./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label50.c -s /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/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 84719fa7c370f946c431f46475b54ba30487ebc7 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 04:13:15,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:13:15,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:13:15,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:13:15,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:13:15,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:13:15,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:13:15,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:13:15,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:13:15,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:13:15,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:13:15,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:13:15,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:13:15,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:13:15,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:13:15,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:13:15,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:13:15,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:13:15,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:13:15,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:13:15,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:13:15,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:13:15,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:13:15,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:13:15,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:13:15,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:13:15,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:13:15,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:13:15,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:13:15,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:13:15,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:13:15,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:13:15,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:13:15,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:13:15,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:13:15,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:13:15,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:13:15,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:13:15,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:13:15,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:13:15,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:13:15,089 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 04:13:15,117 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:13:15,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:13:15,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:13:15,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:13:15,119 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:13:15,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:13:15,119 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:13:15,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:13:15,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:13:15,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:13:15,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:13:15,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:13:15,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:13:15,121 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:13:15,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:13:15,121 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:13:15,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:13:15,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:13:15,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:13:15,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:13:15,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:13:15,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:13:15,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:13:15,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:13:15,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:13:15,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:13:15,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 04:13:15,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:13:15,124 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_60426061-1705-491d-9dcc-0e7c25918944/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 -> 84719fa7c370f946c431f46475b54ba30487ebc7 [2019-11-20 04:13:15,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:13:15,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:13:15,357 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:13:15,359 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:13:15,359 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:13:15,361 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label50.c [2019-11-20 04:13:15,432 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/bin/uautomizer/data/8a93da7f9/91f39028d6a74bcbb4b0569253232d6f/FLAGfc8033d80 [2019-11-20 04:13:16,089 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:13:16,090 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/sv-benchmarks/c/eca-rers2012/Problem14_label50.c [2019-11-20 04:13:16,106 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/bin/uautomizer/data/8a93da7f9/91f39028d6a74bcbb4b0569253232d6f/FLAGfc8033d80 [2019-11-20 04:13:16,344 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/bin/uautomizer/data/8a93da7f9/91f39028d6a74bcbb4b0569253232d6f [2019-11-20 04:13:16,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:13:16,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:13:16,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:13:16,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:13:16,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:13:16,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:13:16" (1/1) ... [2019-11-20 04:13:16,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10479bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:13:16, skipping insertion in model container [2019-11-20 04:13:16,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:13:16" (1/1) ... [2019-11-20 04:13:16,369 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:13:16,445 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:13:17,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:13:17,005 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:13:17,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:13:17,264 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:13:17,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:13:17 WrapperNode [2019-11-20 04:13:17,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:13:17,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:13:17,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:13:17,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:13:17,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:13:17" (1/1) ... [2019-11-20 04:13:17,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:13:17" (1/1) ... [2019-11-20 04:13:17,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:13:17,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:13:17,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:13:17,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:13:17,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:13:17" (1/1) ... [2019-11-20 04:13:17,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:13:17" (1/1) ... [2019-11-20 04:13:17,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:13:17" (1/1) ... [2019-11-20 04:13:17,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:13:17" (1/1) ... [2019-11-20 04:13:17,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:13:17" (1/1) ... [2019-11-20 04:13:17,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:13:17" (1/1) ... [2019-11-20 04:13:17,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:13:17" (1/1) ... [2019-11-20 04:13:17,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:13:17,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:13:17,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:13:17,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:13:17,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:13:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/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 [2019-11-20 04:13:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:13:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:13:19,350 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:13:19,350 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 04:13:19,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:13:19 BoogieIcfgContainer [2019-11-20 04:13:19,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:13:19,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:13:19,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:13:19,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:13:19,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:13:16" (1/3) ... [2019-11-20 04:13:19,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28720fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:13:19, skipping insertion in model container [2019-11-20 04:13:19,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:13:17" (2/3) ... [2019-11-20 04:13:19,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28720fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:13:19, skipping insertion in model container [2019-11-20 04:13:19,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:13:19" (3/3) ... [2019-11-20 04:13:19,363 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label50.c [2019-11-20 04:13:19,374 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:13:19,382 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 04:13:19,395 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 04:13:19,440 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:13:19,440 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:13:19,441 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:13:19,441 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:13:19,441 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:13:19,442 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:13:19,442 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:13:19,444 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:13:19,478 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2019-11-20 04:13:19,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-20 04:13:19,490 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:19,491 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] [2019-11-20 04:13:19,492 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:19,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:19,498 INFO L82 PathProgramCache]: Analyzing trace with hash 2088660649, now seen corresponding path program 1 times [2019-11-20 04:13:19,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:19,510 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662255982] [2019-11-20 04:13:19,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:19,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:13:19,826 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662255982] [2019-11-20 04:13:19,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:13:19,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 04:13:19,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237642890] [2019-11-20 04:13:19,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:13:19,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:19,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:13:19,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:13:19,853 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 4 states. [2019-11-20 04:13:22,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:22,333 INFO L93 Difference]: Finished difference Result 866 states and 1574 transitions. [2019-11-20 04:13:22,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:13:22,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-11-20 04:13:22,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:22,369 INFO L225 Difference]: With dead ends: 866 [2019-11-20 04:13:22,369 INFO L226 Difference]: Without dead ends: 538 [2019-11-20 04:13:22,378 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 [2019-11-20 04:13:22,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-20 04:13:22,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-11-20 04:13:22,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-20 04:13:22,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 754 transitions. [2019-11-20 04:13:22,514 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 754 transitions. Word has length 37 [2019-11-20 04:13:22,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:22,515 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 754 transitions. [2019-11-20 04:13:22,515 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:13:22,515 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 754 transitions. [2019-11-20 04:13:22,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-11-20 04:13:22,530 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:22,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:13:22,532 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:22,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:22,533 INFO L82 PathProgramCache]: Analyzing trace with hash -46764254, now seen corresponding path program 1 times [2019-11-20 04:13:22,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:22,534 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455118876] [2019-11-20 04:13:22,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:23,129 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:13:23,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455118876] [2019-11-20 04:13:23,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:13:23,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 04:13:23,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364817882] [2019-11-20 04:13:23,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 04:13:23,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:23,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 04:13:23,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:13:23,133 INFO L87 Difference]: Start difference. First operand 538 states and 754 transitions. Second operand 6 states. [2019-11-20 04:13:25,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:25,291 INFO L93 Difference]: Finished difference Result 1964 states and 2764 transitions. [2019-11-20 04:13:25,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:13:25,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2019-11-20 04:13:25,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:25,301 INFO L225 Difference]: With dead ends: 1964 [2019-11-20 04:13:25,301 INFO L226 Difference]: Without dead ends: 1428 [2019-11-20 04:13:25,305 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:13:25,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2019-11-20 04:13:25,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2019-11-20 04:13:25,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2019-11-20 04:13:25,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1849 transitions. [2019-11-20 04:13:25,362 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1849 transitions. Word has length 145 [2019-11-20 04:13:25,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:25,364 INFO L462 AbstractCegarLoop]: Abstraction has 1428 states and 1849 transitions. [2019-11-20 04:13:25,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 04:13:25,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1849 transitions. [2019-11-20 04:13:25,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-11-20 04:13:25,369 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:25,369 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:13:25,369 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:25,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:25,370 INFO L82 PathProgramCache]: Analyzing trace with hash -215109710, now seen corresponding path program 1 times [2019-11-20 04:13:25,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:25,370 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233374967] [2019-11-20 04:13:25,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:25,502 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-20 04:13:25,502 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233374967] [2019-11-20 04:13:25,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:13:25,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 04:13:25,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604386914] [2019-11-20 04:13:25,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:13:25,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:25,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:13:25,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:13:25,506 INFO L87 Difference]: Start difference. First operand 1428 states and 1849 transitions. Second operand 4 states. [2019-11-20 04:13:26,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:26,999 INFO L93 Difference]: Finished difference Result 3922 states and 5314 transitions. [2019-11-20 04:13:26,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:13:26,999 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 211 [2019-11-20 04:13:27,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:27,021 INFO L225 Difference]: With dead ends: 3922 [2019-11-20 04:13:27,022 INFO L226 Difference]: Without dead ends: 2674 [2019-11-20 04:13:27,025 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 [2019-11-20 04:13:27,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2019-11-20 04:13:27,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2318. [2019-11-20 04:13:27,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2019-11-20 04:13:27,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2951 transitions. [2019-11-20 04:13:27,097 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2951 transitions. Word has length 211 [2019-11-20 04:13:27,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:27,098 INFO L462 AbstractCegarLoop]: Abstraction has 2318 states and 2951 transitions. [2019-11-20 04:13:27,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:13:27,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2951 transitions. [2019-11-20 04:13:27,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-11-20 04:13:27,114 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:27,114 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, 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] [2019-11-20 04:13:27,115 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:27,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:27,115 INFO L82 PathProgramCache]: Analyzing trace with hash -525795883, now seen corresponding path program 1 times [2019-11-20 04:13:27,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:27,116 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330191253] [2019-11-20 04:13:27,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:27,471 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 138 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 04:13:27,472 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330191253] [2019-11-20 04:13:27,472 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065355233] [2019-11-20 04:13:27,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/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 [2019-11-20 04:13:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:27,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 04:13:27,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:13:27,793 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-11-20 04:13:27,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 04:13:27,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2019-11-20 04:13:27,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098351783] [2019-11-20 04:13:27,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:13:27,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:27,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:13:27,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:13:27,797 INFO L87 Difference]: Start difference. First operand 2318 states and 2951 transitions. Second operand 3 states. [2019-11-20 04:13:28,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:28,828 INFO L93 Difference]: Finished difference Result 4456 states and 5716 transitions. [2019-11-20 04:13:28,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:13:28,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2019-11-20 04:13:28,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:28,847 INFO L225 Difference]: With dead ends: 4456 [2019-11-20 04:13:28,847 INFO L226 Difference]: Without dead ends: 2318 [2019-11-20 04:13:28,851 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:13:28,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2019-11-20 04:13:28,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2019-11-20 04:13:28,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2019-11-20 04:13:28,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2817 transitions. [2019-11-20 04:13:28,918 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2817 transitions. Word has length 225 [2019-11-20 04:13:28,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:28,921 INFO L462 AbstractCegarLoop]: Abstraction has 2318 states and 2817 transitions. [2019-11-20 04:13:28,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:13:28,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2817 transitions. [2019-11-20 04:13:28,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2019-11-20 04:13:28,928 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:28,928 INFO L410 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:13:29,132 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:13:29,132 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:29,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:29,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1918860878, now seen corresponding path program 1 times [2019-11-20 04:13:29,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:29,134 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585281166] [2019-11-20 04:13:29,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:29,479 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 235 proven. 4 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-11-20 04:13:29,479 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585281166] [2019-11-20 04:13:29,480 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827717429] [2019-11-20 04:13:29,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/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 [2019-11-20 04:13:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:29,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 04:13:29,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:13:29,734 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2019-11-20 04:13:29,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 04:13:29,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2019-11-20 04:13:29,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653514635] [2019-11-20 04:13:29,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:13:29,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:29,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:13:29,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:13:29,739 INFO L87 Difference]: Start difference. First operand 2318 states and 2817 transitions. Second operand 3 states. [2019-11-20 04:13:30,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:30,717 INFO L93 Difference]: Finished difference Result 5880 states and 7234 transitions. [2019-11-20 04:13:30,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:13:30,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 294 [2019-11-20 04:13:30,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:30,750 INFO L225 Difference]: With dead ends: 5880 [2019-11-20 04:13:30,751 INFO L226 Difference]: Without dead ends: 3742 [2019-11-20 04:13:30,754 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 293 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:13:30,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2019-11-20 04:13:30,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3564. [2019-11-20 04:13:30,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2019-11-20 04:13:30,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 4207 transitions. [2019-11-20 04:13:30,837 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 4207 transitions. Word has length 294 [2019-11-20 04:13:30,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:30,838 INFO L462 AbstractCegarLoop]: Abstraction has 3564 states and 4207 transitions. [2019-11-20 04:13:30,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:13:30,838 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 4207 transitions. [2019-11-20 04:13:30,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2019-11-20 04:13:30,845 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:30,846 INFO L410 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:13:31,053 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:13:31,054 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:31,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:31,054 INFO L82 PathProgramCache]: Analyzing trace with hash 148258701, now seen corresponding path program 1 times [2019-11-20 04:13:31,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:31,055 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084110676] [2019-11-20 04:13:31,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:31,376 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 246 proven. 4 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2019-11-20 04:13:31,376 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084110676] [2019-11-20 04:13:31,376 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804482464] [2019-11-20 04:13:31,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/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 [2019-11-20 04:13:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:31,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 04:13:31,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:13:31,613 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2019-11-20 04:13:31,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 04:13:31,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-11-20 04:13:31,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092687508] [2019-11-20 04:13:31,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:13:31,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:31,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:13:31,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:13:31,616 INFO L87 Difference]: Start difference. First operand 3564 states and 4207 transitions. Second operand 4 states. [2019-11-20 04:13:32,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:32,825 INFO L93 Difference]: Finished difference Result 7006 states and 8274 transitions. [2019-11-20 04:13:32,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:13:32,825 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 307 [2019-11-20 04:13:32,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:32,846 INFO L225 Difference]: With dead ends: 7006 [2019-11-20 04:13:32,846 INFO L226 Difference]: Without dead ends: 3564 [2019-11-20 04:13:32,852 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 306 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:13:32,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2019-11-20 04:13:32,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3386. [2019-11-20 04:13:32,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2019-11-20 04:13:32,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3645 transitions. [2019-11-20 04:13:32,926 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3645 transitions. Word has length 307 [2019-11-20 04:13:32,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:32,928 INFO L462 AbstractCegarLoop]: Abstraction has 3386 states and 3645 transitions. [2019-11-20 04:13:32,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:13:32,928 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3645 transitions. [2019-11-20 04:13:32,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2019-11-20 04:13:32,938 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:32,938 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, 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, 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] [2019-11-20 04:13:33,142 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:13:33,143 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:33,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:33,143 INFO L82 PathProgramCache]: Analyzing trace with hash -350804965, now seen corresponding path program 1 times [2019-11-20 04:13:33,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:33,144 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745971496] [2019-11-20 04:13:33,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:33,867 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 396 proven. 65 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2019-11-20 04:13:33,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745971496] [2019-11-20 04:13:33,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173747060] [2019-11-20 04:13:33,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/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 [2019-11-20 04:13:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:34,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 04:13:34,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:13:34,212 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2019-11-20 04:13:34,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 04:13:34,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-11-20 04:13:34,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098847543] [2019-11-20 04:13:34,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:13:34,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:34,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:13:34,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:13:34,217 INFO L87 Difference]: Start difference. First operand 3386 states and 3645 transitions. Second operand 3 states. [2019-11-20 04:13:35,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:35,014 INFO L93 Difference]: Finished difference Result 7482 states and 8108 transitions. [2019-11-20 04:13:35,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:13:35,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 402 [2019-11-20 04:13:35,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:35,035 INFO L225 Difference]: With dead ends: 7482 [2019-11-20 04:13:35,035 INFO L226 Difference]: Without dead ends: 4276 [2019-11-20 04:13:35,040 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 401 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:13:35,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2019-11-20 04:13:35,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2019-11-20 04:13:35,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2019-11-20 04:13:35,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4590 transitions. [2019-11-20 04:13:35,134 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4590 transitions. Word has length 402 [2019-11-20 04:13:35,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:35,135 INFO L462 AbstractCegarLoop]: Abstraction has 4276 states and 4590 transitions. [2019-11-20 04:13:35,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:13:35,135 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4590 transitions. [2019-11-20 04:13:35,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2019-11-20 04:13:35,146 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:35,147 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, 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, 3, 3, 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] [2019-11-20 04:13:35,351 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:13:35,351 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:35,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:35,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1425885231, now seen corresponding path program 1 times [2019-11-20 04:13:35,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:35,357 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872425677] [2019-11-20 04:13:35,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:36,109 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 404 proven. 65 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2019-11-20 04:13:36,109 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872425677] [2019-11-20 04:13:36,109 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76442873] [2019-11-20 04:13:36,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/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 [2019-11-20 04:13:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:36,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 04:13:36,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:13:36,483 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2019-11-20 04:13:36,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 04:13:36,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-11-20 04:13:36,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522898285] [2019-11-20 04:13:36,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:13:36,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:36,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:13:36,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:13:36,486 INFO L87 Difference]: Start difference. First operand 4276 states and 4590 transitions. Second operand 3 states. [2019-11-20 04:13:37,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:37,115 INFO L93 Difference]: Finished difference Result 9618 states and 10333 transitions. [2019-11-20 04:13:37,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:13:37,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 410 [2019-11-20 04:13:37,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:37,142 INFO L225 Difference]: With dead ends: 9618 [2019-11-20 04:13:37,143 INFO L226 Difference]: Without dead ends: 4810 [2019-11-20 04:13:37,148 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 409 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:13:37,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2019-11-20 04:13:37,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 3920. [2019-11-20 04:13:37,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2019-11-20 04:13:37,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4186 transitions. [2019-11-20 04:13:37,236 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4186 transitions. Word has length 410 [2019-11-20 04:13:37,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:37,238 INFO L462 AbstractCegarLoop]: Abstraction has 3920 states and 4186 transitions. [2019-11-20 04:13:37,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:13:37,238 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4186 transitions. [2019-11-20 04:13:37,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2019-11-20 04:13:37,248 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:37,248 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:13:37,461 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:13:37,461 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:37,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:37,462 INFO L82 PathProgramCache]: Analyzing trace with hash 147470516, now seen corresponding path program 1 times [2019-11-20 04:13:37,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:37,462 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49174098] [2019-11-20 04:13:37,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:38,173 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 415 proven. 65 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2019-11-20 04:13:38,173 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49174098] [2019-11-20 04:13:38,174 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627084163] [2019-11-20 04:13:38,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/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 [2019-11-20 04:13:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:38,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 04:13:38,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:13:38,475 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2019-11-20 04:13:38,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 04:13:38,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-11-20 04:13:38,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121538170] [2019-11-20 04:13:38,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:13:38,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:38,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:13:38,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:13:38,478 INFO L87 Difference]: Start difference. First operand 3920 states and 4186 transitions. Second operand 3 states. [2019-11-20 04:13:39,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:39,339 INFO L93 Difference]: Finished difference Result 8194 states and 8797 transitions. [2019-11-20 04:13:39,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:13:39,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 421 [2019-11-20 04:13:39,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:39,380 INFO L225 Difference]: With dead ends: 8194 [2019-11-20 04:13:39,381 INFO L226 Difference]: Without dead ends: 4632 [2019-11-20 04:13:39,386 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 420 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:13:39,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2019-11-20 04:13:39,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4098. [2019-11-20 04:13:39,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2019-11-20 04:13:39,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4379 transitions. [2019-11-20 04:13:39,473 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4379 transitions. Word has length 421 [2019-11-20 04:13:39,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:39,474 INFO L462 AbstractCegarLoop]: Abstraction has 4098 states and 4379 transitions. [2019-11-20 04:13:39,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:13:39,475 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4379 transitions. [2019-11-20 04:13:39,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2019-11-20 04:13:39,486 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:39,487 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, 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, 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] [2019-11-20 04:13:39,692 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:13:39,692 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:39,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:39,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1587624649, now seen corresponding path program 1 times [2019-11-20 04:13:39,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:39,693 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050956235] [2019-11-20 04:13:39,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:40,424 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 420 proven. 65 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2019-11-20 04:13:40,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050956235] [2019-11-20 04:13:40,425 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124707749] [2019-11-20 04:13:40,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:13:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:40,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:13:40,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:13:41,005 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 502 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2019-11-20 04:13:41,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 04:13:41,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2019-11-20 04:13:41,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362304921] [2019-11-20 04:13:41,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 04:13:41,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:41,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:13:41,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-11-20 04:13:41,008 INFO L87 Difference]: Start difference. First operand 4098 states and 4379 transitions. Second operand 7 states. [2019-11-20 04:13:42,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:42,047 INFO L93 Difference]: Finished difference Result 8066 states and 8627 transitions. [2019-11-20 04:13:42,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 04:13:42,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 435 [2019-11-20 04:13:42,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:42,062 INFO L225 Difference]: With dead ends: 8066 [2019-11-20 04:13:42,062 INFO L226 Difference]: Without dead ends: 4276 [2019-11-20 04:13:42,067 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 430 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-11-20 04:13:42,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2019-11-20 04:13:42,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2019-11-20 04:13:42,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2019-11-20 04:13:42,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4302 transitions. [2019-11-20 04:13:42,146 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4302 transitions. Word has length 435 [2019-11-20 04:13:42,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:42,146 INFO L462 AbstractCegarLoop]: Abstraction has 4098 states and 4302 transitions. [2019-11-20 04:13:42,147 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 04:13:42,147 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4302 transitions. [2019-11-20 04:13:42,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2019-11-20 04:13:42,175 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:42,175 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, 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, 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, 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, 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] [2019-11-20 04:13:42,379 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:13:42,380 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:42,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:42,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1311951587, now seen corresponding path program 1 times [2019-11-20 04:13:42,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:42,381 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035774169] [2019-11-20 04:13:42,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1687 backedges. 1219 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2019-11-20 04:13:43,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035774169] [2019-11-20 04:13:43,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:13:43,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 04:13:43,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096494982] [2019-11-20 04:13:43,143 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:13:43,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:43,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:13:43,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:13:43,148 INFO L87 Difference]: Start difference. First operand 4098 states and 4302 transitions. Second operand 4 states. [2019-11-20 04:13:44,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:44,055 INFO L93 Difference]: Finished difference Result 8906 states and 9413 transitions. [2019-11-20 04:13:44,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:13:44,055 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 765 [2019-11-20 04:13:44,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:44,065 INFO L225 Difference]: With dead ends: 8906 [2019-11-20 04:13:44,065 INFO L226 Difference]: Without dead ends: 4988 [2019-11-20 04:13:44,070 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:13:44,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2019-11-20 04:13:44,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2019-11-20 04:13:44,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2019-11-20 04:13:44,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5046 transitions. [2019-11-20 04:13:44,142 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5046 transitions. Word has length 765 [2019-11-20 04:13:44,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:44,143 INFO L462 AbstractCegarLoop]: Abstraction has 4810 states and 5046 transitions. [2019-11-20 04:13:44,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:13:44,143 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5046 transitions. [2019-11-20 04:13:44,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2019-11-20 04:13:44,154 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:44,155 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, 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, 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, 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, 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] [2019-11-20 04:13:44,156 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:44,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:44,156 INFO L82 PathProgramCache]: Analyzing trace with hash -2008502924, now seen corresponding path program 1 times [2019-11-20 04:13:44,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:44,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018591058] [2019-11-20 04:13:44,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:45,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 1001 proven. 4 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2019-11-20 04:13:45,618 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018591058] [2019-11-20 04:13:45,618 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265773608] [2019-11-20 04:13:45,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:13:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:45,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:13:45,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:13:45,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:13:46,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 982 proven. 23 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2019-11-20 04:13:46,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:13:46,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-11-20 04:13:46,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410438580] [2019-11-20 04:13:46,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:13:46,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:46,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:13:46,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:13:46,899 INFO L87 Difference]: Start difference. First operand 4810 states and 5046 transitions. Second operand 8 states. [2019-11-20 04:13:48,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:48,889 INFO L93 Difference]: Finished difference Result 9687 states and 10168 transitions. [2019-11-20 04:13:48,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 04:13:48,891 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 807 [2019-11-20 04:13:48,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:48,900 INFO L225 Difference]: With dead ends: 9687 [2019-11-20 04:13:48,901 INFO L226 Difference]: Without dead ends: 5235 [2019-11-20 04:13:48,906 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 804 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-11-20 04:13:48,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5235 states. [2019-11-20 04:13:48,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5235 to 4632. [2019-11-20 04:13:48,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2019-11-20 04:13:48,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4866 transitions. [2019-11-20 04:13:48,980 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4866 transitions. Word has length 807 [2019-11-20 04:13:48,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:48,980 INFO L462 AbstractCegarLoop]: Abstraction has 4632 states and 4866 transitions. [2019-11-20 04:13:48,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:13:48,981 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4866 transitions. [2019-11-20 04:13:48,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2019-11-20 04:13:48,993 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:48,995 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, 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, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2019-11-20 04:13:49,199 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:13:49,208 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:49,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:49,208 INFO L82 PathProgramCache]: Analyzing trace with hash -32320893, now seen corresponding path program 1 times [2019-11-20 04:13:49,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:49,208 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753403342] [2019-11-20 04:13:49,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1683 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2019-11-20 04:13:51,278 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753403342] [2019-11-20 04:13:51,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:13:51,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 04:13:51,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753936780] [2019-11-20 04:13:51,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 04:13:51,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:51,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:13:51,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:13:51,280 INFO L87 Difference]: Start difference. First operand 4632 states and 4866 transitions. Second operand 7 states. [2019-11-20 04:13:52,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:52,898 INFO L93 Difference]: Finished difference Result 9621 states and 10099 transitions. [2019-11-20 04:13:52,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:13:52,899 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 896 [2019-11-20 04:13:52,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:52,907 INFO L225 Difference]: With dead ends: 9621 [2019-11-20 04:13:52,907 INFO L226 Difference]: Without dead ends: 4991 [2019-11-20 04:13:52,912 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:13:52,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4991 states. [2019-11-20 04:13:52,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4991 to 4632. [2019-11-20 04:13:52,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2019-11-20 04:13:52,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4862 transitions. [2019-11-20 04:13:52,979 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4862 transitions. Word has length 896 [2019-11-20 04:13:52,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:52,980 INFO L462 AbstractCegarLoop]: Abstraction has 4632 states and 4862 transitions. [2019-11-20 04:13:52,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 04:13:52,980 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4862 transitions. [2019-11-20 04:13:52,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 974 [2019-11-20 04:13:52,993 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:52,994 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:13:52,994 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:52,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:52,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1437208854, now seen corresponding path program 1 times [2019-11-20 04:13:52,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:52,995 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404110344] [2019-11-20 04:13:52,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:54,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2929 backedges. 981 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2019-11-20 04:13:54,027 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404110344] [2019-11-20 04:13:54,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:13:54,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 04:13:54,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428410397] [2019-11-20 04:13:54,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:13:54,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:54,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:13:54,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:13:54,029 INFO L87 Difference]: Start difference. First operand 4632 states and 4862 transitions. Second operand 4 states. [2019-11-20 04:13:54,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:54,845 INFO L93 Difference]: Finished difference Result 9440 states and 9905 transitions. [2019-11-20 04:13:54,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:13:54,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 973 [2019-11-20 04:13:54,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:54,854 INFO L225 Difference]: With dead ends: 9440 [2019-11-20 04:13:54,854 INFO L226 Difference]: Without dead ends: 4632 [2019-11-20 04:13:54,859 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 [2019-11-20 04:13:54,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2019-11-20 04:13:54,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2019-11-20 04:13:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2019-11-20 04:13:54,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4631 transitions. [2019-11-20 04:13:54,922 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4631 transitions. Word has length 973 [2019-11-20 04:13:54,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:54,923 INFO L462 AbstractCegarLoop]: Abstraction has 4454 states and 4631 transitions. [2019-11-20 04:13:54,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:13:54,923 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4631 transitions. [2019-11-20 04:13:54,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1049 [2019-11-20 04:13:54,938 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:54,939 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:13:54,939 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:54,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:54,940 INFO L82 PathProgramCache]: Analyzing trace with hash 659097908, now seen corresponding path program 1 times [2019-11-20 04:13:54,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:54,940 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846972138] [2019-11-20 04:13:54,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3560 backedges. 1091 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2019-11-20 04:13:56,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846972138] [2019-11-20 04:13:56,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:13:56,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 04:13:56,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515162294] [2019-11-20 04:13:56,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:13:56,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:56,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:13:56,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:13:56,364 INFO L87 Difference]: Start difference. First operand 4454 states and 4631 transitions. Second operand 4 states. [2019-11-20 04:13:57,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:57,302 INFO L93 Difference]: Finished difference Result 9618 states and 10005 transitions. [2019-11-20 04:13:57,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:13:57,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1048 [2019-11-20 04:13:57,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:57,311 INFO L225 Difference]: With dead ends: 9618 [2019-11-20 04:13:57,311 INFO L226 Difference]: Without dead ends: 4810 [2019-11-20 04:13:57,316 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 [2019-11-20 04:13:57,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2019-11-20 04:13:57,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 3742. [2019-11-20 04:13:57,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2019-11-20 04:13:57,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3834 transitions. [2019-11-20 04:13:57,374 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3834 transitions. Word has length 1048 [2019-11-20 04:13:57,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:57,375 INFO L462 AbstractCegarLoop]: Abstraction has 3742 states and 3834 transitions. [2019-11-20 04:13:57,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:13:57,375 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3834 transitions. [2019-11-20 04:13:57,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1097 [2019-11-20 04:13:57,390 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:13:57,391 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 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] [2019-11-20 04:13:57,391 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:13:57,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:13:57,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1358554948, now seen corresponding path program 1 times [2019-11-20 04:13:57,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:13:57,392 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467495342] [2019-11-20 04:13:57,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:13:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:13:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 1131 proven. 0 refuted. 0 times theorem prover too weak. 2666 trivial. 0 not checked. [2019-11-20 04:13:58,819 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467495342] [2019-11-20 04:13:58,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:13:58,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 04:13:58,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644373558] [2019-11-20 04:13:58,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:13:58,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:13:58,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:13:58,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:13:58,822 INFO L87 Difference]: Start difference. First operand 3742 states and 3834 transitions. Second operand 5 states. [2019-11-20 04:13:59,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:13:59,886 INFO L93 Difference]: Finished difference Result 8548 states and 8760 transitions. [2019-11-20 04:13:59,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:13:59,886 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1096 [2019-11-20 04:13:59,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:13:59,887 INFO L225 Difference]: With dead ends: 8548 [2019-11-20 04:13:59,887 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 04:13:59,892 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:13:59,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 04:13:59,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 04:13:59,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 04:13:59,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 04:13:59,893 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1096 [2019-11-20 04:13:59,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:13:59,893 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:13:59,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:13:59,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:13:59,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 04:13:59,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 04:14:00,132 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 150 [2019-11-20 04:14:00,338 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 150 [2019-11-20 04:14:01,163 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 44 [2019-11-20 04:14:01,813 WARN L191 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 44 [2019-11-20 04:14:01,816 INFO L444 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2019-11-20 04:14:01,816 INFO L444 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2019-11-20 04:14:01,816 INFO L444 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,817 INFO L444 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,817 INFO L444 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,817 INFO L444 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2019-11-20 04:14:01,817 INFO L444 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2019-11-20 04:14:01,817 INFO L444 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2019-11-20 04:14:01,817 INFO L444 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2019-11-20 04:14:01,817 INFO L444 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2019-11-20 04:14:01,817 INFO L444 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2019-11-20 04:14:01,817 INFO L444 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2019-11-20 04:14:01,817 INFO L444 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2019-11-20 04:14:01,817 INFO L444 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,817 INFO L444 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,818 INFO L444 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,818 INFO L444 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2019-11-20 04:14:01,818 INFO L444 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2019-11-20 04:14:01,818 INFO L444 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2019-11-20 04:14:01,818 INFO L444 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2019-11-20 04:14:01,818 INFO L444 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2019-11-20 04:14:01,818 INFO L444 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2019-11-20 04:14:01,818 INFO L444 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2019-11-20 04:14:01,819 INFO L444 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2019-11-20 04:14:01,819 INFO L444 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,819 INFO L444 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,819 INFO L444 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,819 INFO L444 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2019-11-20 04:14:01,819 INFO L444 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2019-11-20 04:14:01,819 INFO L444 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2019-11-20 04:14:01,819 INFO L444 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-11-20 04:14:01,819 INFO L444 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2019-11-20 04:14:01,819 INFO L444 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2019-11-20 04:14:01,819 INFO L444 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2019-11-20 04:14:01,819 INFO L444 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2019-11-20 04:14:01,820 INFO L444 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2019-11-20 04:14:01,820 INFO L444 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,820 INFO L444 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,820 INFO L444 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,820 INFO L444 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2019-11-20 04:14:01,820 INFO L444 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2019-11-20 04:14:01,820 INFO L444 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2019-11-20 04:14:01,820 INFO L444 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2019-11-20 04:14:01,820 INFO L444 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2019-11-20 04:14:01,820 INFO L444 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2019-11-20 04:14:01,820 INFO L444 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2019-11-20 04:14:01,820 INFO L444 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,820 INFO L444 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,820 INFO L444 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,821 INFO L444 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2019-11-20 04:14:01,821 INFO L444 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2019-11-20 04:14:01,821 INFO L444 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2019-11-20 04:14:01,821 INFO L444 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2019-11-20 04:14:01,821 INFO L444 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2019-11-20 04:14:01,821 INFO L444 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2019-11-20 04:14:01,825 INFO L444 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2019-11-20 04:14:01,825 INFO L444 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2019-11-20 04:14:01,825 INFO L444 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2019-11-20 04:14:01,825 INFO L444 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,826 INFO L444 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,826 INFO L444 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,826 INFO L444 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2019-11-20 04:14:01,826 INFO L444 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2019-11-20 04:14:01,826 INFO L444 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2019-11-20 04:14:01,826 INFO L444 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2019-11-20 04:14:01,826 INFO L444 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2019-11-20 04:14:01,826 INFO L444 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2019-11-20 04:14:01,826 INFO L444 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2019-11-20 04:14:01,826 INFO L444 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2019-11-20 04:14:01,826 INFO L444 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,826 INFO L444 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,826 INFO L444 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,827 INFO L444 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2019-11-20 04:14:01,827 INFO L444 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2019-11-20 04:14:01,827 INFO L444 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2019-11-20 04:14:01,827 INFO L444 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2019-11-20 04:14:01,827 INFO L444 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2019-11-20 04:14:01,827 INFO L444 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2019-11-20 04:14:01,827 INFO L444 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2019-11-20 04:14:01,827 INFO L444 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2019-11-20 04:14:01,827 INFO L444 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,827 INFO L444 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,827 INFO L444 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,827 INFO L444 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2019-11-20 04:14:01,827 INFO L444 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2019-11-20 04:14:01,828 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 04:14:01,828 INFO L444 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2019-11-20 04:14:01,828 INFO L444 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2019-11-20 04:14:01,828 INFO L444 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2019-11-20 04:14:01,828 INFO L444 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2019-11-20 04:14:01,828 INFO L444 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2019-11-20 04:14:01,828 INFO L444 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2019-11-20 04:14:01,828 INFO L444 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,828 INFO L444 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,828 INFO L444 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,828 INFO L444 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2019-11-20 04:14:01,828 INFO L444 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2019-11-20 04:14:01,828 INFO L444 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2019-11-20 04:14:01,829 INFO L444 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2019-11-20 04:14:01,829 INFO L444 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2019-11-20 04:14:01,829 INFO L444 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2019-11-20 04:14:01,829 INFO L444 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2019-11-20 04:14:01,829 INFO L444 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2019-11-20 04:14:01,829 INFO L444 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,829 INFO L444 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,829 INFO L444 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,829 INFO L444 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2019-11-20 04:14:01,829 INFO L444 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2019-11-20 04:14:01,829 INFO L444 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2019-11-20 04:14:01,829 INFO L444 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2019-11-20 04:14:01,829 INFO L444 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2019-11-20 04:14:01,829 INFO L444 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2019-11-20 04:14:01,830 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 04:14:01,830 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 115) no Hoare annotation was computed. [2019-11-20 04:14:01,830 INFO L444 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2019-11-20 04:14:01,830 INFO L444 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2019-11-20 04:14:01,830 INFO L444 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,830 INFO L444 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,830 INFO L444 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,830 INFO L444 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2019-11-20 04:14:01,831 INFO L444 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2019-11-20 04:14:01,831 INFO L444 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2019-11-20 04:14:01,831 INFO L444 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2019-11-20 04:14:01,831 INFO L444 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2019-11-20 04:14:01,831 INFO L444 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2019-11-20 04:14:01,831 INFO L444 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2019-11-20 04:14:01,831 INFO L444 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2019-11-20 04:14:01,831 INFO L444 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,831 INFO L444 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,831 INFO L444 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,831 INFO L444 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2019-11-20 04:14:01,831 INFO L444 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2019-11-20 04:14:01,831 INFO L444 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2019-11-20 04:14:01,832 INFO L444 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2019-11-20 04:14:01,832 INFO L444 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2019-11-20 04:14:01,832 INFO L444 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2019-11-20 04:14:01,832 INFO L444 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2019-11-20 04:14:01,832 INFO L444 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2019-11-20 04:14:01,832 INFO L444 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,832 INFO L444 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,832 INFO L444 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2019-11-20 04:14:01,833 INFO L444 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2019-11-20 04:14:01,833 INFO L444 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2019-11-20 04:14:01,833 INFO L444 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2019-11-20 04:14:01,833 INFO L444 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2019-11-20 04:14:01,833 INFO L444 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2019-11-20 04:14:01,833 INFO L444 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2019-11-20 04:14:01,833 INFO L444 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2019-11-20 04:14:01,833 INFO L444 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,833 INFO L444 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,833 INFO L444 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2019-11-20 04:14:01,833 INFO L444 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2019-11-20 04:14:01,833 INFO L444 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2019-11-20 04:14:01,833 INFO L444 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2019-11-20 04:14:01,834 INFO L444 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2019-11-20 04:14:01,834 INFO L444 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2019-11-20 04:14:01,834 INFO L444 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,834 INFO L444 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,834 INFO L440 ceAbstractionStarter]: At program point L871(lines 20 872) the Hoare annotation is: (let ((.cse1 (< 80 ~a12~0)) (.cse3 (<= 8 ~a21~0)) (.cse4 (<= ~a15~0 8)) (.cse5 (<= (+ ~a12~0 49) 0)) (.cse6 (<= ~a21~0 6)) (.cse0 (= ~a24~0 1)) (.cse2 (<= ~a12~0 11))) (or (and (<= 9 ~a15~0) .cse0 (= ~a21~0 7) .cse1) (and .cse2 (= 8 ~a15~0) .cse0) (and .cse0 .cse3 .cse1) (and (= 8 ~a21~0) .cse0) (and .cse0 (and .cse3 .cse4)) (and .cse0 .cse4 .cse5) (and .cse0 .cse6 (<= ~a12~0 95442)) (and .cse0 .cse4 .cse6) (let ((.cse7 (<= ~a15~0 6))) (or (and .cse7 .cse5 .cse6) (and .cse7 .cse0))) (and (<= 10 ~a21~0) .cse0 .cse2))) [2019-11-20 04:14:01,834 INFO L444 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2019-11-20 04:14:01,835 INFO L444 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2019-11-20 04:14:01,835 INFO L444 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2019-11-20 04:14:01,835 INFO L444 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2019-11-20 04:14:01,835 INFO L444 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2019-11-20 04:14:01,835 INFO L444 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2019-11-20 04:14:01,835 INFO L444 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2019-11-20 04:14:01,836 INFO L444 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2019-11-20 04:14:01,836 INFO L444 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,836 INFO L444 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,836 INFO L447 ceAbstractionStarter]: At program point L874(lines 874 890) the Hoare annotation is: true [2019-11-20 04:14:01,836 INFO L444 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2019-11-20 04:14:01,836 INFO L444 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2019-11-20 04:14:01,836 INFO L444 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2019-11-20 04:14:01,836 INFO L444 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2019-11-20 04:14:01,836 INFO L444 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2019-11-20 04:14:01,836 INFO L444 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2019-11-20 04:14:01,836 INFO L444 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2019-11-20 04:14:01,836 INFO L444 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,836 INFO L444 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,837 INFO L444 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2019-11-20 04:14:01,837 INFO L444 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2019-11-20 04:14:01,837 INFO L444 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2019-11-20 04:14:01,837 INFO L444 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2019-11-20 04:14:01,837 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 04:14:01,837 INFO L444 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2019-11-20 04:14:01,837 INFO L444 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2019-11-20 04:14:01,837 INFO L444 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,837 INFO L444 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,837 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-11-20 04:14:01,837 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,837 INFO L444 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2019-11-20 04:14:01,838 INFO L440 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse1 (< 80 ~a12~0)) (.cse3 (<= 8 ~a21~0)) (.cse4 (<= ~a15~0 8)) (.cse5 (<= (+ ~a12~0 49) 0)) (.cse6 (<= ~a21~0 6)) (.cse0 (= ~a24~0 1)) (.cse2 (<= ~a12~0 11))) (or (and (<= 9 ~a15~0) .cse0 (= ~a21~0 7) .cse1) (and .cse2 (= 8 ~a15~0) .cse0) (and .cse0 .cse3 .cse1) (and (= 8 ~a21~0) .cse0) (and .cse0 (and .cse3 .cse4)) (and .cse0 .cse4 .cse5) (and .cse0 .cse6 (<= ~a12~0 95442)) (and .cse0 .cse4 .cse6) (let ((.cse7 (<= ~a15~0 6))) (or (and .cse7 .cse5 .cse6) (and .cse7 .cse0))) (and (<= 10 ~a21~0) .cse0 .cse2))) [2019-11-20 04:14:01,838 INFO L444 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2019-11-20 04:14:01,838 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2019-11-20 04:14:01,838 INFO L444 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2019-11-20 04:14:01,838 INFO L444 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2019-11-20 04:14:01,838 INFO L444 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-20 04:14:01,838 INFO L444 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2019-11-20 04:14:01,838 INFO L444 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2019-11-20 04:14:01,838 INFO L444 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2019-11-20 04:14:01,838 INFO L444 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2019-11-20 04:14:01,838 INFO L444 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,838 INFO L444 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,839 INFO L444 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,839 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2019-11-20 04:14:01,839 INFO L444 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2019-11-20 04:14:01,839 INFO L444 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2019-11-20 04:14:01,839 INFO L444 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2019-11-20 04:14:01,839 INFO L444 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2019-11-20 04:14:01,839 INFO L444 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2019-11-20 04:14:01,839 INFO L444 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2019-11-20 04:14:01,840 INFO L444 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2019-11-20 04:14:01,840 INFO L444 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2019-11-20 04:14:01,840 INFO L444 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,840 INFO L444 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,840 INFO L444 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,840 INFO L444 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2019-11-20 04:14:01,840 INFO L444 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2019-11-20 04:14:01,840 INFO L444 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2019-11-20 04:14:01,840 INFO L444 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2019-11-20 04:14:01,840 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 04:14:01,840 INFO L444 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-11-20 04:14:01,840 INFO L444 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2019-11-20 04:14:01,840 INFO L444 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2019-11-20 04:14:01,841 INFO L444 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2019-11-20 04:14:01,841 INFO L444 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,841 INFO L444 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,841 INFO L444 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,841 INFO L444 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2019-11-20 04:14:01,841 INFO L444 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2019-11-20 04:14:01,841 INFO L444 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2019-11-20 04:14:01,841 INFO L444 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2019-11-20 04:14:01,841 INFO L444 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2019-11-20 04:14:01,841 INFO L444 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2019-11-20 04:14:01,841 INFO L444 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2019-11-20 04:14:01,841 INFO L444 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2019-11-20 04:14:01,841 INFO L444 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2019-11-20 04:14:01,841 INFO L444 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,842 INFO L444 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,842 INFO L444 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 04:14:01,842 INFO L444 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2019-11-20 04:14:01,842 INFO L444 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2019-11-20 04:14:01,842 INFO L444 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2019-11-20 04:14:01,842 INFO L444 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2019-11-20 04:14:01,842 INFO L444 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2019-11-20 04:14:01,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:14:01 BoogieIcfgContainer [2019-11-20 04:14:01,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:14:01,869 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:14:01,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:14:01,870 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:14:01,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:13:19" (3/4) ... [2019-11-20 04:14:01,874 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 04:14:01,917 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 04:14:01,920 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 04:14:02,126 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_60426061-1705-491d-9dcc-0e7c25918944/bin/uautomizer/witness.graphml [2019-11-20 04:14:02,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:14:02,128 INFO L168 Benchmark]: Toolchain (without parser) took 45779.38 ms. Allocated memory was 1.0 GB in the beginning and 3.1 GB in the end (delta: 2.1 GB). Free memory was 946.1 MB in the beginning and 1.4 GB in the end (delta: -423.1 MB). Peak memory consumption was 1.7 GB. Max. memory is 11.5 GB. [2019-11-20 04:14:02,128 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:14:02,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 916.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -125.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:14:02,129 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.77 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: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:14:02,130 INFO L168 Benchmark]: Boogie Preprocessor took 125.59 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:14:02,130 INFO L168 Benchmark]: RCFGBuilder took 1819.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 922.3 MB in the end (delta: 128.3 MB). Peak memory consumption was 128.3 MB. Max. memory is 11.5 GB. [2019-11-20 04:14:02,130 INFO L168 Benchmark]: TraceAbstraction took 42515.77 ms. Allocated memory was 1.1 GB in the beginning and 3.1 GB in the end (delta: 2.0 GB). Free memory was 922.3 MB in the beginning and 1.4 GB in the end (delta: -507.3 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2019-11-20 04:14:02,131 INFO L168 Benchmark]: Witness Printer took 257.09 ms. Allocated memory is still 3.1 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:14:02,139 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 916.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -125.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 140.77 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: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 125.59 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1819.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 922.3 MB in the end (delta: 128.3 MB). Peak memory consumption was 128.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 42515.77 ms. Allocated memory was 1.1 GB in the beginning and 3.1 GB in the end (delta: 2.0 GB). Free memory was 922.3 MB in the beginning and 1.4 GB in the end (delta: -507.3 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. * Witness Printer took 257.09 ms. Allocated memory is still 3.1 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 115]: 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: (((((((((((9 <= a15 && a24 == 1) && a21 == 7) && 80 < a12) || ((a12 <= 11 && 8 == a15) && a24 == 1)) || ((a24 == 1 && 8 <= a21) && 80 < a12)) || (8 == a21 && a24 == 1)) || (a24 == 1 && 8 <= a21 && a15 <= 8)) || ((a24 == 1 && a15 <= 8) && a12 + 49 <= 0)) || ((a24 == 1 && a21 <= 6) && a12 <= 95442)) || ((a24 == 1 && a15 <= 8) && a21 <= 6)) || ((a15 <= 6 && a12 + 49 <= 0) && a21 <= 6) || (a15 <= 6 && a24 == 1)) || ((10 <= a21 && a24 == 1) && a12 <= 11) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((((((((((9 <= a15 && a24 == 1) && a21 == 7) && 80 < a12) || ((a12 <= 11 && 8 == a15) && a24 == 1)) || ((a24 == 1 && 8 <= a21) && 80 < a12)) || (8 == a21 && a24 == 1)) || (a24 == 1 && 8 <= a21 && a15 <= 8)) || ((a24 == 1 && a15 <= 8) && a12 + 49 <= 0)) || ((a24 == 1 && a21 <= 6) && a12 <= 95442)) || ((a24 == 1 && a15 <= 8) && a21 <= 6)) || ((a15 <= 6 && a12 + 49 <= 0) && a21 <= 6) || (a15 <= 6 && a24 == 1)) || ((10 <= a21 && a24 == 1) && a12 <= 11) - 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: 42.4s, OverallIterations: 16, TraceHistogramMax: 10, AutomataDifference: 20.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, HoareTripleCheckerStatistics: 1854 SDtfs, 4577 SDslu, 191 SDs, 0 SdLazy, 13817 SolverSat, 1483 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3383 GetRequests, 3299 SyntacticMatches, 10 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4810occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 4700 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 86 NumberOfFragments, 229 HoareAnnotationTreeSize, 3 FomulaSimplifications, 23444 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 10262 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 11773 NumberOfCodeBlocks, 11773 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 11749 ConstructedInterpolants, 0 QuantifiedInterpolants, 22940721 SizeOfPredicates, 17 NumberOfNonLiveVariables, 4277 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 24 InterpolantComputations, 15 PerfectInterpolantSequences, 24467/24766 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...