./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label08.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_be851ceb-29bf-42d1-86fa-2dcefddd45dd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_be851ceb-29bf-42d1-86fa-2dcefddd45dd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_be851ceb-29bf-42d1-86fa-2dcefddd45dd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_be851ceb-29bf-42d1-86fa-2dcefddd45dd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label08.c -s /tmp/vcloud-vcloud-master/worker/run_dir_be851ceb-29bf-42d1-86fa-2dcefddd45dd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_be851ceb-29bf-42d1-86fa-2dcefddd45dd/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 16d1e07abe3d8baa61b9a8d494202a7664f873bb .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:50:43,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:50:43,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:50:43,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:50:43,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:50:43,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:50:43,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:50:43,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:50:43,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:50:43,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:50:43,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:50:43,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:50:43,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:50:43,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:50:43,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:50:43,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:50:43,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:50:43,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:50:43,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:50:43,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:50:43,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:50:43,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:50:43,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:50:43,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:50:43,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:50:43,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:50:43,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:50:43,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:50:43,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:50:43,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:50:43,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:50:43,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:50:43,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:50:43,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:50:43,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:50:43,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:50:43,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:50:43,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:50:43,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:50:43,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:50:43,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:50:43,132 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_be851ceb-29bf-42d1-86fa-2dcefddd45dd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 02:50:43,146 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:50:43,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:50:43,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:50:43,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:50:43,148 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:50:43,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:50:43,149 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:50:43,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:50:43,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:50:43,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:50:43,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 02:50:43,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 02:50:43,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 02:50:43,150 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:50:43,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:50:43,151 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:50:43,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 02:50:43,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:50:43,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:50:43,152 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 02:50:43,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 02:50:43,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:50:43,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:50:43,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 02:50:43,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 02:50:43,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:50:43,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 02:50:43,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 02:50:43,154 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_be851ceb-29bf-42d1-86fa-2dcefddd45dd/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 -> 16d1e07abe3d8baa61b9a8d494202a7664f873bb [2019-11-20 02:50:43,307 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:50:43,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:50:43,326 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:50:43,328 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:50:43,328 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:50:43,329 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_be851ceb-29bf-42d1-86fa-2dcefddd45dd/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label08.c [2019-11-20 02:50:43,399 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be851ceb-29bf-42d1-86fa-2dcefddd45dd/bin/uautomizer/data/d2a18a017/f262f459cf034dd3a1e896dd7709bb5f/FLAGd7a93aa06 [2019-11-20 02:50:43,863 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:50:43,864 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_be851ceb-29bf-42d1-86fa-2dcefddd45dd/sv-benchmarks/c/eca-rers2012/Problem01_label08.c [2019-11-20 02:50:43,875 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be851ceb-29bf-42d1-86fa-2dcefddd45dd/bin/uautomizer/data/d2a18a017/f262f459cf034dd3a1e896dd7709bb5f/FLAGd7a93aa06 [2019-11-20 02:50:44,145 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_be851ceb-29bf-42d1-86fa-2dcefddd45dd/bin/uautomizer/data/d2a18a017/f262f459cf034dd3a1e896dd7709bb5f [2019-11-20 02:50:44,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:50:44,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:50:44,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:50:44,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:50:44,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:50:44,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:50:44" (1/1) ... [2019-11-20 02:50:44,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b08f34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:50:44, skipping insertion in model container [2019-11-20 02:50:44,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:50:44" (1/1) ... [2019-11-20 02:50:44,172 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:50:44,231 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:50:44,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:50:44,713 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:50:44,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:50:44,893 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:50:44,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:50:44 WrapperNode [2019-11-20 02:50:44,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:50:44,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:50:44,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:50:44,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:50:44,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:50:44" (1/1) ... [2019-11-20 02:50:44,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:50:44" (1/1) ... [2019-11-20 02:50:44,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:50:44,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:50:44,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:50:44,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:50:44,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:50:44" (1/1) ... [2019-11-20 02:50:44,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:50:44" (1/1) ... [2019-11-20 02:50:44,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:50:44" (1/1) ... [2019-11-20 02:50:45,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:50:44" (1/1) ... [2019-11-20 02:50:45,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:50:44" (1/1) ... [2019-11-20 02:50:45,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:50:44" (1/1) ... [2019-11-20 02:50:45,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:50:44" (1/1) ... [2019-11-20 02:50:45,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:50:45,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:50:45,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:50:45,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:50:45,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:50:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be851ceb-29bf-42d1-86fa-2dcefddd45dd/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 02:50:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:50:45,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:50:46,659 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:50:46,659 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 02:50:46,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:50:46 BoogieIcfgContainer [2019-11-20 02:50:46,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:50:46,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 02:50:46,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 02:50:46,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 02:50:46,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:50:44" (1/3) ... [2019-11-20 02:50:46,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d6b308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:50:46, skipping insertion in model container [2019-11-20 02:50:46,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:50:44" (2/3) ... [2019-11-20 02:50:46,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d6b308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:50:46, skipping insertion in model container [2019-11-20 02:50:46,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:50:46" (3/3) ... [2019-11-20 02:50:46,671 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label08.c [2019-11-20 02:50:46,681 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 02:50:46,689 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 02:50:46,701 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 02:50:46,740 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 02:50:46,740 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 02:50:46,740 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 02:50:46,740 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:50:46,740 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:50:46,740 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 02:50:46,741 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:50:46,741 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 02:50:46,768 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-11-20 02:50:46,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-11-20 02:50:46,792 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:50:46,794 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:50:46,794 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:50:46,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:50:46,802 INFO L82 PathProgramCache]: Analyzing trace with hash -439667690, now seen corresponding path program 1 times [2019-11-20 02:50:46,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:50:46,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579915094] [2019-11-20 02:50:46,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:50:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:50:47,290 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 02:50:47,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579915094] [2019-11-20 02:50:47,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:50:47,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:50:47,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490684100] [2019-11-20 02:50:47,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:50:47,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:50:47,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:50:47,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:50:47,320 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2019-11-20 02:50:48,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:50:48,330 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2019-11-20 02:50:48,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:50:48,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2019-11-20 02:50:48,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:50:48,359 INFO L225 Difference]: With dead ends: 528 [2019-11-20 02:50:48,361 INFO L226 Difference]: Without dead ends: 266 [2019-11-20 02:50:48,371 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:50:48,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-11-20 02:50:48,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2019-11-20 02:50:48,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-11-20 02:50:48,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 374 transitions. [2019-11-20 02:50:48,434 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 374 transitions. Word has length 113 [2019-11-20 02:50:48,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:50:48,435 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 374 transitions. [2019-11-20 02:50:48,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:50:48,436 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 374 transitions. [2019-11-20 02:50:48,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-11-20 02:50:48,439 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:50:48,439 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:50:48,440 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:50:48,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:50:48,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1141355742, now seen corresponding path program 1 times [2019-11-20 02:50:48,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:50:48,441 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593464145] [2019-11-20 02:50:48,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:50:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:50:48,654 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 02:50:48,654 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593464145] [2019-11-20 02:50:48,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:50:48,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 02:50:48,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291929693] [2019-11-20 02:50:48,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 02:50:48,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:50:48,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 02:50:48,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:50:48,659 INFO L87 Difference]: Start difference. First operand 266 states and 374 transitions. Second operand 4 states. [2019-11-20 02:50:49,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:50:49,687 INFO L93 Difference]: Finished difference Result 1054 states and 1488 transitions. [2019-11-20 02:50:49,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 02:50:49,689 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2019-11-20 02:50:49,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:50:49,697 INFO L225 Difference]: With dead ends: 1054 [2019-11-20 02:50:49,697 INFO L226 Difference]: Without dead ends: 790 [2019-11-20 02:50:49,699 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:50:49,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-11-20 02:50:49,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 528. [2019-11-20 02:50:49,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2019-11-20 02:50:49,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 708 transitions. [2019-11-20 02:50:49,734 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 708 transitions. Word has length 117 [2019-11-20 02:50:49,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:50:49,735 INFO L462 AbstractCegarLoop]: Abstraction has 528 states and 708 transitions. [2019-11-20 02:50:49,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 02:50:49,735 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 708 transitions. [2019-11-20 02:50:49,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-11-20 02:50:49,740 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:50:49,741 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:50:49,741 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:50:49,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:50:49,741 INFO L82 PathProgramCache]: Analyzing trace with hash -935067032, now seen corresponding path program 1 times [2019-11-20 02:50:49,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:50:49,742 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517276203] [2019-11-20 02:50:49,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:50:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:50:49,826 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 02:50:49,827 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517276203] [2019-11-20 02:50:49,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:50:49,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:50:49,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456351699] [2019-11-20 02:50:49,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:50:49,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:50:49,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:50:49,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:50:49,829 INFO L87 Difference]: Start difference. First operand 528 states and 708 transitions. Second operand 3 states. [2019-11-20 02:50:50,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:50:50,480 INFO L93 Difference]: Finished difference Result 1316 states and 1785 transitions. [2019-11-20 02:50:50,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:50:50,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-11-20 02:50:50,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:50:50,486 INFO L225 Difference]: With dead ends: 1316 [2019-11-20 02:50:50,487 INFO L226 Difference]: Without dead ends: 790 [2019-11-20 02:50:50,488 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:50:50,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-11-20 02:50:50,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 659. [2019-11-20 02:50:50,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2019-11-20 02:50:50,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 888 transitions. [2019-11-20 02:50:50,516 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 888 transitions. Word has length 147 [2019-11-20 02:50:50,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:50:50,517 INFO L462 AbstractCegarLoop]: Abstraction has 659 states and 888 transitions. [2019-11-20 02:50:50,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:50:50,517 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 888 transitions. [2019-11-20 02:50:50,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-11-20 02:50:50,521 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:50:50,521 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:50,521 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:50:50,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:50:50,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1615405790, now seen corresponding path program 1 times [2019-11-20 02:50:50,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:50:50,523 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082054088] [2019-11-20 02:50:50,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:50:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:50:50,695 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-11-20 02:50:50,696 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082054088] [2019-11-20 02:50:50,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:50:50,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 02:50:50,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158808859] [2019-11-20 02:50:50,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 02:50:50,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:50:50,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 02:50:50,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:50:50,698 INFO L87 Difference]: Start difference. First operand 659 states and 888 transitions. Second operand 4 states. [2019-11-20 02:50:51,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:50:51,461 INFO L93 Difference]: Finished difference Result 1449 states and 1931 transitions. [2019-11-20 02:50:51,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 02:50:51,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 151 [2019-11-20 02:50:51,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:50:51,467 INFO L225 Difference]: With dead ends: 1449 [2019-11-20 02:50:51,468 INFO L226 Difference]: Without dead ends: 792 [2019-11-20 02:50:51,469 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 02:50:51,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2019-11-20 02:50:51,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 790. [2019-11-20 02:50:51,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-11-20 02:50:51,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1025 transitions. [2019-11-20 02:50:51,497 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1025 transitions. Word has length 151 [2019-11-20 02:50:51,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:50:51,498 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1025 transitions. [2019-11-20 02:50:51,498 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 02:50:51,498 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1025 transitions. [2019-11-20 02:50:51,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-11-20 02:50:51,501 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:50:51,502 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:51,502 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:50:51,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:50:51,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1243165274, now seen corresponding path program 1 times [2019-11-20 02:50:51,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:50:51,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368027243] [2019-11-20 02:50:51,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:50:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:50:51,602 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-20 02:50:51,602 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368027243] [2019-11-20 02:50:51,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:50:51,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:50:51,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173494342] [2019-11-20 02:50:51,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:50:51,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:50:51,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:50:51,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:50:51,605 INFO L87 Difference]: Start difference. First operand 790 states and 1025 transitions. Second operand 3 states. [2019-11-20 02:50:52,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:50:52,210 INFO L93 Difference]: Finished difference Result 1709 states and 2245 transitions. [2019-11-20 02:50:52,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:50:52,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-11-20 02:50:52,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:50:52,218 INFO L225 Difference]: With dead ends: 1709 [2019-11-20 02:50:52,218 INFO L226 Difference]: Without dead ends: 1052 [2019-11-20 02:50:52,221 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:50:52,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2019-11-20 02:50:52,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2019-11-20 02:50:52,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2019-11-20 02:50:52,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1323 transitions. [2019-11-20 02:50:52,252 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1323 transitions. Word has length 155 [2019-11-20 02:50:52,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:50:52,253 INFO L462 AbstractCegarLoop]: Abstraction has 1052 states and 1323 transitions. [2019-11-20 02:50:52,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:50:52,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1323 transitions. [2019-11-20 02:50:52,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-11-20 02:50:52,256 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:50:52,257 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:52,257 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:50:52,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:50:52,258 INFO L82 PathProgramCache]: Analyzing trace with hash 626276872, now seen corresponding path program 1 times [2019-11-20 02:50:52,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:50:52,258 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620773125] [2019-11-20 02:50:52,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:50:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:50:52,325 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-20 02:50:52,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620773125] [2019-11-20 02:50:52,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:50:52,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 02:50:52,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519333193] [2019-11-20 02:50:52,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 02:50:52,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:50:52,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 02:50:52,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:50:52,328 INFO L87 Difference]: Start difference. First operand 1052 states and 1323 transitions. Second operand 4 states. [2019-11-20 02:50:53,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:50:53,149 INFO L93 Difference]: Finished difference Result 3150 states and 3974 transitions. [2019-11-20 02:50:53,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 02:50:53,149 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2019-11-20 02:50:53,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:50:53,163 INFO L225 Difference]: With dead ends: 3150 [2019-11-20 02:50:53,163 INFO L226 Difference]: Without dead ends: 2231 [2019-11-20 02:50:53,165 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 02:50:53,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2019-11-20 02:50:53,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1576. [2019-11-20 02:50:53,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2019-11-20 02:50:53,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1943 transitions. [2019-11-20 02:50:53,213 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1943 transitions. Word has length 164 [2019-11-20 02:50:53,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:50:53,213 INFO L462 AbstractCegarLoop]: Abstraction has 1576 states and 1943 transitions. [2019-11-20 02:50:53,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 02:50:53,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1943 transitions. [2019-11-20 02:50:53,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-11-20 02:50:53,219 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:50:53,219 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:53,219 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:50:53,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:50:53,220 INFO L82 PathProgramCache]: Analyzing trace with hash 375824388, now seen corresponding path program 1 times [2019-11-20 02:50:53,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:50:53,221 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398781002] [2019-11-20 02:50:53,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:50:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:50:53,340 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-11-20 02:50:53,340 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398781002] [2019-11-20 02:50:53,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:50:53,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 02:50:53,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485665231] [2019-11-20 02:50:53,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 02:50:53,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:50:53,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 02:50:53,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 02:50:53,351 INFO L87 Difference]: Start difference. First operand 1576 states and 1943 transitions. Second operand 5 states. [2019-11-20 02:50:54,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:50:54,299 INFO L93 Difference]: Finished difference Result 3543 states and 4355 transitions. [2019-11-20 02:50:54,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 02:50:54,299 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 188 [2019-11-20 02:50:54,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:50:54,309 INFO L225 Difference]: With dead ends: 3543 [2019-11-20 02:50:54,310 INFO L226 Difference]: Without dead ends: 2100 [2019-11-20 02:50:54,312 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 02:50:54,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2019-11-20 02:50:54,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2019-11-20 02:50:54,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-11-20 02:50:54,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2216 transitions. [2019-11-20 02:50:54,355 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2216 transitions. Word has length 188 [2019-11-20 02:50:54,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:50:54,356 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 2216 transitions. [2019-11-20 02:50:54,356 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 02:50:54,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2216 transitions. [2019-11-20 02:50:54,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-11-20 02:50:54,362 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:50:54,362 INFO L410 BasicCegarLoop]: trace histogram [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, 2, 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] [2019-11-20 02:50:54,363 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:50:54,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:50:54,363 INFO L82 PathProgramCache]: Analyzing trace with hash -2072693678, now seen corresponding path program 1 times [2019-11-20 02:50:54,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:50:54,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059186770] [2019-11-20 02:50:54,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:50:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:50:54,470 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-11-20 02:50:54,470 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059186770] [2019-11-20 02:50:54,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:50:54,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 02:50:54,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105107441] [2019-11-20 02:50:54,472 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 02:50:54,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:50:54,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 02:50:54,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:50:54,473 INFO L87 Difference]: Start difference. First operand 1838 states and 2216 transitions. Second operand 4 states. [2019-11-20 02:50:55,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:50:55,358 INFO L93 Difference]: Finished difference Result 4591 states and 5491 transitions. [2019-11-20 02:50:55,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 02:50:55,359 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 203 [2019-11-20 02:50:55,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:50:55,371 INFO L225 Difference]: With dead ends: 4591 [2019-11-20 02:50:55,372 INFO L226 Difference]: Without dead ends: 2231 [2019-11-20 02:50:55,375 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 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 02:50:55,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2019-11-20 02:50:55,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1707. [2019-11-20 02:50:55,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2019-11-20 02:50:55,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1847 transitions. [2019-11-20 02:50:55,421 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1847 transitions. Word has length 203 [2019-11-20 02:50:55,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:50:55,422 INFO L462 AbstractCegarLoop]: Abstraction has 1707 states and 1847 transitions. [2019-11-20 02:50:55,422 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 02:50:55,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1847 transitions. [2019-11-20 02:50:55,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-11-20 02:50:55,428 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:50:55,428 INFO L410 BasicCegarLoop]: trace histogram [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, 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] [2019-11-20 02:50:55,429 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:50:55,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:50:55,429 INFO L82 PathProgramCache]: Analyzing trace with hash -230297452, now seen corresponding path program 1 times [2019-11-20 02:50:55,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:50:55,430 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182680397] [2019-11-20 02:50:55,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:50:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:50:55,712 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-11-20 02:50:55,713 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182680397] [2019-11-20 02:50:55,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:50:55,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 02:50:55,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037718310] [2019-11-20 02:50:55,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:50:55,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:50:55,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:50:55,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:50:55,719 INFO L87 Difference]: Start difference. First operand 1707 states and 1847 transitions. Second operand 3 states. [2019-11-20 02:50:56,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:50:56,194 INFO L93 Difference]: Finished difference Result 2100 states and 2283 transitions. [2019-11-20 02:50:56,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:50:56,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2019-11-20 02:50:56,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:50:56,196 INFO L225 Difference]: With dead ends: 2100 [2019-11-20 02:50:56,196 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 02:50:56,198 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:50:56,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 02:50:56,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 02:50:56,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 02:50:56,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 02:50:56,199 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 217 [2019-11-20 02:50:56,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:50:56,200 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:50:56,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:50:56,200 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 02:50:56,200 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 02:50:56,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 02:50:56,497 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 29 [2019-11-20 02:50:56,688 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 29 [2019-11-20 02:50:56,691 INFO L444 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-20 02:50:56,691 INFO L444 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-20 02:50:56,691 INFO L444 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,691 INFO L444 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,691 INFO L444 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,691 INFO L444 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,691 INFO L444 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,691 INFO L444 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,692 INFO L444 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-20 02:50:56,692 INFO L444 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-20 02:50:56,692 INFO L444 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2019-11-20 02:50:56,692 INFO L444 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2019-11-20 02:50:56,692 INFO L444 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2019-11-20 02:50:56,692 INFO L444 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2019-11-20 02:50:56,692 INFO L444 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2019-11-20 02:50:56,692 INFO L444 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2019-11-20 02:50:56,692 INFO L444 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-20 02:50:56,692 INFO L444 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-20 02:50:56,692 INFO L444 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,693 INFO L444 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,693 INFO L444 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,693 INFO L444 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,693 INFO L444 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,693 INFO L444 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,693 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-20 02:50:56,693 INFO L444 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-20 02:50:56,693 INFO L444 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2019-11-20 02:50:56,693 INFO L444 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2019-11-20 02:50:56,693 INFO L444 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2019-11-20 02:50:56,693 INFO L444 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-11-20 02:50:56,694 INFO L444 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-11-20 02:50:56,694 INFO L444 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2019-11-20 02:50:56,694 INFO L444 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-20 02:50:56,694 INFO L444 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-20 02:50:56,694 INFO L444 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-20 02:50:56,694 INFO L444 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-20 02:50:56,694 INFO L444 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-20 02:50:56,694 INFO L444 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-20 02:50:56,694 INFO L444 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-11-20 02:50:56,694 INFO L444 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,695 INFO L444 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,695 INFO L444 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,695 INFO L444 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,695 INFO L444 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,695 INFO L444 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-20 02:50:56,695 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-20 02:50:56,695 INFO L444 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2019-11-20 02:50:56,695 INFO L444 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-11-20 02:50:56,695 INFO L444 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2019-11-20 02:50:56,695 INFO L444 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2019-11-20 02:50:56,696 INFO L444 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-11-20 02:50:56,696 INFO L444 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2019-11-20 02:50:56,696 INFO L444 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-20 02:50:56,696 INFO L440 ceAbstractionStarter]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse3 (= ~a8~0 13))) (let ((.cse0 (not .cse3)) (.cse4 (= ~a20~0 1)) (.cse1 (not (= ~a7~0 1))) (.cse2 (= ~a21~0 1)) (.cse5 (not (= ~a16~0 6)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4) (and .cse0 .cse5 .cse2) (and (not (= 15 ~a8~0)) (and .cse2 .cse4)) (and .cse1 .cse5 .cse2) (and .cse5 .cse3 (= ~a17~0 1))))) [2019-11-20 02:50:56,696 INFO L444 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,696 INFO L444 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,696 INFO L444 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,697 INFO L444 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,697 INFO L444 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,697 INFO L444 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-20 02:50:56,697 INFO L444 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2019-11-20 02:50:56,697 INFO L444 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2019-11-20 02:50:56,697 INFO L444 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2019-11-20 02:50:56,697 INFO L444 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2019-11-20 02:50:56,697 INFO L444 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2019-11-20 02:50:56,697 INFO L444 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-20 02:50:56,697 INFO L444 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-20 02:50:56,697 INFO L444 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-20 02:50:56,697 INFO L444 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-20 02:50:56,698 INFO L444 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-20 02:50:56,698 INFO L444 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-20 02:50:56,698 INFO L444 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-20 02:50:56,699 INFO L447 ceAbstractionStarter]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-11-20 02:50:56,700 INFO L444 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,700 INFO L444 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,700 INFO L444 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,700 INFO L444 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,700 INFO L444 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,700 INFO L444 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-20 02:50:56,700 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-20 02:50:56,701 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-20 02:50:56,701 INFO L444 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-11-20 02:50:56,701 INFO L444 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2019-11-20 02:50:56,701 INFO L444 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2019-11-20 02:50:56,701 INFO L444 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-11-20 02:50:56,701 INFO L444 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2019-11-20 02:50:56,701 INFO L444 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-20 02:50:56,701 INFO L444 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,702 INFO L444 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,702 INFO L444 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,702 INFO L444 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,702 INFO L444 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-20 02:50:56,702 INFO L444 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,702 INFO L444 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-20 02:50:56,702 INFO L444 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-20 02:50:56,703 INFO L444 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2019-11-20 02:50:56,703 INFO L444 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-11-20 02:50:56,703 INFO L444 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-11-20 02:50:56,703 INFO L444 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-11-20 02:50:56,703 INFO L444 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2019-11-20 02:50:56,703 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 02:50:56,703 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-20 02:50:56,704 INFO L444 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-20 02:50:56,704 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-20 02:50:56,704 INFO L444 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-20 02:50:56,704 INFO L444 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-20 02:50:56,704 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-20 02:50:56,704 INFO L444 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,704 INFO L440 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse3 (= ~a8~0 13))) (let ((.cse0 (not .cse3)) (.cse4 (= ~a20~0 1)) (.cse1 (not (= ~a7~0 1))) (.cse2 (= ~a21~0 1)) (.cse5 (not (= ~a16~0 6)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4) (and .cse0 .cse5 .cse2) (and (not (= 15 ~a8~0)) (and .cse2 .cse4)) (and .cse1 .cse5 .cse2) (and .cse5 .cse3 (= ~a17~0 1))))) [2019-11-20 02:50:56,705 INFO L444 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,705 INFO L444 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,705 INFO L444 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,705 INFO L444 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,705 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-20 02:50:56,705 INFO L444 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2019-11-20 02:50:56,705 INFO L444 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2019-11-20 02:50:56,706 INFO L444 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-11-20 02:50:56,706 INFO L444 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-11-20 02:50:56,706 INFO L444 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-11-20 02:50:56,706 INFO L444 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-20 02:50:56,706 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-20 02:50:56,706 INFO L444 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,706 INFO L444 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,707 INFO L444 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,707 INFO L444 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,707 INFO L444 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,707 INFO L444 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-20 02:50:56,707 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 02:50:56,707 INFO L444 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-20 02:50:56,707 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-20 02:50:56,707 INFO L444 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-20 02:50:56,708 INFO L444 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2019-11-20 02:50:56,708 INFO L444 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2019-11-20 02:50:56,708 INFO L444 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-11-20 02:50:56,708 INFO L444 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-11-20 02:50:56,708 INFO L444 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2019-11-20 02:50:56,708 INFO L444 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-20 02:50:56,708 INFO L444 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-20 02:50:56,709 INFO L444 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-20 02:50:56,709 INFO L444 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,709 INFO L444 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,709 INFO L444 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,709 INFO L444 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,709 INFO L444 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-11-20 02:50:56,709 INFO L444 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,709 INFO L444 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,710 INFO L444 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-20 02:50:56,710 INFO L444 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-20 02:50:56,710 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 02:50:56,710 INFO L444 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2019-11-20 02:50:56,710 INFO L444 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2019-11-20 02:50:56,710 INFO L444 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2019-11-20 02:50:56,710 INFO L444 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-11-20 02:50:56,711 INFO L444 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2019-11-20 02:50:56,711 INFO L444 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2019-11-20 02:50:56,711 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-20 02:50:56,711 INFO L444 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-20 02:50:56,711 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-20 02:50:56,711 INFO L444 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-20 02:50:56,711 INFO L444 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,711 INFO L444 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,712 INFO L444 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,712 INFO L444 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,712 INFO L444 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,712 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-20 02:50:56,712 INFO L444 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,712 INFO L444 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-20 02:50:56,712 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-20 02:50:56,713 INFO L444 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2019-11-20 02:50:56,713 INFO L444 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2019-11-20 02:50:56,713 INFO L444 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-11-20 02:50:56,713 INFO L444 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2019-11-20 02:50:56,713 INFO L444 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-11-20 02:50:56,713 INFO L444 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2019-11-20 02:50:56,713 INFO L444 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-20 02:50:56,714 INFO L444 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-20 02:50:56,714 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-20 02:50:56,714 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 02:50:56,714 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed. [2019-11-20 02:50:56,714 INFO L444 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-20 02:50:56,714 INFO L444 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-20 02:50:56,714 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-20 02:50:56,715 INFO L444 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,715 INFO L444 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,715 INFO L444 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,715 INFO L444 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,715 INFO L444 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,715 INFO L444 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 02:50:56,715 INFO L444 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-20 02:50:56,715 INFO L444 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2019-11-20 02:50:56,716 INFO L444 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2019-11-20 02:50:56,716 INFO L444 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2019-11-20 02:50:56,716 INFO L444 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2019-11-20 02:50:56,716 INFO L444 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2019-11-20 02:50:56,716 INFO L444 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2019-11-20 02:50:56,716 INFO L444 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-20 02:50:56,716 INFO L444 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-20 02:50:56,717 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-20 02:50:56,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 02:50:56 BoogieIcfgContainer [2019-11-20 02:50:56,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 02:50:56,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:50:56,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:50:56,754 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:50:56,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:50:46" (3/4) ... [2019-11-20 02:50:56,758 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 02:50:56,790 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 02:50:56,792 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 02:50:57,024 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_be851ceb-29bf-42d1-86fa-2dcefddd45dd/bin/uautomizer/witness.graphml [2019-11-20 02:50:57,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:50:57,026 INFO L168 Benchmark]: Toolchain (without parser) took 12876.23 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 254.8 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -73.9 MB). Peak memory consumption was 180.9 MB. Max. memory is 11.5 GB. [2019-11-20 02:50:57,026 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:50:57,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-20 02:50:57,027 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:50:57,028 INFO L168 Benchmark]: Boogie Preprocessor took 94.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:50:57,028 INFO L168 Benchmark]: RCFGBuilder took 1582.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.9 MB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. [2019-11-20 02:50:57,029 INFO L168 Benchmark]: TraceAbstraction took 10090.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 114.3 MB). Free memory was 991.9 MB in the beginning and 1.0 GB in the end (delta: -53.3 MB). Peak memory consumption was 61.0 MB. Max. memory is 11.5 GB. [2019-11-20 02:50:57,029 INFO L168 Benchmark]: Witness Printer took 271.35 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-20 02:50:57,033 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 743.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 87.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 94.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1582.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.9 MB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10090.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 114.3 MB). Free memory was 991.9 MB in the beginning and 1.0 GB in the end (delta: -53.3 MB). Peak memory consumption was 61.0 MB. Max. memory is 11.5 GB. * Witness Printer took 271.35 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 515]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((!(a8 == 13) && !(a7 == 1)) && a21 == 1) || (a8 == 13 && a20 == 1)) || ((!(a8 == 13) && !(a16 == 6)) && a21 == 1)) || (!(15 == a8) && a21 == 1 && a20 == 1)) || ((!(a7 == 1) && !(a16 == 6)) && a21 == 1)) || ((!(a16 == 6) && a8 == 13) && a17 == 1) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((!(a8 == 13) && !(a7 == 1)) && a21 == 1) || (a8 == 13 && a20 == 1)) || ((!(a8 == 13) && !(a16 == 6)) && a21 == 1)) || (!(15 == a8) && a21 == 1 && a20 == 1)) || ((!(a7 == 1) && !(a16 == 6)) && a21 == 1)) || ((!(a16 == 6) && a8 == 13) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Result: SAFE, OverallTime: 9.9s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, HoareTripleCheckerStatistics: 520 SDtfs, 1863 SDslu, 85 SDs, 0 SdLazy, 4383 SolverSat, 719 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1838occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 1836 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 45 NumberOfFragments, 135 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2771 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 466 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1455 NumberOfCodeBlocks, 1455 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1446 ConstructedInterpolants, 0 QuantifiedInterpolants, 543858 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 640/640 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...