./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label46.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_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label46.c -s /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/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 15c406f4c881927013bc1c3740a0ccf2226e847a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 07:25:26,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:25:26,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:25:26,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:25:26,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:25:26,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:25:26,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:25:26,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:25:26,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:25:26,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:25:26,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:25:26,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:25:26,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:25:26,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:25:26,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:25:26,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:25:26,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:25:26,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:25:26,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:25:26,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:25:26,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:25:26,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:25:26,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:25:26,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:25:26,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:25:26,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:25:26,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:25:26,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:25:26,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:25:26,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:25:26,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:25:26,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:25:26,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:25:26,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:25:26,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:25:26,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:25:26,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:25:26,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:25:26,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:25:26,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:25:26,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:25:26,141 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 07:25:26,167 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:25:26,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:25:26,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:25:26,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:25:26,168 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:25:26,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:25:26,169 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:25:26,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:25:26,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:25:26,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:25:26,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:25:26,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:25:26,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:25:26,170 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:25:26,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:25:26,171 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:25:26,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:25:26,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:25:26,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:25:26,171 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:25:26,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:25:26,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:25:26,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:25:26,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:25:26,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:25:26,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 07:25:26,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 07:25:26,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:25:26,173 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_487d197e-d5fe-45ec-95da-dd465195f639/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 -> 15c406f4c881927013bc1c3740a0ccf2226e847a [2019-11-20 07:25:26,347 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:25:26,358 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:25:26,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:25:26,362 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:25:26,363 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:25:26,363 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label46.c [2019-11-20 07:25:26,427 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/data/56ab3f0c6/ce76d9315206443fb07028326d233926/FLAGd2deefb54 [2019-11-20 07:25:26,861 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:25:26,862 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/sv-benchmarks/c/eca-rers2012/Problem14_label46.c [2019-11-20 07:25:26,884 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/data/56ab3f0c6/ce76d9315206443fb07028326d233926/FLAGd2deefb54 [2019-11-20 07:25:27,156 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/data/56ab3f0c6/ce76d9315206443fb07028326d233926 [2019-11-20 07:25:27,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:25:27,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:25:27,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:25:27,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:25:27,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:25:27,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:25:27" (1/1) ... [2019-11-20 07:25:27,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@396b9d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:27, skipping insertion in model container [2019-11-20 07:25:27,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:25:27" (1/1) ... [2019-11-20 07:25:27,175 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:25:27,220 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:25:27,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:25:27,840 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:25:28,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:25:28,038 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:25:28,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:28 WrapperNode [2019-11-20 07:25:28,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:25:28,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:25:28,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:25:28,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:25:28,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:28" (1/1) ... [2019-11-20 07:25:28,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:28" (1/1) ... [2019-11-20 07:25:28,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:25:28,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:25:28,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:25:28,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:25:28,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:28" (1/1) ... [2019-11-20 07:25:28,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:28" (1/1) ... [2019-11-20 07:25:28,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:28" (1/1) ... [2019-11-20 07:25:28,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:28" (1/1) ... [2019-11-20 07:25:28,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:28" (1/1) ... [2019-11-20 07:25:28,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:28" (1/1) ... [2019-11-20 07:25:28,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:28" (1/1) ... [2019-11-20 07:25:28,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:25:28,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:25:28,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:25:28,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:25:28,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/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 07:25:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:25:28,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:25:30,028 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:25:30,028 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 07:25:30,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:25:30 BoogieIcfgContainer [2019-11-20 07:25:30,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:25:30,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:25:30,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:25:30,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:25:30,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:25:27" (1/3) ... [2019-11-20 07:25:30,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363a08d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:25:30, skipping insertion in model container [2019-11-20 07:25:30,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:25:28" (2/3) ... [2019-11-20 07:25:30,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363a08d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:25:30, skipping insertion in model container [2019-11-20 07:25:30,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:25:30" (3/3) ... [2019-11-20 07:25:30,041 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label46.c [2019-11-20 07:25:30,051 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:25:30,058 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 07:25:30,070 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 07:25:30,106 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:25:30,106 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 07:25:30,106 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:25:30,106 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:25:30,107 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:25:30,107 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:25:30,107 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:25:30,107 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:25:30,133 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2019-11-20 07:25:30,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 07:25:30,143 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:25:30,144 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] [2019-11-20 07:25:30,145 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:25:30,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:30,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1453294289, now seen corresponding path program 1 times [2019-11-20 07:25:30,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:30,162 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681426573] [2019-11-20 07:25:30,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:30,614 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 07:25:30,614 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681426573] [2019-11-20 07:25:30,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:25:30,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 07:25:30,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293182958] [2019-11-20 07:25:30,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 07:25:30,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:30,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 07:25:30,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-20 07:25:30,638 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 6 states. [2019-11-20 07:25:33,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:33,160 INFO L93 Difference]: Finished difference Result 852 states and 1560 transitions. [2019-11-20 07:25:33,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 07:25:33,162 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2019-11-20 07:25:33,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:25:33,188 INFO L225 Difference]: With dead ends: 852 [2019-11-20 07:25:33,191 INFO L226 Difference]: Without dead ends: 538 [2019-11-20 07:25:33,199 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:25:33,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-20 07:25:33,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-11-20 07:25:33,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-20 07:25:33,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2019-11-20 07:25:33,298 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 39 [2019-11-20 07:25:33,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:25:33,298 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2019-11-20 07:25:33,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 07:25:33,299 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2019-11-20 07:25:33,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-11-20 07:25:33,309 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:25:33,310 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:25:33,310 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:25:33,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:33,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1976295897, now seen corresponding path program 1 times [2019-11-20 07:25:33,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:33,310 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915878247] [2019-11-20 07:25:33,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:33,536 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-20 07:25:33,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915878247] [2019-11-20 07:25:33,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:25:33,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 07:25:33,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334255349] [2019-11-20 07:25:33,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:25:33,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:33,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:25:33,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:25:33,539 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand 4 states. [2019-11-20 07:25:34,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:34,837 INFO L93 Difference]: Finished difference Result 1252 states and 1948 transitions. [2019-11-20 07:25:34,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 07:25:34,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 187 [2019-11-20 07:25:34,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:25:34,843 INFO L225 Difference]: With dead ends: 1252 [2019-11-20 07:25:34,843 INFO L226 Difference]: Without dead ends: 894 [2019-11-20 07:25:34,845 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:25:34,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2019-11-20 07:25:34,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2019-11-20 07:25:34,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2019-11-20 07:25:34,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1206 transitions. [2019-11-20 07:25:34,878 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1206 transitions. Word has length 187 [2019-11-20 07:25:34,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:25:34,879 INFO L462 AbstractCegarLoop]: Abstraction has 894 states and 1206 transitions. [2019-11-20 07:25:34,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:25:34,879 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1206 transitions. [2019-11-20 07:25:34,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-11-20 07:25:34,888 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:25:34,888 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-20 07:25:34,888 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:25:34,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:34,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1989656586, now seen corresponding path program 1 times [2019-11-20 07:25:34,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:34,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022130714] [2019-11-20 07:25:34,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:35,200 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 140 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-20 07:25:35,201 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022130714] [2019-11-20 07:25:35,201 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928512026] [2019-11-20 07:25:35,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:35,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 07:25:35,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:35,373 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-11-20 07:25:35,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 07:25:35,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2019-11-20 07:25:35,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425622479] [2019-11-20 07:25:35,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 07:25:35,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:35,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:25:35,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 07:25:35,376 INFO L87 Difference]: Start difference. First operand 894 states and 1206 transitions. Second operand 3 states. [2019-11-20 07:25:36,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:36,190 INFO L93 Difference]: Finished difference Result 2320 states and 3245 transitions. [2019-11-20 07:25:36,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:25:36,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2019-11-20 07:25:36,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:25:36,203 INFO L225 Difference]: With dead ends: 2320 [2019-11-20 07:25:36,203 INFO L226 Difference]: Without dead ends: 1606 [2019-11-20 07:25:36,205 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 07:25:36,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2019-11-20 07:25:36,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2019-11-20 07:25:36,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2019-11-20 07:25:36,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1842 transitions. [2019-11-20 07:25:36,242 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1842 transitions. Word has length 210 [2019-11-20 07:25:36,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:25:36,243 INFO L462 AbstractCegarLoop]: Abstraction has 1428 states and 1842 transitions. [2019-11-20 07:25:36,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 07:25:36,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1842 transitions. [2019-11-20 07:25:36,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2019-11-20 07:25:36,250 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:25:36,251 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:25:36,457 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:36,458 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:25:36,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:36,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1040958891, now seen corresponding path program 1 times [2019-11-20 07:25:36,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:36,459 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010703959] [2019-11-20 07:25:36,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 248 proven. 4 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2019-11-20 07:25:36,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010703959] [2019-11-20 07:25:36,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448316027] [2019-11-20 07:25:36,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:36,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 07:25:36,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:36,992 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2019-11-20 07:25:36,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 07:25:36,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2019-11-20 07:25:36,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360465961] [2019-11-20 07:25:36,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 07:25:36,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:36,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:25:36,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 07:25:36,994 INFO L87 Difference]: Start difference. First operand 1428 states and 1842 transitions. Second operand 3 states. [2019-11-20 07:25:38,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:38,000 INFO L93 Difference]: Finished difference Result 3388 states and 4517 transitions. [2019-11-20 07:25:38,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:25:38,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 309 [2019-11-20 07:25:38,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:25:38,013 INFO L225 Difference]: With dead ends: 3388 [2019-11-20 07:25:38,013 INFO L226 Difference]: Without dead ends: 2140 [2019-11-20 07:25:38,015 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 07:25:38,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2019-11-20 07:25:38,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2019-11-20 07:25:38,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2019-11-20 07:25:38,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2478 transitions. [2019-11-20 07:25:38,061 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2478 transitions. Word has length 309 [2019-11-20 07:25:38,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:25:38,063 INFO L462 AbstractCegarLoop]: Abstraction has 1962 states and 2478 transitions. [2019-11-20 07:25:38,063 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 07:25:38,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2478 transitions. [2019-11-20 07:25:38,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2019-11-20 07:25:38,069 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:25:38,070 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:25:38,286 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:38,286 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:25:38,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:38,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1776950710, now seen corresponding path program 1 times [2019-11-20 07:25:38,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:38,287 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191418418] [2019-11-20 07:25:38,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:38,630 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 248 proven. 4 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2019-11-20 07:25:38,630 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191418418] [2019-11-20 07:25:38,631 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282753382] [2019-11-20 07:25:38,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:38,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 07:25:38,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:38,945 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2019-11-20 07:25:38,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 07:25:38,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-11-20 07:25:38,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424653771] [2019-11-20 07:25:38,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:25:38,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:38,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:25:38,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-20 07:25:38,947 INFO L87 Difference]: Start difference. First operand 1962 states and 2478 transitions. Second operand 4 states. [2019-11-20 07:25:39,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:39,770 INFO L93 Difference]: Finished difference Result 3951 states and 5007 transitions. [2019-11-20 07:25:39,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 07:25:39,771 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 328 [2019-11-20 07:25:39,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:25:39,782 INFO L225 Difference]: With dead ends: 3951 [2019-11-20 07:25:39,782 INFO L226 Difference]: Without dead ends: 2140 [2019-11-20 07:25:39,784 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 327 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-20 07:25:39,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2019-11-20 07:25:39,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2019-11-20 07:25:39,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2019-11-20 07:25:39,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2178 transitions. [2019-11-20 07:25:39,826 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2178 transitions. Word has length 328 [2019-11-20 07:25:39,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:25:39,827 INFO L462 AbstractCegarLoop]: Abstraction has 1962 states and 2178 transitions. [2019-11-20 07:25:39,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:25:39,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2178 transitions. [2019-11-20 07:25:39,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2019-11-20 07:25:39,836 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:25:39,836 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:25:40,040 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:40,040 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:25:40,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:40,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1745090076, now seen corresponding path program 1 times [2019-11-20 07:25:40,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:40,041 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68778718] [2019-11-20 07:25:40,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:40,798 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 419 proven. 65 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2019-11-20 07:25:40,799 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68778718] [2019-11-20 07:25:40,802 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121548464] [2019-11-20 07:25:40,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:40,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 07:25:40,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:41,369 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 503 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2019-11-20 07:25:41,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 07:25:41,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2019-11-20 07:25:41,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378927095] [2019-11-20 07:25:41,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 07:25:41,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:41,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 07:25:41,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-11-20 07:25:41,372 INFO L87 Difference]: Start difference. First operand 1962 states and 2178 transitions. Second operand 7 states. [2019-11-20 07:25:42,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:42,288 INFO L93 Difference]: Finished difference Result 3972 states and 4416 transitions. [2019-11-20 07:25:42,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 07:25:42,289 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 423 [2019-11-20 07:25:42,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:25:42,300 INFO L225 Difference]: With dead ends: 3972 [2019-11-20 07:25:42,300 INFO L226 Difference]: Without dead ends: 2140 [2019-11-20 07:25:42,311 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 418 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-11-20 07:25:42,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2019-11-20 07:25:42,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2019-11-20 07:25:42,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2019-11-20 07:25:42,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2130 transitions. [2019-11-20 07:25:42,349 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2130 transitions. Word has length 423 [2019-11-20 07:25:42,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:25:42,349 INFO L462 AbstractCegarLoop]: Abstraction has 1962 states and 2130 transitions. [2019-11-20 07:25:42,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 07:25:42,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2130 transitions. [2019-11-20 07:25:42,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2019-11-20 07:25:42,361 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:25:42,362 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2019-11-20 07:25:42,576 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:42,576 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:25:42,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:42,577 INFO L82 PathProgramCache]: Analyzing trace with hash 482320211, now seen corresponding path program 1 times [2019-11-20 07:25:42,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:42,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984199236] [2019-11-20 07:25:42,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:43,094 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 449 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2019-11-20 07:25:43,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984199236] [2019-11-20 07:25:43,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:25:43,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 07:25:43,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127075388] [2019-11-20 07:25:43,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:25:43,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:43,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:25:43,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:25:43,097 INFO L87 Difference]: Start difference. First operand 1962 states and 2130 transitions. Second operand 4 states. [2019-11-20 07:25:44,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:44,073 INFO L93 Difference]: Finished difference Result 5168 states and 5693 transitions. [2019-11-20 07:25:44,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 07:25:44,074 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 526 [2019-11-20 07:25:44,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:25:44,091 INFO L225 Difference]: With dead ends: 5168 [2019-11-20 07:25:44,091 INFO L226 Difference]: Without dead ends: 3386 [2019-11-20 07:25:44,094 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:25:44,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2019-11-20 07:25:44,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3208. [2019-11-20 07:25:44,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2019-11-20 07:25:44,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3480 transitions. [2019-11-20 07:25:44,163 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3480 transitions. Word has length 526 [2019-11-20 07:25:44,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:25:44,164 INFO L462 AbstractCegarLoop]: Abstraction has 3208 states and 3480 transitions. [2019-11-20 07:25:44,164 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:25:44,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3480 transitions. [2019-11-20 07:25:44,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2019-11-20 07:25:44,180 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:25:44,181 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:25:44,181 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:25:44,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:44,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1579274014, now seen corresponding path program 1 times [2019-11-20 07:25:44,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:44,182 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781974926] [2019-11-20 07:25:44,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:45,428 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2019-11-20 07:25:45,429 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781974926] [2019-11-20 07:25:45,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:25:45,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 07:25:45,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100880208] [2019-11-20 07:25:45,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 07:25:45,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:45,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 07:25:45,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:25:45,431 INFO L87 Difference]: Start difference. First operand 3208 states and 3480 transitions. Second operand 8 states. [2019-11-20 07:25:46,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:46,849 INFO L93 Difference]: Finished difference Result 6432 states and 6979 transitions. [2019-11-20 07:25:46,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 07:25:46,850 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 596 [2019-11-20 07:25:46,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:25:46,868 INFO L225 Difference]: With dead ends: 6432 [2019-11-20 07:25:46,868 INFO L226 Difference]: Without dead ends: 3404 [2019-11-20 07:25:46,872 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2019-11-20 07:25:46,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2019-11-20 07:25:46,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 3208. [2019-11-20 07:25:46,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2019-11-20 07:25:46,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3476 transitions. [2019-11-20 07:25:46,942 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3476 transitions. Word has length 596 [2019-11-20 07:25:46,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:25:46,943 INFO L462 AbstractCegarLoop]: Abstraction has 3208 states and 3476 transitions. [2019-11-20 07:25:46,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 07:25:46,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3476 transitions. [2019-11-20 07:25:46,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2019-11-20 07:25:46,950 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:25:46,951 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:25:46,951 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:25:46,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:46,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1906346804, now seen corresponding path program 1 times [2019-11-20 07:25:46,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:46,952 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158291608] [2019-11-20 07:25:46,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:48,128 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 687 proven. 45 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2019-11-20 07:25:48,128 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158291608] [2019-11-20 07:25:48,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458354970] [2019-11-20 07:25:48,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:48,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 07:25:48,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:48,695 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2019-11-20 07:25:48,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 07:25:48,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-11-20 07:25:48,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245876414] [2019-11-20 07:25:48,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 07:25:48,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:48,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:25:48,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:25:48,698 INFO L87 Difference]: Start difference. First operand 3208 states and 3476 transitions. Second operand 3 states. [2019-11-20 07:25:49,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:49,412 INFO L93 Difference]: Finished difference Result 7660 states and 8292 transitions. [2019-11-20 07:25:49,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:25:49,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 664 [2019-11-20 07:25:49,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:25:49,436 INFO L225 Difference]: With dead ends: 7660 [2019-11-20 07:25:49,437 INFO L226 Difference]: Without dead ends: 4632 [2019-11-20 07:25:49,441 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 663 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:25:49,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2019-11-20 07:25:49,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 3920. [2019-11-20 07:25:49,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2019-11-20 07:25:49,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4194 transitions. [2019-11-20 07:25:49,528 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4194 transitions. Word has length 664 [2019-11-20 07:25:49,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:25:49,530 INFO L462 AbstractCegarLoop]: Abstraction has 3920 states and 4194 transitions. [2019-11-20 07:25:49,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 07:25:49,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4194 transitions. [2019-11-20 07:25:49,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2019-11-20 07:25:49,543 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:25:49,544 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-20 07:25:49,748 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:49,749 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:25:49,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:49,749 INFO L82 PathProgramCache]: Analyzing trace with hash 945691275, now seen corresponding path program 1 times [2019-11-20 07:25:49,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:49,750 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970580353] [2019-11-20 07:25:49,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:50,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 761 proven. 45 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2019-11-20 07:25:50,874 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970580353] [2019-11-20 07:25:50,876 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643363638] [2019-11-20 07:25:50,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:51,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 821 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 07:25:51,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:51,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 806 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2019-11-20 07:25:51,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 07:25:51,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-11-20 07:25:51,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304458342] [2019-11-20 07:25:51,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 07:25:51,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:51,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:25:51,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:25:51,479 INFO L87 Difference]: Start difference. First operand 3920 states and 4194 transitions. Second operand 3 states. [2019-11-20 07:25:52,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:52,186 INFO L93 Difference]: Finished difference Result 8372 states and 8972 transitions. [2019-11-20 07:25:52,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:25:52,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 669 [2019-11-20 07:25:52,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:25:52,209 INFO L225 Difference]: With dead ends: 8372 [2019-11-20 07:25:52,209 INFO L226 Difference]: Without dead ends: 4632 [2019-11-20 07:25:52,213 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:25:52,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2019-11-20 07:25:52,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2019-11-20 07:25:52,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2019-11-20 07:25:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4933 transitions. [2019-11-20 07:25:52,302 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4933 transitions. Word has length 669 [2019-11-20 07:25:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:25:52,303 INFO L462 AbstractCegarLoop]: Abstraction has 4632 states and 4933 transitions. [2019-11-20 07:25:52,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 07:25:52,303 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4933 transitions. [2019-11-20 07:25:52,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 715 [2019-11-20 07:25:52,313 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:25:52,315 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:25:52,519 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:52,519 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:25:52,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:52,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1584602280, now seen corresponding path program 1 times [2019-11-20 07:25:52,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:52,520 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392468245] [2019-11-20 07:25:52,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:53,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1635 backedges. 1172 proven. 0 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2019-11-20 07:25:53,067 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392468245] [2019-11-20 07:25:53,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:25:53,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 07:25:53,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453272938] [2019-11-20 07:25:53,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 07:25:53,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:53,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:25:53,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 07:25:53,069 INFO L87 Difference]: Start difference. First operand 4632 states and 4933 transitions. Second operand 3 states. [2019-11-20 07:25:53,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:53,847 INFO L93 Difference]: Finished difference Result 10330 states and 11011 transitions. [2019-11-20 07:25:53,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:25:53,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 714 [2019-11-20 07:25:53,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:25:53,873 INFO L225 Difference]: With dead ends: 10330 [2019-11-20 07:25:53,873 INFO L226 Difference]: Without dead ends: 5878 [2019-11-20 07:25:53,878 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 07:25:53,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2019-11-20 07:25:53,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5522. [2019-11-20 07:25:53,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5522 states. [2019-11-20 07:25:53,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5863 transitions. [2019-11-20 07:25:53,960 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5863 transitions. Word has length 714 [2019-11-20 07:25:53,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:25:53,961 INFO L462 AbstractCegarLoop]: Abstraction has 5522 states and 5863 transitions. [2019-11-20 07:25:53,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 07:25:53,961 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5863 transitions. [2019-11-20 07:25:53,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2019-11-20 07:25:53,972 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:25:53,973 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:25:53,973 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:25:53,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:53,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1269972873, now seen corresponding path program 1 times [2019-11-20 07:25:53,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:53,975 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574762515] [2019-11-20 07:25:53,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:54,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2103 backedges. 1427 proven. 0 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2019-11-20 07:25:54,612 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574762515] [2019-11-20 07:25:54,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:25:54,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 07:25:54,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304386016] [2019-11-20 07:25:54,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 07:25:54,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:54,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:25:54,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 07:25:54,614 INFO L87 Difference]: Start difference. First operand 5522 states and 5863 transitions. Second operand 3 states. [2019-11-20 07:25:55,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:55,321 INFO L93 Difference]: Finished difference Result 10864 states and 11541 transitions. [2019-11-20 07:25:55,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:25:55,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 786 [2019-11-20 07:25:55,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:25:55,340 INFO L225 Difference]: With dead ends: 10864 [2019-11-20 07:25:55,341 INFO L226 Difference]: Without dead ends: 5522 [2019-11-20 07:25:55,347 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 07:25:55,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2019-11-20 07:25:55,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5522. [2019-11-20 07:25:55,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5522 states. [2019-11-20 07:25:55,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5834 transitions. [2019-11-20 07:25:55,434 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5834 transitions. Word has length 786 [2019-11-20 07:25:55,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:25:55,435 INFO L462 AbstractCegarLoop]: Abstraction has 5522 states and 5834 transitions. [2019-11-20 07:25:55,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 07:25:55,436 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5834 transitions. [2019-11-20 07:25:55,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 871 [2019-11-20 07:25:55,448 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:25:55,449 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:25:55,449 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:25:55,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:55,450 INFO L82 PathProgramCache]: Analyzing trace with hash -928636369, now seen corresponding path program 1 times [2019-11-20 07:25:55,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:55,450 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840361194] [2019-11-20 07:25:55,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2212 backedges. 1135 proven. 4 refuted. 0 times theorem prover too weak. 1073 trivial. 0 not checked. [2019-11-20 07:25:56,689 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840361194] [2019-11-20 07:25:56,689 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473233233] [2019-11-20 07:25:56,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:25:56,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 07:25:56,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:25:56,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:25:57,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2212 backedges. 1116 proven. 23 refuted. 0 times theorem prover too weak. 1073 trivial. 0 not checked. [2019-11-20 07:25:57,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:25:57,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-11-20 07:25:57,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711840990] [2019-11-20 07:25:57,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 07:25:57,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:25:57,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 07:25:57,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:25:57,705 INFO L87 Difference]: Start difference. First operand 5522 states and 5834 transitions. Second operand 8 states. [2019-11-20 07:25:59,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:25:59,449 INFO L93 Difference]: Finished difference Result 11485 states and 12113 transitions. [2019-11-20 07:25:59,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 07:25:59,449 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 870 [2019-11-20 07:25:59,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:25:59,460 INFO L225 Difference]: With dead ends: 11485 [2019-11-20 07:25:59,460 INFO L226 Difference]: Without dead ends: 6143 [2019-11-20 07:25:59,467 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 878 GetRequests, 867 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-11-20 07:25:59,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6143 states. [2019-11-20 07:25:59,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6143 to 5522. [2019-11-20 07:25:59,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5522 states. [2019-11-20 07:25:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5833 transitions. [2019-11-20 07:25:59,576 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5833 transitions. Word has length 870 [2019-11-20 07:25:59,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:25:59,577 INFO L462 AbstractCegarLoop]: Abstraction has 5522 states and 5833 transitions. [2019-11-20 07:25:59,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 07:25:59,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5833 transitions. [2019-11-20 07:25:59,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 960 [2019-11-20 07:25:59,596 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:25:59,597 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:25:59,801 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:25:59,801 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:25:59,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:25:59,802 INFO L82 PathProgramCache]: Analyzing trace with hash -754416928, now seen corresponding path program 1 times [2019-11-20 07:25:59,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:25:59,803 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024011984] [2019-11-20 07:25:59,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:25:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:01,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2884 backedges. 1955 proven. 0 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2019-11-20 07:26:01,597 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024011984] [2019-11-20 07:26:01,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:26:01,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 07:26:01,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022124946] [2019-11-20 07:26:01,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 07:26:01,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:01,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 07:26:01,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:26:01,599 INFO L87 Difference]: Start difference. First operand 5522 states and 5833 transitions. Second operand 7 states. [2019-11-20 07:26:02,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:02,775 INFO L93 Difference]: Finished difference Result 11223 states and 11847 transitions. [2019-11-20 07:26:02,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 07:26:02,775 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 959 [2019-11-20 07:26:02,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:02,785 INFO L225 Difference]: With dead ends: 11223 [2019-11-20 07:26:02,785 INFO L226 Difference]: Without dead ends: 5881 [2019-11-20 07:26:02,791 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:26:02,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5881 states. [2019-11-20 07:26:02,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5881 to 5522. [2019-11-20 07:26:02,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5522 states. [2019-11-20 07:26:02,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5828 transitions. [2019-11-20 07:26:02,874 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5828 transitions. Word has length 959 [2019-11-20 07:26:02,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:02,876 INFO L462 AbstractCegarLoop]: Abstraction has 5522 states and 5828 transitions. [2019-11-20 07:26:02,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 07:26:02,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5828 transitions. [2019-11-20 07:26:02,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2019-11-20 07:26:02,890 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:02,890 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:26:02,891 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:02,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:02,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1310024199, now seen corresponding path program 1 times [2019-11-20 07:26:02,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:02,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094719724] [2019-11-20 07:26:02,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:04,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 2408 proven. 140 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2019-11-20 07:26:04,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094719724] [2019-11-20 07:26:04,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651735893] [2019-11-20 07:26:04,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:04,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 07:26:04,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:04,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:04,542 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:04,577 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:04,578 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 2485 proven. 616 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2019-11-20 07:26:05,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:05,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-11-20 07:26:05,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837263270] [2019-11-20 07:26:05,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 07:26:05,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:05,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 07:26:05,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:26:05,574 INFO L87 Difference]: Start difference. First operand 5522 states and 5828 transitions. Second operand 7 states. [2019-11-20 07:26:07,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:07,393 INFO L93 Difference]: Finished difference Result 12288 states and 12967 transitions. [2019-11-20 07:26:07,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 07:26:07,393 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1036 [2019-11-20 07:26:07,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:07,408 INFO L225 Difference]: With dead ends: 12288 [2019-11-20 07:26:07,408 INFO L226 Difference]: Without dead ends: 6946 [2019-11-20 07:26:07,416 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1048 GetRequests, 1037 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2019-11-20 07:26:07,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2019-11-20 07:26:07,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 5878. [2019-11-20 07:26:07,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5878 states. [2019-11-20 07:26:07,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6137 transitions. [2019-11-20 07:26:07,500 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6137 transitions. Word has length 1036 [2019-11-20 07:26:07,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:07,502 INFO L462 AbstractCegarLoop]: Abstraction has 5878 states and 6137 transitions. [2019-11-20 07:26:07,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 07:26:07,502 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6137 transitions. [2019-11-20 07:26:07,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1184 [2019-11-20 07:26:07,518 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:07,519 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:26:07,733 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:07,733 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:07,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:07,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1616010734, now seen corresponding path program 1 times [2019-11-20 07:26:07,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:07,736 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422911424] [2019-11-20 07:26:07,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:09,144 INFO L134 CoverageAnalysis]: Checked inductivity of 4663 backedges. 2672 proven. 6 refuted. 0 times theorem prover too weak. 1985 trivial. 0 not checked. [2019-11-20 07:26:09,144 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422911424] [2019-11-20 07:26:09,144 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197409519] [2019-11-20 07:26:09,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:09,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 07:26:09,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:10,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4663 backedges. 1978 proven. 0 refuted. 0 times theorem prover too weak. 2685 trivial. 0 not checked. [2019-11-20 07:26:10,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 07:26:10,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-11-20 07:26:10,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941552639] [2019-11-20 07:26:10,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:26:10,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:10,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:26:10,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:26:10,668 INFO L87 Difference]: Start difference. First operand 5878 states and 6137 transitions. Second operand 4 states. [2019-11-20 07:26:11,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:11,325 INFO L93 Difference]: Finished difference Result 11754 states and 12278 transitions. [2019-11-20 07:26:11,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 07:26:11,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1183 [2019-11-20 07:26:11,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:11,340 INFO L225 Difference]: With dead ends: 11754 [2019-11-20 07:26:11,340 INFO L226 Difference]: Without dead ends: 6056 [2019-11-20 07:26:11,346 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1187 GetRequests, 1182 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:26:11,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2019-11-20 07:26:11,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2019-11-20 07:26:11,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6056 states. [2019-11-20 07:26:11,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6304 transitions. [2019-11-20 07:26:11,421 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6304 transitions. Word has length 1183 [2019-11-20 07:26:11,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:11,422 INFO L462 AbstractCegarLoop]: Abstraction has 6056 states and 6304 transitions. [2019-11-20 07:26:11,422 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:26:11,422 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6304 transitions. [2019-11-20 07:26:11,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1605 [2019-11-20 07:26:11,448 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:11,449 INFO L410 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:26:11,653 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:11,653 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:11,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:11,655 INFO L82 PathProgramCache]: Analyzing trace with hash 836341823, now seen corresponding path program 1 times [2019-11-20 07:26:11,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:11,655 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972138026] [2019-11-20 07:26:11,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:14,649 INFO L134 CoverageAnalysis]: Checked inductivity of 8329 backedges. 2654 proven. 0 refuted. 0 times theorem prover too weak. 5675 trivial. 0 not checked. [2019-11-20 07:26:14,649 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972138026] [2019-11-20 07:26:14,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:26:14,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 07:26:14,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141457856] [2019-11-20 07:26:14,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 07:26:14,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:14,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 07:26:14,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:26:14,652 INFO L87 Difference]: Start difference. First operand 6056 states and 6304 transitions. Second operand 7 states. [2019-11-20 07:26:15,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:15,460 INFO L93 Difference]: Finished difference Result 12052 states and 12547 transitions. [2019-11-20 07:26:15,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 07:26:15,460 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1604 [2019-11-20 07:26:15,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:15,470 INFO L225 Difference]: With dead ends: 12052 [2019-11-20 07:26:15,471 INFO L226 Difference]: Without dead ends: 6056 [2019-11-20 07:26:15,477 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:26:15,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2019-11-20 07:26:15,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2019-11-20 07:26:15,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6056 states. [2019-11-20 07:26:15,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6297 transitions. [2019-11-20 07:26:15,551 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6297 transitions. Word has length 1604 [2019-11-20 07:26:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:15,552 INFO L462 AbstractCegarLoop]: Abstraction has 6056 states and 6297 transitions. [2019-11-20 07:26:15,552 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 07:26:15,552 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6297 transitions. [2019-11-20 07:26:15,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1636 [2019-11-20 07:26:15,578 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:15,579 INFO L410 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:26:15,579 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:15,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:15,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1212840288, now seen corresponding path program 1 times [2019-11-20 07:26:15,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:15,580 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104975524] [2019-11-20 07:26:15,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:17,398 INFO L134 CoverageAnalysis]: Checked inductivity of 8526 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 8046 trivial. 0 not checked. [2019-11-20 07:26:17,398 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104975524] [2019-11-20 07:26:17,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:26:17,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 07:26:17,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011293197] [2019-11-20 07:26:17,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:26:17,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:17,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:26:17,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:26:17,401 INFO L87 Difference]: Start difference. First operand 6056 states and 6297 transitions. Second operand 4 states. [2019-11-20 07:26:18,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:18,082 INFO L93 Difference]: Finished difference Result 11932 states and 12413 transitions. [2019-11-20 07:26:18,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 07:26:18,084 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1635 [2019-11-20 07:26:18,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:18,093 INFO L225 Difference]: With dead ends: 11932 [2019-11-20 07:26:18,093 INFO L226 Difference]: Without dead ends: 6056 [2019-11-20 07:26:18,099 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 07:26:18,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2019-11-20 07:26:18,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2019-11-20 07:26:18,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6056 states. [2019-11-20 07:26:18,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6270 transitions. [2019-11-20 07:26:18,169 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6270 transitions. Word has length 1635 [2019-11-20 07:26:18,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:18,171 INFO L462 AbstractCegarLoop]: Abstraction has 6056 states and 6270 transitions. [2019-11-20 07:26:18,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:26:18,171 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6270 transitions. [2019-11-20 07:26:18,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1672 [2019-11-20 07:26:18,198 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:18,199 INFO L410 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:26:18,200 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:18,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:18,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1342838487, now seen corresponding path program 1 times [2019-11-20 07:26:18,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:18,201 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734839138] [2019-11-20 07:26:18,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:21,388 INFO L134 CoverageAnalysis]: Checked inductivity of 8572 backedges. 2675 proven. 0 refuted. 0 times theorem prover too weak. 5897 trivial. 0 not checked. [2019-11-20 07:26:21,388 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734839138] [2019-11-20 07:26:21,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:26:21,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 07:26:21,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120277242] [2019-11-20 07:26:21,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 07:26:21,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:21,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 07:26:21,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:26:21,390 INFO L87 Difference]: Start difference. First operand 6056 states and 6270 transitions. Second operand 7 states. [2019-11-20 07:26:22,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:22,258 INFO L93 Difference]: Finished difference Result 12052 states and 12479 transitions. [2019-11-20 07:26:22,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 07:26:22,258 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1671 [2019-11-20 07:26:22,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:22,263 INFO L225 Difference]: With dead ends: 12052 [2019-11-20 07:26:22,263 INFO L226 Difference]: Without dead ends: 6056 [2019-11-20 07:26:22,266 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:26:22,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2019-11-20 07:26:22,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2019-11-20 07:26:22,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6056 states. [2019-11-20 07:26:22,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6266 transitions. [2019-11-20 07:26:22,313 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6266 transitions. Word has length 1671 [2019-11-20 07:26:22,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:22,315 INFO L462 AbstractCegarLoop]: Abstraction has 6056 states and 6266 transitions. [2019-11-20 07:26:22,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 07:26:22,315 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6266 transitions. [2019-11-20 07:26:22,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1730 [2019-11-20 07:26:22,342 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:22,343 INFO L410 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:26:22,343 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:22,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:22,344 INFO L82 PathProgramCache]: Analyzing trace with hash 19375012, now seen corresponding path program 1 times [2019-11-20 07:26:22,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:22,345 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753461259] [2019-11-20 07:26:22,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:25,456 INFO L134 CoverageAnalysis]: Checked inductivity of 9775 backedges. 6624 proven. 30 refuted. 0 times theorem prover too weak. 3121 trivial. 0 not checked. [2019-11-20 07:26:25,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753461259] [2019-11-20 07:26:25,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743752458] [2019-11-20 07:26:25,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:25,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 2089 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 07:26:25,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:28,396 INFO L134 CoverageAnalysis]: Checked inductivity of 9775 backedges. 2962 proven. 0 refuted. 0 times theorem prover too weak. 6813 trivial. 0 not checked. [2019-11-20 07:26:28,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 07:26:28,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2019-11-20 07:26:28,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929976901] [2019-11-20 07:26:28,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:26:28,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:28,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:26:28,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:26:28,399 INFO L87 Difference]: Start difference. First operand 6056 states and 6266 transitions. Second operand 4 states. [2019-11-20 07:26:29,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:29,107 INFO L93 Difference]: Finished difference Result 12288 states and 12719 transitions. [2019-11-20 07:26:29,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 07:26:29,108 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1729 [2019-11-20 07:26:29,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:29,112 INFO L225 Difference]: With dead ends: 12288 [2019-11-20 07:26:29,112 INFO L226 Difference]: Without dead ends: 6412 [2019-11-20 07:26:29,115 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1738 GetRequests, 1729 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-11-20 07:26:29,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2019-11-20 07:26:29,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 6056. [2019-11-20 07:26:29,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6056 states. [2019-11-20 07:26:29,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6260 transitions. [2019-11-20 07:26:29,164 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6260 transitions. Word has length 1729 [2019-11-20 07:26:29,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:29,165 INFO L462 AbstractCegarLoop]: Abstraction has 6056 states and 6260 transitions. [2019-11-20 07:26:29,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:26:29,165 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6260 transitions. [2019-11-20 07:26:29,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1818 [2019-11-20 07:26:29,187 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:29,188 INFO L410 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:26:29,392 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:29,392 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:29,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:29,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1727618608, now seen corresponding path program 1 times [2019-11-20 07:26:29,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:29,393 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54065486] [2019-11-20 07:26:29,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:31,602 INFO L134 CoverageAnalysis]: Checked inductivity of 10935 backedges. 2784 proven. 0 refuted. 0 times theorem prover too weak. 8151 trivial. 0 not checked. [2019-11-20 07:26:31,602 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54065486] [2019-11-20 07:26:31,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:26:31,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 07:26:31,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463568999] [2019-11-20 07:26:31,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:26:31,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:31,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:26:31,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:26:31,606 INFO L87 Difference]: Start difference. First operand 6056 states and 6260 transitions. Second operand 5 states. [2019-11-20 07:26:32,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:32,570 INFO L93 Difference]: Finished difference Result 14246 states and 14781 transitions. [2019-11-20 07:26:32,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 07:26:32,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1817 [2019-11-20 07:26:32,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:32,577 INFO L225 Difference]: With dead ends: 14246 [2019-11-20 07:26:32,577 INFO L226 Difference]: Without dead ends: 8370 [2019-11-20 07:26:32,580 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:26:32,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8370 states. [2019-11-20 07:26:32,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8370 to 6768. [2019-11-20 07:26:32,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6768 states. [2019-11-20 07:26:32,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7050 transitions. [2019-11-20 07:26:32,647 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7050 transitions. Word has length 1817 [2019-11-20 07:26:32,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:32,649 INFO L462 AbstractCegarLoop]: Abstraction has 6768 states and 7050 transitions. [2019-11-20 07:26:32,649 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:26:32,649 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7050 transitions. [2019-11-20 07:26:32,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1961 [2019-11-20 07:26:32,677 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:32,678 INFO L410 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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 07:26:32,678 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:32,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:32,679 INFO L82 PathProgramCache]: Analyzing trace with hash 798478165, now seen corresponding path program 1 times [2019-11-20 07:26:32,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:32,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874905861] [2019-11-20 07:26:32,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:36,708 INFO L134 CoverageAnalysis]: Checked inductivity of 12664 backedges. 4301 proven. 0 refuted. 0 times theorem prover too weak. 8363 trivial. 0 not checked. [2019-11-20 07:26:36,708 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874905861] [2019-11-20 07:26:36,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:26:36,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 07:26:36,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980418771] [2019-11-20 07:26:36,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 07:26:36,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:36,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 07:26:36,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:26:36,710 INFO L87 Difference]: Start difference. First operand 6768 states and 7050 transitions. Second operand 7 states. [2019-11-20 07:26:37,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:37,382 INFO L93 Difference]: Finished difference Result 13337 states and 13885 transitions. [2019-11-20 07:26:37,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 07:26:37,389 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1960 [2019-11-20 07:26:37,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:37,394 INFO L225 Difference]: With dead ends: 13337 [2019-11-20 07:26:37,394 INFO L226 Difference]: Without dead ends: 6412 [2019-11-20 07:26:37,397 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:26:37,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2019-11-20 07:26:37,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 6412. [2019-11-20 07:26:37,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6412 states. [2019-11-20 07:26:37,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6412 states to 6412 states and 6665 transitions. [2019-11-20 07:26:37,470 INFO L78 Accepts]: Start accepts. Automaton has 6412 states and 6665 transitions. Word has length 1960 [2019-11-20 07:26:37,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:37,471 INFO L462 AbstractCegarLoop]: Abstraction has 6412 states and 6665 transitions. [2019-11-20 07:26:37,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 07:26:37,471 INFO L276 IsEmpty]: Start isEmpty. Operand 6412 states and 6665 transitions. [2019-11-20 07:26:37,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1988 [2019-11-20 07:26:37,497 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:37,498 INFO L410 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:26:37,498 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:37,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:37,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1196899044, now seen corresponding path program 1 times [2019-11-20 07:26:37,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:37,499 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935551732] [2019-11-20 07:26:37,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:41,373 INFO L134 CoverageAnalysis]: Checked inductivity of 12745 backedges. 4293 proven. 0 refuted. 0 times theorem prover too weak. 8452 trivial. 0 not checked. [2019-11-20 07:26:41,373 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935551732] [2019-11-20 07:26:41,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:26:41,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 07:26:41,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586447455] [2019-11-20 07:26:41,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 07:26:41,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:41,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 07:26:41,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:26:41,375 INFO L87 Difference]: Start difference. First operand 6412 states and 6665 transitions. Second operand 7 states. [2019-11-20 07:26:41,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:41,940 INFO L93 Difference]: Finished difference Result 12791 states and 13295 transitions. [2019-11-20 07:26:41,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 07:26:41,942 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1987 [2019-11-20 07:26:41,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:41,946 INFO L225 Difference]: With dead ends: 12791 [2019-11-20 07:26:41,946 INFO L226 Difference]: Without dead ends: 6234 [2019-11-20 07:26:41,949 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-20 07:26:41,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2019-11-20 07:26:42,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 6234. [2019-11-20 07:26:42,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6234 states. [2019-11-20 07:26:42,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 6464 transitions. [2019-11-20 07:26:42,019 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 6464 transitions. Word has length 1987 [2019-11-20 07:26:42,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:42,021 INFO L462 AbstractCegarLoop]: Abstraction has 6234 states and 6464 transitions. [2019-11-20 07:26:42,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 07:26:42,021 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 6464 transitions. [2019-11-20 07:26:42,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2019 [2019-11-20 07:26:42,048 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:42,049 INFO L410 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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 07:26:42,050 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:42,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:42,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1233211586, now seen corresponding path program 1 times [2019-11-20 07:26:42,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:42,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644142677] [2019-11-20 07:26:42,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:47,999 INFO L134 CoverageAnalysis]: Checked inductivity of 13824 backedges. 9262 proven. 695 refuted. 0 times theorem prover too weak. 3867 trivial. 0 not checked. [2019-11-20 07:26:47,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644142677] [2019-11-20 07:26:48,000 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493731533] [2019-11-20 07:26:48,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:48,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 2442 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 07:26:48,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:26:48,459 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 07:26:53,417 INFO L134 CoverageAnalysis]: Checked inductivity of 13824 backedges. 9347 proven. 184 refuted. 0 times theorem prover too weak. 4293 trivial. 0 not checked. [2019-11-20 07:26:53,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:26:53,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2019-11-20 07:26:53,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469315747] [2019-11-20 07:26:53,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 07:26:53,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:53,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 07:26:53,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-11-20 07:26:53,422 INFO L87 Difference]: Start difference. First operand 6234 states and 6464 transitions. Second operand 9 states. [2019-11-20 07:26:55,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:55,187 INFO L93 Difference]: Finished difference Result 12915 states and 13377 transitions. [2019-11-20 07:26:55,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-20 07:26:55,188 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 2018 [2019-11-20 07:26:55,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:55,194 INFO L225 Difference]: With dead ends: 12915 [2019-11-20 07:26:55,194 INFO L226 Difference]: Without dead ends: 6683 [2019-11-20 07:26:55,197 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2029 GetRequests, 2016 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2019-11-20 07:26:55,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6683 states. [2019-11-20 07:26:55,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6683 to 5878. [2019-11-20 07:26:55,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5878 states. [2019-11-20 07:26:55,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6023 transitions. [2019-11-20 07:26:55,255 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6023 transitions. Word has length 2018 [2019-11-20 07:26:55,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:55,256 INFO L462 AbstractCegarLoop]: Abstraction has 5878 states and 6023 transitions. [2019-11-20 07:26:55,256 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 07:26:55,257 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6023 transitions. [2019-11-20 07:26:55,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2031 [2019-11-20 07:26:55,280 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:55,281 INFO L410 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:26:55,482 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:26:55,482 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:55,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:55,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1944323812, now seen corresponding path program 1 times [2019-11-20 07:26:55,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:55,483 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357851837] [2019-11-20 07:26:55,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:26:59,122 INFO L134 CoverageAnalysis]: Checked inductivity of 13982 backedges. 4475 proven. 0 refuted. 0 times theorem prover too weak. 9507 trivial. 0 not checked. [2019-11-20 07:26:59,122 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357851837] [2019-11-20 07:26:59,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:26:59,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 07:26:59,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492907031] [2019-11-20 07:26:59,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:26:59,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:26:59,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:26:59,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:26:59,124 INFO L87 Difference]: Start difference. First operand 5878 states and 6023 transitions. Second operand 4 states. [2019-11-20 07:26:59,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:26:59,595 INFO L93 Difference]: Finished difference Result 11588 states and 11869 transitions. [2019-11-20 07:26:59,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 07:26:59,595 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2030 [2019-11-20 07:26:59,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:26:59,599 INFO L225 Difference]: With dead ends: 11588 [2019-11-20 07:26:59,600 INFO L226 Difference]: Without dead ends: 5700 [2019-11-20 07:26:59,603 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:26:59,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2019-11-20 07:26:59,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2019-11-20 07:26:59,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5700 states. [2019-11-20 07:26:59,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 5833 transitions. [2019-11-20 07:26:59,654 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 5833 transitions. Word has length 2030 [2019-11-20 07:26:59,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:26:59,655 INFO L462 AbstractCegarLoop]: Abstraction has 5700 states and 5833 transitions. [2019-11-20 07:26:59,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:26:59,655 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 5833 transitions. [2019-11-20 07:26:59,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2120 [2019-11-20 07:26:59,679 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:26:59,680 INFO L410 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 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 07:26:59,680 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:26:59,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:26:59,680 INFO L82 PathProgramCache]: Analyzing trace with hash 2140269625, now seen corresponding path program 1 times [2019-11-20 07:26:59,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:26:59,681 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616131896] [2019-11-20 07:26:59,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:26:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:27:00,658 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 19 [2019-11-20 07:27:04,140 INFO L134 CoverageAnalysis]: Checked inductivity of 14529 backedges. 3210 proven. 0 refuted. 0 times theorem prover too weak. 11319 trivial. 0 not checked. [2019-11-20 07:27:04,140 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616131896] [2019-11-20 07:27:04,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:27:04,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 07:27:04,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465675087] [2019-11-20 07:27:04,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:27:04,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:27:04,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:27:04,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:27:04,143 INFO L87 Difference]: Start difference. First operand 5700 states and 5833 transitions. Second operand 5 states. [2019-11-20 07:27:04,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:27:04,943 INFO L93 Difference]: Finished difference Result 11396 states and 11663 transitions. [2019-11-20 07:27:04,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 07:27:04,944 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 2119 [2019-11-20 07:27:04,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:27:04,945 INFO L225 Difference]: With dead ends: 11396 [2019-11-20 07:27:04,945 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 07:27:04,949 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:27:04,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 07:27:04,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 07:27:04,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 07:27:04,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 07:27:04,950 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2119 [2019-11-20 07:27:04,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:27:04,951 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:27:04,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:27:04,951 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 07:27:04,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 07:27:04,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 07:27:05,354 WARN L191 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 292 [2019-11-20 07:27:05,687 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 292 [2019-11-20 07:27:07,352 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 259 DAG size of output: 113 [2019-11-20 07:27:09,020 WARN L191 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 259 DAG size of output: 113 [2019-11-20 07:27:09,023 INFO L444 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2019-11-20 07:27:09,023 INFO L444 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2019-11-20 07:27:09,023 INFO L444 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,023 INFO L444 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,023 INFO L444 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,023 INFO L444 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2019-11-20 07:27:09,023 INFO L444 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2019-11-20 07:27:09,023 INFO L444 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2019-11-20 07:27:09,023 INFO L444 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2019-11-20 07:27:09,024 INFO L444 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2019-11-20 07:27:09,024 INFO L444 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2019-11-20 07:27:09,024 INFO L444 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2019-11-20 07:27:09,024 INFO L444 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2019-11-20 07:27:09,024 INFO L444 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,024 INFO L444 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,024 INFO L444 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,024 INFO L444 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2019-11-20 07:27:09,024 INFO L444 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2019-11-20 07:27:09,024 INFO L444 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2019-11-20 07:27:09,024 INFO L444 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2019-11-20 07:27:09,024 INFO L444 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2019-11-20 07:27:09,025 INFO L444 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2019-11-20 07:27:09,025 INFO L444 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2019-11-20 07:27:09,025 INFO L444 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2019-11-20 07:27:09,025 INFO L444 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,025 INFO L444 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,025 INFO L444 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,025 INFO L444 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2019-11-20 07:27:09,025 INFO L444 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2019-11-20 07:27:09,025 INFO L444 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2019-11-20 07:27:09,025 INFO L444 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-11-20 07:27:09,025 INFO L444 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2019-11-20 07:27:09,025 INFO L444 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2019-11-20 07:27:09,026 INFO L444 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2019-11-20 07:27:09,026 INFO L444 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2019-11-20 07:27:09,026 INFO L444 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2019-11-20 07:27:09,026 INFO L444 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,026 INFO L444 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,026 INFO L444 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,026 INFO L444 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2019-11-20 07:27:09,026 INFO L444 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2019-11-20 07:27:09,026 INFO L444 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2019-11-20 07:27:09,026 INFO L444 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2019-11-20 07:27:09,026 INFO L444 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2019-11-20 07:27:09,026 INFO L444 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2019-11-20 07:27:09,026 INFO L444 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2019-11-20 07:27:09,027 INFO L444 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,027 INFO L444 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,027 INFO L444 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,027 INFO L444 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2019-11-20 07:27:09,027 INFO L444 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2019-11-20 07:27:09,027 INFO L444 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2019-11-20 07:27:09,027 INFO L444 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2019-11-20 07:27:09,027 INFO L444 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2019-11-20 07:27:09,027 INFO L444 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2019-11-20 07:27:09,027 INFO L444 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2019-11-20 07:27:09,027 INFO L444 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2019-11-20 07:27:09,027 INFO L444 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2019-11-20 07:27:09,028 INFO L444 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2019-11-20 07:27:09,029 INFO L444 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2019-11-20 07:27:09,030 INFO L444 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2019-11-20 07:27:09,030 INFO L444 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,030 INFO L444 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,030 INFO L444 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,030 INFO L444 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2019-11-20 07:27:09,030 INFO L444 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2019-11-20 07:27:09,030 INFO L444 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2019-11-20 07:27:09,030 INFO L444 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2019-11-20 07:27:09,030 INFO L444 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2019-11-20 07:27:09,030 INFO L444 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2019-11-20 07:27:09,030 INFO L444 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2019-11-20 07:27:09,030 INFO L444 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2019-11-20 07:27:09,031 INFO L444 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,031 INFO L444 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,031 INFO L444 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,031 INFO L444 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2019-11-20 07:27:09,031 INFO L444 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2019-11-20 07:27:09,031 INFO L444 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2019-11-20 07:27:09,031 INFO L444 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2019-11-20 07:27:09,031 INFO L444 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2019-11-20 07:27:09,031 INFO L444 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2019-11-20 07:27:09,031 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 07:27:09,032 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2019-11-20 07:27:09,032 INFO L444 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2019-11-20 07:27:09,032 INFO L444 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2019-11-20 07:27:09,032 INFO L444 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,032 INFO L444 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,032 INFO L444 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,033 INFO L444 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2019-11-20 07:27:09,033 INFO L444 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2019-11-20 07:27:09,033 INFO L444 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2019-11-20 07:27:09,033 INFO L444 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2019-11-20 07:27:09,033 INFO L444 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2019-11-20 07:27:09,033 INFO L444 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2019-11-20 07:27:09,033 INFO L444 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2019-11-20 07:27:09,034 INFO L444 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2019-11-20 07:27:09,034 INFO L444 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,034 INFO L444 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,034 INFO L444 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,034 INFO L444 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2019-11-20 07:27:09,034 INFO L444 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2019-11-20 07:27:09,034 INFO L444 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2019-11-20 07:27:09,035 INFO L444 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2019-11-20 07:27:09,035 INFO L444 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2019-11-20 07:27:09,035 INFO L444 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2019-11-20 07:27:09,035 INFO L444 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2019-11-20 07:27:09,035 INFO L444 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2019-11-20 07:27:09,035 INFO L444 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,035 INFO L444 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,036 INFO L444 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2019-11-20 07:27:09,036 INFO L444 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2019-11-20 07:27:09,036 INFO L444 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2019-11-20 07:27:09,036 INFO L444 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2019-11-20 07:27:09,036 INFO L444 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2019-11-20 07:27:09,036 INFO L444 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2019-11-20 07:27:09,036 INFO L444 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2019-11-20 07:27:09,037 INFO L444 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2019-11-20 07:27:09,037 INFO L444 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,037 INFO L444 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,037 INFO L444 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2019-11-20 07:27:09,037 INFO L444 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2019-11-20 07:27:09,037 INFO L444 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2019-11-20 07:27:09,037 INFO L444 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2019-11-20 07:27:09,037 INFO L444 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2019-11-20 07:27:09,038 INFO L444 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2019-11-20 07:27:09,038 INFO L444 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,038 INFO L444 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,038 INFO L440 ceAbstractionStarter]: At program point L871(lines 20 872) the Hoare annotation is: (let ((.cse23 (<= ~a21~0 6)) (.cse21 (< 11 ~a12~0)) (.cse7 (<= 10 ~a21~0)) (.cse19 (<= ~a15~0 8))) (let ((.cse27 (+ ~a12~0 43)) (.cse24 (or (and .cse21 .cse19 .cse23) (and .cse21 .cse7 .cse19))) (.cse5 (= ~a24~0 1))) (let ((.cse0 (and .cse21 .cse5 .cse19)) (.cse15 (= ~a15~0 5)) (.cse13 (and .cse24 .cse5)) (.cse14 (= ~a21~0 10)) (.cse3 (<= ~a12~0 586307)) (.cse22 (and (<= .cse27 0) .cse19 .cse23)) (.cse12 (= ~a21~0 7)) (.cse16 (= ~a21~0 6)) (.cse4 (= ~a15~0 6)) (.cse9 (= 9 ~a15~0)) (.cse1 (= 7 ~a15~0)) (.cse17 (<= (+ ~a12~0 44) 0)) (.cse18 (= 8 ~a21~0)) (.cse20 (and .cse7 .cse5 .cse19)) (.cse2 (= ~a21~0 9)) (.cse11 (= 8 ~a15~0)) (.cse6 (<= ~a12~0 11)) (.cse8 (< 0 .cse27)) (.cse10 (let ((.cse26 (div (+ ~a12~0 (- 600066)) 5))) (or (and (let ((.cse25 (+ ~a12~0 4))) (= (* 5 (div .cse25 5)) .cse25)) (<= (+ .cse26 13) 0)) (<= (+ .cse26 14) 0))))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2 .cse4) (and .cse5 .cse6 .cse2 .cse4) (and .cse7 .cse5 .cse8 .cse9 .cse10) (and .cse11 .cse5 .cse12 .cse6 .cse8) (and .cse13 .cse14 .cse15) (and .cse16 .cse5 .cse15) (and .cse17 .cse18 .cse5 .cse19) (and .cse17 .cse20) (and (<= ~a12~0 80) .cse21 .cse5 .cse19) (and .cse17 .cse5 .cse12 .cse19) (and (and .cse22 .cse5) .cse17) (and (= ~a15~0 7) .cse13 .cse14) (and .cse21 .cse5 .cse3 .cse9 .cse23) (and .cse22 (<= (+ ~a12~0 9352) 0)) (and (or (and .cse18 .cse5 .cse8 .cse9) (and .cse21 .cse5 .cse12 .cse9)) .cse10) (and (and (and .cse7 .cse5) .cse9) .cse17) (and .cse17 .cse18 .cse5 .cse9) (and .cse16 .cse24 .cse5 .cse4) (and .cse5 (< 80 ~a12~0) .cse9 .cse2 .cse10) (and .cse5 .cse19 .cse23 .cse8 .cse10) (and (and (not .cse1) .cse5 .cse19) .cse17) (and (and (and .cse21 .cse18 .cse19) .cse5) .cse10) (and .cse8 (and .cse6 .cse20)) (and (not (= 5 ULTIMATE.start_calculate_output_~input)) .cse2 .cse11 .cse5 .cse6 .cse8) (and (and (and (= ~a15~0 8) (and .cse21 .cse7)) .cse5) .cse10))))) [2019-11-20 07:27:09,038 INFO L444 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2019-11-20 07:27:09,039 INFO L444 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2019-11-20 07:27:09,039 INFO L444 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2019-11-20 07:27:09,039 INFO L444 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2019-11-20 07:27:09,039 INFO L444 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2019-11-20 07:27:09,039 INFO L444 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2019-11-20 07:27:09,039 INFO L444 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2019-11-20 07:27:09,039 INFO L444 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2019-11-20 07:27:09,039 INFO L444 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,039 INFO L444 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,039 INFO L447 ceAbstractionStarter]: At program point L874(lines 874 890) the Hoare annotation is: true [2019-11-20 07:27:09,039 INFO L444 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2019-11-20 07:27:09,039 INFO L444 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2019-11-20 07:27:09,039 INFO L444 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2019-11-20 07:27:09,039 INFO L444 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2019-11-20 07:27:09,039 INFO L444 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-11-20 07:27:09,040 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,041 INFO L444 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2019-11-20 07:27:09,041 INFO L440 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse23 (<= ~a21~0 6)) (.cse21 (< 11 ~a12~0)) (.cse7 (<= 10 ~a21~0)) (.cse19 (<= ~a15~0 8))) (let ((.cse27 (+ ~a12~0 43)) (.cse24 (or (and .cse21 .cse19 .cse23) (and .cse21 .cse7 .cse19))) (.cse5 (= ~a24~0 1))) (let ((.cse0 (and .cse21 .cse5 .cse19)) (.cse15 (= ~a15~0 5)) (.cse13 (and .cse24 .cse5)) (.cse14 (= ~a21~0 10)) (.cse3 (<= ~a12~0 586307)) (.cse22 (and (<= .cse27 0) .cse19 .cse23)) (.cse12 (= ~a21~0 7)) (.cse16 (= ~a21~0 6)) (.cse4 (= ~a15~0 6)) (.cse9 (= 9 ~a15~0)) (.cse1 (= 7 ~a15~0)) (.cse17 (<= (+ ~a12~0 44) 0)) (.cse18 (= 8 ~a21~0)) (.cse20 (and .cse7 .cse5 .cse19)) (.cse2 (= ~a21~0 9)) (.cse11 (= 8 ~a15~0)) (.cse6 (<= ~a12~0 11)) (.cse8 (< 0 .cse27)) (.cse10 (let ((.cse26 (div (+ ~a12~0 (- 600066)) 5))) (or (and (let ((.cse25 (+ ~a12~0 4))) (= (* 5 (div .cse25 5)) .cse25)) (<= (+ .cse26 13) 0)) (<= (+ .cse26 14) 0))))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2 .cse4) (and .cse5 .cse6 .cse2 .cse4) (and .cse7 .cse5 .cse8 .cse9 .cse10) (and .cse11 .cse5 .cse12 .cse6 .cse8) (and .cse13 .cse14 .cse15) (and .cse16 .cse5 .cse15) (and .cse17 .cse18 .cse5 .cse19) (and .cse17 .cse20) (and (<= ~a12~0 80) .cse21 .cse5 .cse19) (and .cse17 .cse5 .cse12 .cse19) (and (and .cse22 .cse5) .cse17) (and (= ~a15~0 7) .cse13 .cse14) (and .cse21 .cse5 .cse3 .cse9 .cse23) (and .cse22 (<= (+ ~a12~0 9352) 0)) (and (or (and .cse18 .cse5 .cse8 .cse9) (and .cse21 .cse5 .cse12 .cse9)) .cse10) (and (and (and .cse7 .cse5) .cse9) .cse17) (and .cse17 .cse18 .cse5 .cse9) (and .cse16 .cse24 .cse5 .cse4) (and .cse5 (< 80 ~a12~0) .cse9 .cse2 .cse10) (and .cse5 .cse19 .cse23 .cse8 .cse10) (and (and (not .cse1) .cse5 .cse19) .cse17) (and (and (and .cse21 .cse18 .cse19) .cse5) .cse10) (and .cse8 (and .cse6 .cse20)) (and (not (= 5 ULTIMATE.start_calculate_output_~input)) .cse2 .cse11 .cse5 .cse6 .cse8) (and (and (and (= ~a15~0 8) (and .cse21 .cse7)) .cse5) .cse10))))) [2019-11-20 07:27:09,041 INFO L444 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2019-11-20 07:27:09,041 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2019-11-20 07:27:09,041 INFO L444 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2019-11-20 07:27:09,041 INFO L444 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2019-11-20 07:27:09,041 INFO L444 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-20 07:27:09,041 INFO L444 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2019-11-20 07:27:09,041 INFO L444 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2019-11-20 07:27:09,041 INFO L444 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,042 INFO L444 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2019-11-20 07:27:09,043 INFO L444 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2019-11-20 07:27:09,044 INFO L444 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2019-11-20 07:27:09,044 INFO L444 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2019-11-20 07:27:09,044 INFO L444 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2019-11-20 07:27:09,044 INFO L444 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2019-11-20 07:27:09,044 INFO L444 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2019-11-20 07:27:09,044 INFO L444 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2019-11-20 07:27:09,044 INFO L444 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,044 INFO L444 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,044 INFO L444 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2019-11-20 07:27:09,044 INFO L444 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2019-11-20 07:27:09,044 INFO L444 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2019-11-20 07:27:09,044 INFO L444 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2019-11-20 07:27:09,044 INFO L444 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2019-11-20 07:27:09,044 INFO L444 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2019-11-20 07:27:09,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:27:09 BoogieIcfgContainer [2019-11-20 07:27:09,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 07:27:09,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:27:09,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:27:09,084 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:27:09,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:25:30" (3/4) ... [2019-11-20 07:27:09,088 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 07:27:09,131 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 07:27:09,133 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 07:27:09,311 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_487d197e-d5fe-45ec-95da-dd465195f639/bin/uautomizer/witness.graphml [2019-11-20 07:27:09,311 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:27:09,312 INFO L168 Benchmark]: Toolchain (without parser) took 102153.55 ms. Allocated memory was 1.0 GB in the beginning and 5.1 GB in the end (delta: 4.1 GB). Free memory was 939.3 MB in the beginning and 1.3 GB in the end (delta: -347.4 MB). Peak memory consumption was 3.8 GB. Max. memory is 11.5 GB. [2019-11-20 07:27:09,313 INFO L168 Benchmark]: CDTParser took 0.18 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 07:27:09,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 879.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -217.2 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-11-20 07:27:09,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 07:27:09,314 INFO L168 Benchmark]: Boogie Preprocessor took 103.54 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 07:27:09,314 INFO L168 Benchmark]: RCFGBuilder took 1799.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 131.0 MB). Peak memory consumption was 131.0 MB. Max. memory is 11.5 GB. [2019-11-20 07:27:09,315 INFO L168 Benchmark]: TraceAbstraction took 99050.10 ms. Allocated memory was 1.2 GB in the beginning and 5.1 GB in the end (delta: 3.9 GB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -387.8 MB). Peak memory consumption was 3.5 GB. Max. memory is 11.5 GB. [2019-11-20 07:27:09,315 INFO L168 Benchmark]: Witness Printer took 227.10 ms. Allocated memory is still 5.1 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 110.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. [2019-11-20 07:27:09,317 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 879.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -217.2 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 103.54 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 1799.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 131.0 MB). Peak memory consumption was 131.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 99050.10 ms. Allocated memory was 1.2 GB in the beginning and 5.1 GB in the end (delta: 3.9 GB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -387.8 MB). Peak memory consumption was 3.5 GB. Max. memory is 11.5 GB. * Witness Printer took 227.10 ms. Allocated memory is still 5.1 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 110.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((11 < a12 && a24 == 1) && a15 <= 8) && 7 == a15) && a21 == 9) || (((((11 < a12 && a24 == 1) && a15 <= 8) && a12 <= 586307) && a21 == 9) && a15 == 6)) || (((a24 == 1 && a12 <= 11) && a21 == 9) && a15 == 6)) || ((((10 <= a21 && a24 == 1) && 0 < a12 + 43) && 9 == a15) && ((5 * ((a12 + 4) / 5) == a12 + 4 && (a12 + -600066) / 5 + 13 <= 0) || (a12 + -600066) / 5 + 14 <= 0))) || ((((8 == a15 && a24 == 1) && a21 == 7) && a12 <= 11) && 0 < a12 + 43)) || ((((((11 < a12 && a15 <= 8) && a21 <= 6) || ((11 < a12 && 10 <= a21) && a15 <= 8)) && a24 == 1) && a21 == 10) && a15 == 5)) || ((a21 == 6 && a24 == 1) && a15 == 5)) || (((a12 + 44 <= 0 && 8 == a21) && a24 == 1) && a15 <= 8)) || (a12 + 44 <= 0 && (10 <= a21 && a24 == 1) && a15 <= 8)) || (((a12 <= 80 && 11 < a12) && a24 == 1) && a15 <= 8)) || (((a12 + 44 <= 0 && a24 == 1) && a21 == 7) && a15 <= 8)) || ((((a12 + 43 <= 0 && a15 <= 8) && a21 <= 6) && a24 == 1) && a12 + 44 <= 0)) || ((a15 == 7 && (((11 < a12 && a15 <= 8) && a21 <= 6) || ((11 < a12 && 10 <= a21) && a15 <= 8)) && a24 == 1) && a21 == 10)) || ((((11 < a12 && a24 == 1) && a12 <= 586307) && 9 == a15) && a21 <= 6)) || (((a12 + 43 <= 0 && a15 <= 8) && a21 <= 6) && a12 + 9352 <= 0)) || (((((8 == a21 && a24 == 1) && 0 < a12 + 43) && 9 == a15) || (((11 < a12 && a24 == 1) && a21 == 7) && 9 == a15)) && ((5 * ((a12 + 4) / 5) == a12 + 4 && (a12 + -600066) / 5 + 13 <= 0) || (a12 + -600066) / 5 + 14 <= 0))) || (((10 <= a21 && a24 == 1) && 9 == a15) && a12 + 44 <= 0)) || (((a12 + 44 <= 0 && 8 == a21) && a24 == 1) && 9 == a15)) || (((a21 == 6 && (((11 < a12 && a15 <= 8) && a21 <= 6) || ((11 < a12 && 10 <= a21) && a15 <= 8))) && a24 == 1) && a15 == 6)) || ((((a24 == 1 && 80 < a12) && 9 == a15) && a21 == 9) && ((5 * ((a12 + 4) / 5) == a12 + 4 && (a12 + -600066) / 5 + 13 <= 0) || (a12 + -600066) / 5 + 14 <= 0))) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && 0 < a12 + 43) && ((5 * ((a12 + 4) / 5) == a12 + 4 && (a12 + -600066) / 5 + 13 <= 0) || (a12 + -600066) / 5 + 14 <= 0))) || (((!(7 == a15) && a24 == 1) && a15 <= 8) && a12 + 44 <= 0)) || ((((11 < a12 && 8 == a21) && a15 <= 8) && a24 == 1) && ((5 * ((a12 + 4) / 5) == a12 + 4 && (a12 + -600066) / 5 + 13 <= 0) || (a12 + -600066) / 5 + 14 <= 0))) || (0 < a12 + 43 && a12 <= 11 && (10 <= a21 && a24 == 1) && a15 <= 8)) || (((((!(5 == input) && a21 == 9) && 8 == a15) && a24 == 1) && a12 <= 11) && 0 < a12 + 43)) || (((a15 == 8 && 11 < a12 && 10 <= a21) && a24 == 1) && ((5 * ((a12 + 4) / 5) == a12 + 4 && (a12 + -600066) / 5 + 13 <= 0) || (a12 + -600066) / 5 + 14 <= 0)) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((11 < a12 && a24 == 1) && a15 <= 8) && 7 == a15) && a21 == 9) || (((((11 < a12 && a24 == 1) && a15 <= 8) && a12 <= 586307) && a21 == 9) && a15 == 6)) || (((a24 == 1 && a12 <= 11) && a21 == 9) && a15 == 6)) || ((((10 <= a21 && a24 == 1) && 0 < a12 + 43) && 9 == a15) && ((5 * ((a12 + 4) / 5) == a12 + 4 && (a12 + -600066) / 5 + 13 <= 0) || (a12 + -600066) / 5 + 14 <= 0))) || ((((8 == a15 && a24 == 1) && a21 == 7) && a12 <= 11) && 0 < a12 + 43)) || ((((((11 < a12 && a15 <= 8) && a21 <= 6) || ((11 < a12 && 10 <= a21) && a15 <= 8)) && a24 == 1) && a21 == 10) && a15 == 5)) || ((a21 == 6 && a24 == 1) && a15 == 5)) || (((a12 + 44 <= 0 && 8 == a21) && a24 == 1) && a15 <= 8)) || (a12 + 44 <= 0 && (10 <= a21 && a24 == 1) && a15 <= 8)) || (((a12 <= 80 && 11 < a12) && a24 == 1) && a15 <= 8)) || (((a12 + 44 <= 0 && a24 == 1) && a21 == 7) && a15 <= 8)) || ((((a12 + 43 <= 0 && a15 <= 8) && a21 <= 6) && a24 == 1) && a12 + 44 <= 0)) || ((a15 == 7 && (((11 < a12 && a15 <= 8) && a21 <= 6) || ((11 < a12 && 10 <= a21) && a15 <= 8)) && a24 == 1) && a21 == 10)) || ((((11 < a12 && a24 == 1) && a12 <= 586307) && 9 == a15) && a21 <= 6)) || (((a12 + 43 <= 0 && a15 <= 8) && a21 <= 6) && a12 + 9352 <= 0)) || (((((8 == a21 && a24 == 1) && 0 < a12 + 43) && 9 == a15) || (((11 < a12 && a24 == 1) && a21 == 7) && 9 == a15)) && ((5 * ((a12 + 4) / 5) == a12 + 4 && (a12 + -600066) / 5 + 13 <= 0) || (a12 + -600066) / 5 + 14 <= 0))) || (((10 <= a21 && a24 == 1) && 9 == a15) && a12 + 44 <= 0)) || (((a12 + 44 <= 0 && 8 == a21) && a24 == 1) && 9 == a15)) || (((a21 == 6 && (((11 < a12 && a15 <= 8) && a21 <= 6) || ((11 < a12 && 10 <= a21) && a15 <= 8))) && a24 == 1) && a15 == 6)) || ((((a24 == 1 && 80 < a12) && 9 == a15) && a21 == 9) && ((5 * ((a12 + 4) / 5) == a12 + 4 && (a12 + -600066) / 5 + 13 <= 0) || (a12 + -600066) / 5 + 14 <= 0))) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && 0 < a12 + 43) && ((5 * ((a12 + 4) / 5) == a12 + 4 && (a12 + -600066) / 5 + 13 <= 0) || (a12 + -600066) / 5 + 14 <= 0))) || (((!(7 == a15) && a24 == 1) && a15 <= 8) && a12 + 44 <= 0)) || ((((11 < a12 && 8 == a21) && a15 <= 8) && a24 == 1) && ((5 * ((a12 + 4) / 5) == a12 + 4 && (a12 + -600066) / 5 + 13 <= 0) || (a12 + -600066) / 5 + 14 <= 0))) || (0 < a12 + 43 && a12 <= 11 && (10 <= a21 && a24 == 1) && a15 <= 8)) || (((((!(5 == input) && a21 == 9) && 8 == a15) && a24 == 1) && a12 <= 11) && 0 < a12 + 43)) || (((a15 == 8 && 11 < a12 && 10 <= a21) && a24 == 1) && ((5 * ((a12 + 4) / 5) == a12 + 4 && (a12 + -600066) / 5 + 13 <= 0) || (a12 + -600066) / 5 + 14 <= 0)) - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Result: SAFE, OverallTime: 98.9s, OverallIterations: 26, TraceHistogramMax: 18, AutomataDifference: 26.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, HoareTripleCheckerStatistics: 1329 SDtfs, 6784 SDslu, 373 SDs, 0 SdLazy, 23913 SolverSat, 2220 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9588 GetRequests, 9446 SyntacticMatches, 13 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6768occurred in iteration=21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 26 MinimizatonAttempts, 6965 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 98 NumberOfFragments, 1341 HoareAnnotationTreeSize, 3 FomulaSimplifications, 51596 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 3 FomulaSimplificationsInter, 21964 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 22.9s InterpolantComputationTime, 37508 NumberOfCodeBlocks, 37508 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 37471 ConstructedInterpolants, 0 QuantifiedInterpolants, 170070112 SizeOfPredicates, 20 NumberOfNonLiveVariables, 11640 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 37 InterpolantComputations, 23 PerfectInterpolantSequences, 172138/174003 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...