-12-07 17:23:10,180 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 17:23:10,185 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 886 GetRequests, 880 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:23:10,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 17:23:10,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 17:23:10,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 17:23:10,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 17:23:10,185 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 881 [2019-12-07 17:23:10,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:23:10,186 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:23:10,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:23:10,186 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:23:10,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 17:23:10,386 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:23:10,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 17:23:10,598 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 33 [2019-12-07 17:23:10,695 INFO L246 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2019-12-07 17:23:10,695 INFO L246 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2019-12-07 17:23:10,695 INFO L246 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,695 INFO L246 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,695 INFO L246 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,695 INFO L246 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2019-12-07 17:23:10,695 INFO L246 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2019-12-07 17:23:10,695 INFO L246 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2019-12-07 17:23:10,695 INFO L246 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2019-12-07 17:23:10,695 INFO L246 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2019-12-07 17:23:10,695 INFO L246 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2019-12-07 17:23:10,695 INFO L246 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2019-12-07 17:23:10,695 INFO L246 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2019-12-07 17:23:10,695 INFO L246 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2019-12-07 17:23:10,696 INFO L246 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,697 INFO L246 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2019-12-07 17:23:10,698 INFO L246 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2019-12-07 17:23:10,699 INFO L246 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2019-12-07 17:23:10,699 INFO L246 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2019-12-07 17:23:10,699 INFO L246 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2019-12-07 17:23:10,699 INFO L246 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,699 INFO L246 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,699 INFO L246 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,699 INFO L246 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2019-12-07 17:23:10,699 INFO L246 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2019-12-07 17:23:10,699 INFO L246 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2019-12-07 17:23:10,699 INFO L246 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2019-12-07 17:23:10,699 INFO L246 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2019-12-07 17:23:10,699 INFO L246 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2019-12-07 17:23:10,699 INFO L246 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2019-12-07 17:23:10,699 INFO L246 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,700 INFO L246 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2019-12-07 17:23:10,701 INFO L246 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2019-12-07 17:23:10,701 INFO L246 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2019-12-07 17:23:10,701 INFO L246 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2019-12-07 17:23:10,701 INFO L246 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2019-12-07 17:23:10,701 INFO L246 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2019-12-07 17:23:10,701 INFO L246 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2019-12-07 17:23:10,701 INFO L246 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2019-12-07 17:23:10,701 INFO L246 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,701 INFO L246 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,701 INFO L246 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,701 INFO L246 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2019-12-07 17:23:10,701 INFO L246 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2019-12-07 17:23:10,701 INFO L246 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2019-12-07 17:23:10,701 INFO L246 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2019-12-07 17:23:10,702 INFO L246 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,703 INFO L246 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2019-12-07 17:23:10,704 INFO L246 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2019-12-07 17:23:10,705 INFO L246 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2019-12-07 17:23:10,705 INFO L246 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,705 INFO L246 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,705 INFO L242 CegarLoopResult]: At program point L871(lines 20 872) the Hoare annotation is: (let ((.cse1 (<= (+ ~a12~0 49) 0)) (.cse2 (not (= ~a21~0 10))) (.cse3 (not (= ~a21~0 9))) (.cse0 (= ~a24~0 1))) (or (and .cse0 .cse1 .cse2) (and (= ~a21~0 6) .cse1) (and .cse3 .cse0 .cse2) (and (not (= ~a15~0 5)) .cse0) (and .cse3 .cse0 (< 0 (+ ~a12~0 43))) (and (< 11 ~a12~0) .cse0))) [2019-12-07 17:23:10,705 INFO L246 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2019-12-07 17:23:10,705 INFO L246 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2019-12-07 17:23:10,705 INFO L246 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2019-12-07 17:23:10,705 INFO L246 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2019-12-07 17:23:10,705 INFO L246 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2019-12-07 17:23:10,705 INFO L246 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2019-12-07 17:23:10,705 INFO L246 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2019-12-07 17:23:10,706 INFO L246 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2019-12-07 17:23:10,706 INFO L246 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,706 INFO L246 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,706 INFO L249 CegarLoopResult]: At program point L874(lines 874 890) the Hoare annotation is: true [2019-12-07 17:23:10,706 INFO L246 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2019-12-07 17:23:10,706 INFO L246 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2019-12-07 17:23:10,706 INFO L246 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2019-12-07 17:23:10,706 INFO L246 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2019-12-07 17:23:10,706 INFO L246 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2019-12-07 17:23:10,706 INFO L246 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2019-12-07 17:23:10,706 INFO L246 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2019-12-07 17:23:10,706 INFO L246 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,706 INFO L246 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,706 INFO L246 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2019-12-07 17:23:10,706 INFO L246 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2019-12-07 17:23:10,707 INFO L246 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2019-12-07 17:23:10,707 INFO L246 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2019-12-07 17:23:10,707 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 17:23:10,707 INFO L246 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2019-12-07 17:23:10,707 INFO L246 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2019-12-07 17:23:10,707 INFO L246 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,707 INFO L246 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,707 INFO L246 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-12-07 17:23:10,707 INFO L246 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,707 INFO L246 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2019-12-07 17:23:10,707 INFO L242 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse1 (<= (+ ~a12~0 49) 0)) (.cse2 (not (= ~a21~0 10))) (.cse3 (not (= ~a21~0 9))) (.cse0 (= ~a24~0 1))) (or (and .cse0 .cse1 .cse2) (and (= ~a21~0 6) .cse1) (and .cse3 .cse0 .cse2) (and (not (= ~a15~0 5)) .cse0) (and .cse3 .cse0 (< 0 (+ ~a12~0 43))) (and (< 11 ~a12~0) .cse0))) [2019-12-07 17:23:10,707 INFO L246 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2019-12-07 17:23:10,707 INFO L246 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2019-12-07 17:23:10,708 INFO L246 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2019-12-07 17:23:10,708 INFO L246 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2019-12-07 17:23:10,708 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-12-07 17:23:10,708 INFO L246 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2019-12-07 17:23:10,708 INFO L246 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2019-12-07 17:23:10,708 INFO L246 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2019-12-07 17:23:10,708 INFO L246 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2019-12-07 17:23:10,708 INFO L246 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,708 INFO L246 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,708 INFO L246 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,708 INFO L246 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2019-12-07 17:23:10,708 INFO L246 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2019-12-07 17:23:10,709 INFO L246 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2019-12-07 17:23:10,709 INFO L246 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2019-12-07 17:23:10,709 INFO L246 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2019-12-07 17:23:10,709 INFO L246 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2019-12-07 17:23:10,709 INFO L246 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2019-12-07 17:23:10,709 INFO L246 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2019-12-07 17:23:10,709 INFO L246 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2019-12-07 17:23:10,709 INFO L246 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,709 INFO L246 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,709 INFO L246 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,710 INFO L246 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2019-12-07 17:23:10,710 INFO L246 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2019-12-07 17:23:10,710 INFO L246 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2019-12-07 17:23:10,710 INFO L246 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2019-12-07 17:23:10,710 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 17:23:10,710 INFO L246 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2019-12-07 17:23:10,710 INFO L246 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2019-12-07 17:23:10,710 INFO L246 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2019-12-07 17:23:10,710 INFO L246 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2019-12-07 17:23:10,710 INFO L246 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,710 INFO L246 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,710 INFO L246 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,710 INFO L246 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2019-12-07 17:23:10,711 INFO L246 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2019-12-07 17:23:10,711 INFO L246 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2019-12-07 17:23:10,711 INFO L246 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2019-12-07 17:23:10,711 INFO L246 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2019-12-07 17:23:10,711 INFO L246 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2019-12-07 17:23:10,711 INFO L246 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2019-12-07 17:23:10,711 INFO L246 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2019-12-07 17:23:10,711 INFO L246 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2019-12-07 17:23:10,711 INFO L246 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,711 INFO L246 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,711 INFO L246 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:23:10,712 INFO L246 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2019-12-07 17:23:10,712 INFO L246 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2019-12-07 17:23:10,712 INFO L246 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2019-12-07 17:23:10,712 INFO L246 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2019-12-07 17:23:10,712 INFO L246 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2019-12-07 17:23:10,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:23:10 BoogieIcfgContainer [2019-12-07 17:23:10,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:23:10,727 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:23:10,727 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:23:10,727 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:23:10,728 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:22:52" (3/4) ... [2019-12-07 17:23:10,731 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 17:23:10,751 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 17:23:10,752 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 17:23:10,843 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_49248f1e-74ee-4c18-8321-288b1e51e1a9/bin/uautomizer/witness.graphml [2019-12-07 17:23:10,843 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:23:10,844 INFO L168 Benchmark]: Toolchain (without parser) took 19191.03 ms. Allocated memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: 1.3 GB). Free memory was 940.7 MB in the beginning and 906.5 MB in the end (delta: 34.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. [2019-12-07 17:23:10,845 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:23:10,845 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -123.2 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:23:10,845 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.75 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:23:10,846 INFO L168 Benchmark]: Boogie Preprocessor took 53.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:23:10,846 INFO L168 Benchmark]: RCFGBuilder took 765.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 908.8 MB in the end (delta: 139.0 MB). Peak memory consumption was 139.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:23:10,846 INFO L168 Benchmark]: TraceAbstraction took 17788.21 ms. Allocated memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 908.8 MB in the beginning and 945.6 MB in the end (delta: -36.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2019-12-07 17:23:10,846 INFO L168 Benchmark]: Witness Printer took 116.46 ms. Allocated memory is still 2.3 GB. Free memory was 945.6 MB in the beginning and 906.5 MB in the end (delta: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:23:10,848 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 396.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -123.2 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.75 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 765.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 908.8 MB in the end (delta: 139.0 MB). Peak memory consumption was 139.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17788.21 ms. Allocated memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 908.8 MB in the beginning and 945.6 MB in the end (delta: -36.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. * Witness Printer took 116.46 ms. Allocated memory is still 2.3 GB. Free memory was 945.6 MB in the beginning and 906.5 MB in the end (delta: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 157]: 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: 880]: Loop Invariant Derived loop invariant: ((((((a24 == 1 && a12 + 49 <= 0) && !(a21 == 10)) || (a21 == 6 && a12 + 49 <= 0)) || ((!(a21 == 9) && a24 == 1) && !(a21 == 10))) || (!(a15 == 5) && a24 == 1)) || ((!(a21 == 9) && a24 == 1) && 0 < a12 + 43)) || (11 < a12 && a24 == 1) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((((((a24 == 1 && a12 + 49 <= 0) && !(a21 == 10)) || (a21 == 6 && a12 + 49 <= 0)) || ((!(a21 == 9) && a24 == 1) && !(a21 == 10))) || (!(a15 == 5) && a24 == 1)) || ((!(a21 == 9) && a24 == 1) && 0 < a12 + 43)) || (11 < a12 && a24 == 1) - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Result: SAFE, OverallTime: 17.3s, OverallIterations: 11, TraceHistogramMax: 8, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 843 SDtfs, 3195 SDslu, 144 SDs, 0 SdLazy, 9969 SolverSat, 1172 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3377 GetRequests, 3319 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4632occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 3088 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 72 NumberOfFragments, 127 HoareAnnotationTreeSize, 3 FomulaSimplifications, 4336 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1056 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 7958 NumberOfCodeBlocks, 7958 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7941 ConstructedInterpolants, 0 QuantifiedInterpolants, 19488721 SizeOfPredicates, 13 NumberOfNonLiveVariables, 4134 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 15154/15830 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...