./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label54.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label54.c -s /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4950cd8c1f780721b5eded288194da6fcc96a674 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:20:59,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:20:59,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:20:59,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:20:59,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:20:59,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:20:59,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:20:59,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:20:59,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:20:59,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:20:59,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:20:59,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:20:59,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:20:59,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:20:59,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:20:59,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:20:59,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:20:59,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:20:59,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:20:59,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:20:59,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:20:59,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:20:59,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:20:59,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:20:59,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:20:59,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:20:59,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:20:59,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:20:59,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:20:59,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:20:59,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:20:59,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:20:59,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:20:59,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:20:59,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:20:59,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:20:59,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:20:59,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:20:59,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:20:59,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:20:59,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:20:59,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:20:59,795 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:20:59,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:20:59,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:20:59,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:20:59,798 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:20:59,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:20:59,798 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:20:59,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:20:59,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:20:59,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:20:59,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:20:59,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:20:59,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:20:59,800 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:20:59,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:20:59,800 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:20:59,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:20:59,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:20:59,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:20:59,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:20:59,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:20:59,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:20:59,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:20:59,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:20:59,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:20:59,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:20:59,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:20:59,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:20:59,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:20:59,804 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4950cd8c1f780721b5eded288194da6fcc96a674 [2020-11-29 20:21:00,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:21:00,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:21:00,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:21:00,203 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:21:00,204 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:21:00,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem11_label54.c [2020-11-29 20:21:00,295 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/bin/uautomizer/data/090c78928/933f9d3928e34f7897e989b0dfc79a5a/FLAGbedc374e3 [2020-11-29 20:21:01,062 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:21:01,065 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/sv-benchmarks/c/eca-rers2012/Problem11_label54.c [2020-11-29 20:21:01,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/bin/uautomizer/data/090c78928/933f9d3928e34f7897e989b0dfc79a5a/FLAGbedc374e3 [2020-11-29 20:21:01,236 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/bin/uautomizer/data/090c78928/933f9d3928e34f7897e989b0dfc79a5a [2020-11-29 20:21:01,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:21:01,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:21:01,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:21:01,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:21:01,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:21:01,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:21:01" (1/1) ... [2020-11-29 20:21:01,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a679356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:01, skipping insertion in model container [2020-11-29 20:21:01,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:21:01" (1/1) ... [2020-11-29 20:21:01,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:21:01,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:21:01,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:21:01,946 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:21:02,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:21:02,107 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:21:02,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:02 WrapperNode [2020-11-29 20:21:02,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:21:02,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:21:02,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:21:02,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:21:02,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:02" (1/1) ... [2020-11-29 20:21:02,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:02" (1/1) ... [2020-11-29 20:21:02,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:21:02,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:21:02,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:21:02,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:21:02,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:02" (1/1) ... [2020-11-29 20:21:02,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:02" (1/1) ... [2020-11-29 20:21:02,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:02" (1/1) ... [2020-11-29 20:21:02,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:02" (1/1) ... [2020-11-29 20:21:02,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:02" (1/1) ... [2020-11-29 20:21:02,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:02" (1/1) ... [2020-11-29 20:21:02,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:02" (1/1) ... [2020-11-29 20:21:02,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:21:02,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:21:02,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:21:02,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:21:02,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/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 [2020-11-29 20:21:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:21:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:21:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:21:02,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:21:04,741 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:21:04,741 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 20:21:04,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:21:04 BoogieIcfgContainer [2020-11-29 20:21:04,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:21:04,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:21:04,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:21:04,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:21:04,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:21:01" (1/3) ... [2020-11-29 20:21:04,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d31af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:21:04, skipping insertion in model container [2020-11-29 20:21:04,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:02" (2/3) ... [2020-11-29 20:21:04,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d31af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:21:04, skipping insertion in model container [2020-11-29 20:21:04,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:21:04" (3/3) ... [2020-11-29 20:21:04,758 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label54.c [2020-11-29 20:21:04,775 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:21:04,781 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:21:04,808 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 20:21:04,847 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:21:04,847 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:21:04,847 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:21:04,847 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:21:04,847 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:21:04,847 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:21:04,848 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:21:04,848 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:21:04,883 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-11-29 20:21:04,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-29 20:21:04,892 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:04,893 INFO L422 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] [2020-11-29 20:21:04,893 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:04,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:04,907 INFO L82 PathProgramCache]: Analyzing trace with hash 2088660649, now seen corresponding path program 1 times [2020-11-29 20:21:04,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:04,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168499314] [2020-11-29 20:21:04,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:05,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:05,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168499314] [2020-11-29 20:21:05,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:05,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:21:05,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026474929] [2020-11-29 20:21:05,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:05,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:05,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:05,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:05,282 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-11-29 20:21:07,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:07,207 INFO L93 Difference]: Finished difference Result 762 states and 1346 transitions. [2020-11-29 20:21:07,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:07,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-11-29 20:21:07,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:07,227 INFO L225 Difference]: With dead ends: 762 [2020-11-29 20:21:07,227 INFO L226 Difference]: Without dead ends: 413 [2020-11-29 20:21:07,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:07,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-11-29 20:21:07,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2020-11-29 20:21:07,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-11-29 20:21:07,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2020-11-29 20:21:07,307 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 37 [2020-11-29 20:21:07,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:07,307 INFO L481 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2020-11-29 20:21:07,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:07,308 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2020-11-29 20:21:07,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-29 20:21:07,313 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:07,313 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:07,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:21:07,314 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:07,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:07,315 INFO L82 PathProgramCache]: Analyzing trace with hash -2038332818, now seen corresponding path program 1 times [2020-11-29 20:21:07,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:07,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139482561] [2020-11-29 20:21:07,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:07,486 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:07,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139482561] [2020-11-29 20:21:07,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:07,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:21:07,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593048177] [2020-11-29 20:21:07,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:07,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:07,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:07,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:07,490 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand 3 states. [2020-11-29 20:21:08,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:08,706 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2020-11-29 20:21:08,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:08,707 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-29 20:21:08,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:08,715 INFO L225 Difference]: With dead ends: 1211 [2020-11-29 20:21:08,715 INFO L226 Difference]: Without dead ends: 800 [2020-11-29 20:21:08,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:08,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-11-29 20:21:08,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2020-11-29 20:21:08,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-11-29 20:21:08,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1084 transitions. [2020-11-29 20:21:08,794 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1084 transitions. Word has length 105 [2020-11-29 20:21:08,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:08,794 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 1084 transitions. [2020-11-29 20:21:08,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:08,795 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1084 transitions. [2020-11-29 20:21:08,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-29 20:21:08,799 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:08,800 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:08,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:21:08,800 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:08,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:08,801 INFO L82 PathProgramCache]: Analyzing trace with hash 2139788688, now seen corresponding path program 1 times [2020-11-29 20:21:08,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:08,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814770392] [2020-11-29 20:21:08,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:09,052 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:09,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814770392] [2020-11-29 20:21:09,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:09,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:21:09,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228646003] [2020-11-29 20:21:09,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:09,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:09,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:09,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:09,056 INFO L87 Difference]: Start difference. First operand 789 states and 1084 transitions. Second operand 3 states. [2020-11-29 20:21:10,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:10,308 INFO L93 Difference]: Finished difference Result 2314 states and 3184 transitions. [2020-11-29 20:21:10,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:10,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-11-29 20:21:10,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:10,318 INFO L225 Difference]: With dead ends: 2314 [2020-11-29 20:21:10,318 INFO L226 Difference]: Without dead ends: 1527 [2020-11-29 20:21:10,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:10,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2020-11-29 20:21:10,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2020-11-29 20:21:10,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-11-29 20:21:10,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1857 transitions. [2020-11-29 20:21:10,378 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1857 transitions. Word has length 106 [2020-11-29 20:21:10,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:10,379 INFO L481 AbstractCegarLoop]: Abstraction has 1526 states and 1857 transitions. [2020-11-29 20:21:10,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:10,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1857 transitions. [2020-11-29 20:21:10,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-11-29 20:21:10,388 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:10,389 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:10,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:21:10,389 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:10,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:10,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1292287019, now seen corresponding path program 1 times [2020-11-29 20:21:10,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:10,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312936116] [2020-11-29 20:21:10,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:10,582 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:10,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312936116] [2020-11-29 20:21:10,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:10,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:10,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630784480] [2020-11-29 20:21:10,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:10,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:10,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:10,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:10,589 INFO L87 Difference]: Start difference. First operand 1526 states and 1857 transitions. Second operand 3 states. [2020-11-29 20:21:12,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:12,055 INFO L93 Difference]: Finished difference Result 3257 states and 4126 transitions. [2020-11-29 20:21:12,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:12,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-11-29 20:21:12,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:12,070 INFO L225 Difference]: With dead ends: 3257 [2020-11-29 20:21:12,070 INFO L226 Difference]: Without dead ends: 1917 [2020-11-29 20:21:12,074 INFO L677 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 [2020-11-29 20:21:12,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2020-11-29 20:21:12,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1914. [2020-11-29 20:21:12,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2020-11-29 20:21:12,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2385 transitions. [2020-11-29 20:21:12,125 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2385 transitions. Word has length 164 [2020-11-29 20:21:12,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:12,127 INFO L481 AbstractCegarLoop]: Abstraction has 1914 states and 2385 transitions. [2020-11-29 20:21:12,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:12,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2385 transitions. [2020-11-29 20:21:12,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-11-29 20:21:12,142 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:12,142 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:12,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 20:21:12,142 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:12,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:12,143 INFO L82 PathProgramCache]: Analyzing trace with hash 445772911, now seen corresponding path program 1 times [2020-11-29 20:21:12,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:12,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291806779] [2020-11-29 20:21:12,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:12,500 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:12,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291806779] [2020-11-29 20:21:12,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:12,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:12,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271376657] [2020-11-29 20:21:12,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:12,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:12,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:12,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:12,504 INFO L87 Difference]: Start difference. First operand 1914 states and 2385 transitions. Second operand 3 states. [2020-11-29 20:21:14,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:14,034 INFO L93 Difference]: Finished difference Result 4579 states and 5797 transitions. [2020-11-29 20:21:14,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:14,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-11-29 20:21:14,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:14,058 INFO L225 Difference]: With dead ends: 4579 [2020-11-29 20:21:14,058 INFO L226 Difference]: Without dead ends: 2851 [2020-11-29 20:21:14,061 INFO L677 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 [2020-11-29 20:21:14,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2020-11-29 20:21:14,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2469. [2020-11-29 20:21:14,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2469 states. [2020-11-29 20:21:14,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2469 states to 2469 states and 3054 transitions. [2020-11-29 20:21:14,130 INFO L78 Accepts]: Start accepts. Automaton has 2469 states and 3054 transitions. Word has length 217 [2020-11-29 20:21:14,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:14,131 INFO L481 AbstractCegarLoop]: Abstraction has 2469 states and 3054 transitions. [2020-11-29 20:21:14,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:14,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2469 states and 3054 transitions. [2020-11-29 20:21:14,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-11-29 20:21:14,136 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:14,136 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:14,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 20:21:14,137 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:14,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:14,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1837654959, now seen corresponding path program 1 times [2020-11-29 20:21:14,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:14,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387366738] [2020-11-29 20:21:14,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:14,395 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-11-29 20:21:14,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387366738] [2020-11-29 20:21:14,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:14,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:14,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924630354] [2020-11-29 20:21:14,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:14,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:14,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:14,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:14,398 INFO L87 Difference]: Start difference. First operand 2469 states and 3054 transitions. Second operand 3 states. [2020-11-29 20:21:15,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:15,739 INFO L93 Difference]: Finished difference Result 6246 states and 7852 transitions. [2020-11-29 20:21:15,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:15,739 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-11-29 20:21:15,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:15,762 INFO L225 Difference]: With dead ends: 6246 [2020-11-29 20:21:15,763 INFO L226 Difference]: Without dead ends: 3594 [2020-11-29 20:21:15,767 INFO L677 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 [2020-11-29 20:21:15,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3594 states. [2020-11-29 20:21:15,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3594 to 3594. [2020-11-29 20:21:15,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3594 states. [2020-11-29 20:21:15,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 4514 transitions. [2020-11-29 20:21:15,886 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 4514 transitions. Word has length 218 [2020-11-29 20:21:15,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:15,891 INFO L481 AbstractCegarLoop]: Abstraction has 3594 states and 4514 transitions. [2020-11-29 20:21:15,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:15,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 4514 transitions. [2020-11-29 20:21:15,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-11-29 20:21:15,896 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:15,896 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:15,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 20:21:15,897 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:15,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:15,898 INFO L82 PathProgramCache]: Analyzing trace with hash -609813004, now seen corresponding path program 1 times [2020-11-29 20:21:15,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:15,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209122187] [2020-11-29 20:21:15,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-11-29 20:21:16,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209122187] [2020-11-29 20:21:16,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:16,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:16,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541932573] [2020-11-29 20:21:16,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:16,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:16,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:16,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:16,114 INFO L87 Difference]: Start difference. First operand 3594 states and 4514 transitions. Second operand 3 states. [2020-11-29 20:21:17,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:17,555 INFO L93 Difference]: Finished difference Result 8120 states and 10304 transitions. [2020-11-29 20:21:17,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:17,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2020-11-29 20:21:17,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:17,585 INFO L225 Difference]: With dead ends: 8120 [2020-11-29 20:21:17,585 INFO L226 Difference]: Without dead ends: 4528 [2020-11-29 20:21:17,591 INFO L677 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 [2020-11-29 20:21:17,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4528 states. [2020-11-29 20:21:17,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4528 to 4330. [2020-11-29 20:21:17,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4330 states. [2020-11-29 20:21:17,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4330 states to 4330 states and 5341 transitions. [2020-11-29 20:21:17,696 INFO L78 Accepts]: Start accepts. Automaton has 4330 states and 5341 transitions. Word has length 219 [2020-11-29 20:21:17,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:17,696 INFO L481 AbstractCegarLoop]: Abstraction has 4330 states and 5341 transitions. [2020-11-29 20:21:17,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:17,697 INFO L276 IsEmpty]: Start isEmpty. Operand 4330 states and 5341 transitions. [2020-11-29 20:21:17,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-11-29 20:21:17,702 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:17,703 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:17,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 20:21:17,703 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:17,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:17,704 INFO L82 PathProgramCache]: Analyzing trace with hash -2125944538, now seen corresponding path program 1 times [2020-11-29 20:21:17,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:17,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362300412] [2020-11-29 20:21:17,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:17,975 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-11-29 20:21:17,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362300412] [2020-11-29 20:21:17,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:17,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:17,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527197079] [2020-11-29 20:21:17,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:17,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:17,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:17,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:17,978 INFO L87 Difference]: Start difference. First operand 4330 states and 5341 transitions. Second operand 3 states. [2020-11-29 20:21:19,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:19,465 INFO L93 Difference]: Finished difference Result 9786 states and 12100 transitions. [2020-11-29 20:21:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:19,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-11-29 20:21:19,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:19,500 INFO L225 Difference]: With dead ends: 9786 [2020-11-29 20:21:19,500 INFO L226 Difference]: Without dead ends: 5458 [2020-11-29 20:21:19,506 INFO L677 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 [2020-11-29 20:21:19,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5458 states. [2020-11-29 20:21:19,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5458 to 5250. [2020-11-29 20:21:19,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5250 states. [2020-11-29 20:21:19,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5250 states to 5250 states and 6449 transitions. [2020-11-29 20:21:19,625 INFO L78 Accepts]: Start accepts. Automaton has 5250 states and 6449 transitions. Word has length 239 [2020-11-29 20:21:19,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:19,626 INFO L481 AbstractCegarLoop]: Abstraction has 5250 states and 6449 transitions. [2020-11-29 20:21:19,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:19,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5250 states and 6449 transitions. [2020-11-29 20:21:19,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-11-29 20:21:19,632 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:19,633 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 20:21:19,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 20:21:19,633 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:19,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:19,634 INFO L82 PathProgramCache]: Analyzing trace with hash 413640341, now seen corresponding path program 1 times [2020-11-29 20:21:19,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:19,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996310191] [2020-11-29 20:21:19,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:19,842 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-11-29 20:21:19,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996310191] [2020-11-29 20:21:19,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:19,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:19,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514168883] [2020-11-29 20:21:19,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:19,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:19,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:19,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:19,851 INFO L87 Difference]: Start difference. First operand 5250 states and 6449 transitions. Second operand 3 states. [2020-11-29 20:21:21,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:21,294 INFO L93 Difference]: Finished difference Result 10508 states and 12916 transitions. [2020-11-29 20:21:21,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:21,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2020-11-29 20:21:21,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:21,322 INFO L225 Difference]: With dead ends: 10508 [2020-11-29 20:21:21,322 INFO L226 Difference]: Without dead ends: 5260 [2020-11-29 20:21:21,329 INFO L677 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 [2020-11-29 20:21:21,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5260 states. [2020-11-29 20:21:21,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5260 to 5249. [2020-11-29 20:21:21,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5249 states. [2020-11-29 20:21:21,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 6260 transitions. [2020-11-29 20:21:21,455 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 6260 transitions. Word has length 246 [2020-11-29 20:21:21,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:21,456 INFO L481 AbstractCegarLoop]: Abstraction has 5249 states and 6260 transitions. [2020-11-29 20:21:21,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:21,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 6260 transitions. [2020-11-29 20:21:21,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-11-29 20:21:21,465 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:21,465 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:21,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 20:21:21,466 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:21,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:21,467 INFO L82 PathProgramCache]: Analyzing trace with hash -653497250, now seen corresponding path program 1 times [2020-11-29 20:21:21,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:21,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954441867] [2020-11-29 20:21:21,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:21,719 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-11-29 20:21:21,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954441867] [2020-11-29 20:21:21,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:21,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:21,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993050783] [2020-11-29 20:21:21,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:21,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:21,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:21,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:21,722 INFO L87 Difference]: Start difference. First operand 5249 states and 6260 transitions. Second operand 3 states. [2020-11-29 20:21:22,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:22,928 INFO L93 Difference]: Finished difference Result 11423 states and 13746 transitions. [2020-11-29 20:21:22,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:22,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2020-11-29 20:21:22,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:22,963 INFO L225 Difference]: With dead ends: 11423 [2020-11-29 20:21:22,963 INFO L226 Difference]: Without dead ends: 6176 [2020-11-29 20:21:22,969 INFO L677 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 [2020-11-29 20:21:22,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6176 states. [2020-11-29 20:21:23,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6176 to 5249. [2020-11-29 20:21:23,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5249 states. [2020-11-29 20:21:23,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 6260 transitions. [2020-11-29 20:21:23,057 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 6260 transitions. Word has length 269 [2020-11-29 20:21:23,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:23,058 INFO L481 AbstractCegarLoop]: Abstraction has 5249 states and 6260 transitions. [2020-11-29 20:21:23,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:23,058 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 6260 transitions. [2020-11-29 20:21:23,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-11-29 20:21:23,066 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:23,067 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:23,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 20:21:23,067 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:23,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:23,068 INFO L82 PathProgramCache]: Analyzing trace with hash 732607874, now seen corresponding path program 1 times [2020-11-29 20:21:23,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:23,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072718571] [2020-11-29 20:21:23,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:23,313 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-11-29 20:21:23,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072718571] [2020-11-29 20:21:23,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:23,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:23,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254894578] [2020-11-29 20:21:23,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:23,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:23,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:23,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:23,317 INFO L87 Difference]: Start difference. First operand 5249 states and 6260 transitions. Second operand 3 states. [2020-11-29 20:21:24,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:24,649 INFO L93 Difference]: Finished difference Result 14366 states and 17225 transitions. [2020-11-29 20:21:24,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:24,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2020-11-29 20:21:24,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:24,673 INFO L225 Difference]: With dead ends: 14366 [2020-11-29 20:21:24,674 INFO L226 Difference]: Without dead ends: 9119 [2020-11-29 20:21:24,681 INFO L677 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 [2020-11-29 20:21:24,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9119 states. [2020-11-29 20:21:24,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9119 to 9113. [2020-11-29 20:21:24,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9113 states. [2020-11-29 20:21:24,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9113 states to 9113 states and 10805 transitions. [2020-11-29 20:21:24,879 INFO L78 Accepts]: Start accepts. Automaton has 9113 states and 10805 transitions. Word has length 272 [2020-11-29 20:21:24,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:24,880 INFO L481 AbstractCegarLoop]: Abstraction has 9113 states and 10805 transitions. [2020-11-29 20:21:24,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:24,881 INFO L276 IsEmpty]: Start isEmpty. Operand 9113 states and 10805 transitions. [2020-11-29 20:21:24,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-11-29 20:21:24,894 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:24,895 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:24,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 20:21:24,895 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:24,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:24,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1167172548, now seen corresponding path program 1 times [2020-11-29 20:21:24,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:24,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747349359] [2020-11-29 20:21:24,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:25,123 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2020-11-29 20:21:25,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747349359] [2020-11-29 20:21:25,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:25,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:25,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510266306] [2020-11-29 20:21:25,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:25,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:25,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:25,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:25,126 INFO L87 Difference]: Start difference. First operand 9113 states and 10805 transitions. Second operand 3 states. [2020-11-29 20:21:26,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:26,455 INFO L93 Difference]: Finished difference Result 20247 states and 24184 transitions. [2020-11-29 20:21:26,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:26,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 310 [2020-11-29 20:21:26,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:26,480 INFO L225 Difference]: With dead ends: 20247 [2020-11-29 20:21:26,481 INFO L226 Difference]: Without dead ends: 11136 [2020-11-29 20:21:26,492 INFO L677 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 [2020-11-29 20:21:26,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11136 states. [2020-11-29 20:21:26,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11136 to 8738. [2020-11-29 20:21:26,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8738 states. [2020-11-29 20:21:26,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8738 states to 8738 states and 10415 transitions. [2020-11-29 20:21:26,650 INFO L78 Accepts]: Start accepts. Automaton has 8738 states and 10415 transitions. Word has length 310 [2020-11-29 20:21:26,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:26,651 INFO L481 AbstractCegarLoop]: Abstraction has 8738 states and 10415 transitions. [2020-11-29 20:21:26,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:26,652 INFO L276 IsEmpty]: Start isEmpty. Operand 8738 states and 10415 transitions. [2020-11-29 20:21:26,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-11-29 20:21:26,667 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:26,667 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 20:21:26,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 20:21:26,668 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:26,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:26,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1792052449, now seen corresponding path program 1 times [2020-11-29 20:21:26,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:26,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724168179] [2020-11-29 20:21:26,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:27,500 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2020-11-29 20:21:27,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724168179] [2020-11-29 20:21:27,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:27,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:27,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242248304] [2020-11-29 20:21:27,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:21:27,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:27,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:21:27,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:21:27,502 INFO L87 Difference]: Start difference. First operand 8738 states and 10415 transitions. Second operand 4 states. [2020-11-29 20:21:29,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:29,224 INFO L93 Difference]: Finished difference Result 22093 states and 26287 transitions. [2020-11-29 20:21:29,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:21:29,225 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 320 [2020-11-29 20:21:29,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:29,251 INFO L225 Difference]: With dead ends: 22093 [2020-11-29 20:21:29,251 INFO L226 Difference]: Without dead ends: 12607 [2020-11-29 20:21:29,262 INFO L677 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 [2020-11-29 20:21:29,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12607 states. [2020-11-29 20:21:29,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12607 to 11501. [2020-11-29 20:21:29,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11501 states. [2020-11-29 20:21:29,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11501 states to 11501 states and 13328 transitions. [2020-11-29 20:21:29,505 INFO L78 Accepts]: Start accepts. Automaton has 11501 states and 13328 transitions. Word has length 320 [2020-11-29 20:21:29,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:29,506 INFO L481 AbstractCegarLoop]: Abstraction has 11501 states and 13328 transitions. [2020-11-29 20:21:29,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:21:29,506 INFO L276 IsEmpty]: Start isEmpty. Operand 11501 states and 13328 transitions. [2020-11-29 20:21:29,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2020-11-29 20:21:29,531 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:29,532 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:29,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 20:21:29,533 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:29,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:29,533 INFO L82 PathProgramCache]: Analyzing trace with hash -2009874217, now seen corresponding path program 1 times [2020-11-29 20:21:29,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:29,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69735971] [2020-11-29 20:21:29,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:29,976 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-11-29 20:21:29,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69735971] [2020-11-29 20:21:29,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:29,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:21:29,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003601271] [2020-11-29 20:21:29,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:21:29,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:29,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:21:29,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:21:29,979 INFO L87 Difference]: Start difference. First operand 11501 states and 13328 transitions. Second operand 4 states. [2020-11-29 20:21:32,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:32,254 INFO L93 Difference]: Finished difference Result 32047 states and 37241 transitions. [2020-11-29 20:21:32,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:21:32,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 394 [2020-11-29 20:21:32,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:32,293 INFO L225 Difference]: With dead ends: 32047 [2020-11-29 20:21:32,293 INFO L226 Difference]: Without dead ends: 20180 [2020-11-29 20:21:32,305 INFO L677 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 [2020-11-29 20:21:32,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20180 states. [2020-11-29 20:21:32,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20180 to 18524. [2020-11-29 20:21:32,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18524 states. [2020-11-29 20:21:32,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18524 states to 18524 states and 21371 transitions. [2020-11-29 20:21:32,639 INFO L78 Accepts]: Start accepts. Automaton has 18524 states and 21371 transitions. Word has length 394 [2020-11-29 20:21:32,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:32,640 INFO L481 AbstractCegarLoop]: Abstraction has 18524 states and 21371 transitions. [2020-11-29 20:21:32,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:21:32,640 INFO L276 IsEmpty]: Start isEmpty. Operand 18524 states and 21371 transitions. [2020-11-29 20:21:32,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2020-11-29 20:21:32,664 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:32,665 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:32,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 20:21:32,666 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:32,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:32,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1210679123, now seen corresponding path program 1 times [2020-11-29 20:21:32,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:32,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947586163] [2020-11-29 20:21:32,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:33,114 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 448 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-29 20:21:33,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947586163] [2020-11-29 20:21:33,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:33,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:33,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211597655] [2020-11-29 20:21:33,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:21:33,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:33,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:21:33,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:21:33,116 INFO L87 Difference]: Start difference. First operand 18524 states and 21371 transitions. Second operand 4 states. [2020-11-29 20:21:35,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:35,362 INFO L93 Difference]: Finished difference Result 48877 states and 56405 transitions. [2020-11-29 20:21:35,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:21:35,362 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 447 [2020-11-29 20:21:35,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:35,408 INFO L225 Difference]: With dead ends: 48877 [2020-11-29 20:21:35,408 INFO L226 Difference]: Without dead ends: 30355 [2020-11-29 20:21:35,418 INFO L677 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 [2020-11-29 20:21:35,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30355 states. [2020-11-29 20:21:35,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30355 to 26469. [2020-11-29 20:21:35,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26469 states. [2020-11-29 20:21:35,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26469 states to 26469 states and 30496 transitions. [2020-11-29 20:21:35,821 INFO L78 Accepts]: Start accepts. Automaton has 26469 states and 30496 transitions. Word has length 447 [2020-11-29 20:21:35,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:35,822 INFO L481 AbstractCegarLoop]: Abstraction has 26469 states and 30496 transitions. [2020-11-29 20:21:35,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:21:35,822 INFO L276 IsEmpty]: Start isEmpty. Operand 26469 states and 30496 transitions. [2020-11-29 20:21:35,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2020-11-29 20:21:35,844 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:35,845 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:35,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-29 20:21:35,845 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:35,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:35,846 INFO L82 PathProgramCache]: Analyzing trace with hash -414379792, now seen corresponding path program 1 times [2020-11-29 20:21:35,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:35,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404632049] [2020-11-29 20:21:35,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:36,329 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-11-29 20:21:36,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404632049] [2020-11-29 20:21:36,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:36,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:21:36,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173005061] [2020-11-29 20:21:36,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:36,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:36,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:36,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:36,333 INFO L87 Difference]: Start difference. First operand 26469 states and 30496 transitions. Second operand 3 states. [2020-11-29 20:21:37,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:37,038 INFO L93 Difference]: Finished difference Result 52001 states and 59907 transitions. [2020-11-29 20:21:37,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:37,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 469 [2020-11-29 20:21:37,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:37,068 INFO L225 Difference]: With dead ends: 52001 [2020-11-29 20:21:37,069 INFO L226 Difference]: Without dead ends: 25534 [2020-11-29 20:21:37,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:37,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25534 states. [2020-11-29 20:21:37,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25534 to 25524. [2020-11-29 20:21:37,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25524 states. [2020-11-29 20:21:37,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25524 states to 25524 states and 29381 transitions. [2020-11-29 20:21:37,611 INFO L78 Accepts]: Start accepts. Automaton has 25524 states and 29381 transitions. Word has length 469 [2020-11-29 20:21:37,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:37,612 INFO L481 AbstractCegarLoop]: Abstraction has 25524 states and 29381 transitions. [2020-11-29 20:21:37,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:37,612 INFO L276 IsEmpty]: Start isEmpty. Operand 25524 states and 29381 transitions. [2020-11-29 20:21:37,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2020-11-29 20:21:37,636 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:37,637 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:37,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 20:21:37,637 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:37,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:37,638 INFO L82 PathProgramCache]: Analyzing trace with hash -463269014, now seen corresponding path program 1 times [2020-11-29 20:21:37,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:37,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753362708] [2020-11-29 20:21:37,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:38,092 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-11-29 20:21:38,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753362708] [2020-11-29 20:21:38,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:38,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:38,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062961115] [2020-11-29 20:21:38,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:38,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:38,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:38,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:38,095 INFO L87 Difference]: Start difference. First operand 25524 states and 29381 transitions. Second operand 3 states. [2020-11-29 20:21:39,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:39,213 INFO L93 Difference]: Finished difference Result 43268 states and 49663 transitions. [2020-11-29 20:21:39,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:39,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 481 [2020-11-29 20:21:39,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:39,231 INFO L225 Difference]: With dead ends: 43268 [2020-11-29 20:21:39,231 INFO L226 Difference]: Without dead ends: 17192 [2020-11-29 20:21:39,244 INFO L677 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 [2020-11-29 20:21:39,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17192 states. [2020-11-29 20:21:39,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17192 to 14981. [2020-11-29 20:21:39,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14981 states. [2020-11-29 20:21:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14981 states to 14981 states and 16809 transitions. [2020-11-29 20:21:39,478 INFO L78 Accepts]: Start accepts. Automaton has 14981 states and 16809 transitions. Word has length 481 [2020-11-29 20:21:39,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:39,478 INFO L481 AbstractCegarLoop]: Abstraction has 14981 states and 16809 transitions. [2020-11-29 20:21:39,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:39,479 INFO L276 IsEmpty]: Start isEmpty. Operand 14981 states and 16809 transitions. [2020-11-29 20:21:39,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2020-11-29 20:21:39,499 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:39,501 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:39,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 20:21:39,501 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:39,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:39,503 INFO L82 PathProgramCache]: Analyzing trace with hash -950408368, now seen corresponding path program 1 times [2020-11-29 20:21:39,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:39,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146943096] [2020-11-29 20:21:39,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:40,624 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 347 proven. 116 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2020-11-29 20:21:40,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146943096] [2020-11-29 20:21:40,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290430390] [2020-11-29 20:21:40,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/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 [2020-11-29 20:21:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:40,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:21:40,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:21:41,404 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 428 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2020-11-29 20:21:41,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:21:41,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2020-11-29 20:21:41,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272327282] [2020-11-29 20:21:41,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:41,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:41,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:41,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:21:41,413 INFO L87 Difference]: Start difference. First operand 14981 states and 16809 transitions. Second operand 3 states. [2020-11-29 20:21:43,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:43,041 INFO L93 Difference]: Finished difference Result 30880 states and 34648 transitions. [2020-11-29 20:21:43,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:43,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 514 [2020-11-29 20:21:43,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:43,105 INFO L225 Difference]: With dead ends: 30880 [2020-11-29 20:21:43,105 INFO L226 Difference]: Without dead ends: 15531 [2020-11-29 20:21:43,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:21:43,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15531 states. [2020-11-29 20:21:43,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15531 to 13314. [2020-11-29 20:21:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13314 states. [2020-11-29 20:21:43,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13314 states to 13314 states and 14885 transitions. [2020-11-29 20:21:43,444 INFO L78 Accepts]: Start accepts. Automaton has 13314 states and 14885 transitions. Word has length 514 [2020-11-29 20:21:43,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:43,445 INFO L481 AbstractCegarLoop]: Abstraction has 13314 states and 14885 transitions. [2020-11-29 20:21:43,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:43,445 INFO L276 IsEmpty]: Start isEmpty. Operand 13314 states and 14885 transitions. [2020-11-29 20:21:43,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2020-11-29 20:21:43,463 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:43,463 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:43,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-11-29 20:21:43,680 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:43,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:43,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1244295703, now seen corresponding path program 1 times [2020-11-29 20:21:43,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:43,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879917663] [2020-11-29 20:21:43,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:44,533 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2020-11-29 20:21:44,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879917663] [2020-11-29 20:21:44,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:44,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:21:44,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309262008] [2020-11-29 20:21:44,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:21:44,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:44,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:21:44,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:21:44,535 INFO L87 Difference]: Start difference. First operand 13314 states and 14885 transitions. Second operand 4 states. [2020-11-29 20:21:46,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:46,938 INFO L93 Difference]: Finished difference Result 31610 states and 35390 transitions. [2020-11-29 20:21:46,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:21:46,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 535 [2020-11-29 20:21:46,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:46,997 INFO L225 Difference]: With dead ends: 31610 [2020-11-29 20:21:46,997 INFO L226 Difference]: Without dead ends: 17930 [2020-11-29 20:21:47,006 INFO L677 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 [2020-11-29 20:21:47,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17930 states. [2020-11-29 20:21:47,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17930 to 13130. [2020-11-29 20:21:47,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13130 states. [2020-11-29 20:21:47,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13130 states to 13130 states and 14697 transitions. [2020-11-29 20:21:47,302 INFO L78 Accepts]: Start accepts. Automaton has 13130 states and 14697 transitions. Word has length 535 [2020-11-29 20:21:47,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:47,303 INFO L481 AbstractCegarLoop]: Abstraction has 13130 states and 14697 transitions. [2020-11-29 20:21:47,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:21:47,303 INFO L276 IsEmpty]: Start isEmpty. Operand 13130 states and 14697 transitions. [2020-11-29 20:21:47,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2020-11-29 20:21:47,317 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:47,317 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:47,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-29 20:21:47,318 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:47,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:47,319 INFO L82 PathProgramCache]: Analyzing trace with hash -915385528, now seen corresponding path program 1 times [2020-11-29 20:21:47,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:47,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032563295] [2020-11-29 20:21:47,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:47,962 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 705 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-11-29 20:21:47,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032563295] [2020-11-29 20:21:47,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:47,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:21:47,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566869094] [2020-11-29 20:21:47,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:21:47,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:47,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:21:47,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:21:47,964 INFO L87 Difference]: Start difference. First operand 13130 states and 14697 transitions. Second operand 4 states. [2020-11-29 20:21:50,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:50,349 INFO L93 Difference]: Finished difference Result 32530 states and 36411 transitions. [2020-11-29 20:21:50,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:21:50,350 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 561 [2020-11-29 20:21:50,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:50,369 INFO L225 Difference]: With dead ends: 32530 [2020-11-29 20:21:50,369 INFO L226 Difference]: Without dead ends: 19402 [2020-11-29 20:21:50,379 INFO L677 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 [2020-11-29 20:21:50,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19402 states. [2020-11-29 20:21:50,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19402 to 15344. [2020-11-29 20:21:50,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15344 states. [2020-11-29 20:21:50,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15344 states to 15344 states and 17069 transitions. [2020-11-29 20:21:50,727 INFO L78 Accepts]: Start accepts. Automaton has 15344 states and 17069 transitions. Word has length 561 [2020-11-29 20:21:50,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:50,727 INFO L481 AbstractCegarLoop]: Abstraction has 15344 states and 17069 transitions. [2020-11-29 20:21:50,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:21:50,728 INFO L276 IsEmpty]: Start isEmpty. Operand 15344 states and 17069 transitions. [2020-11-29 20:21:50,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2020-11-29 20:21:50,737 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:50,738 INFO L422 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2020-11-29 20:21:50,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-29 20:21:50,738 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:50,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:50,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1741519465, now seen corresponding path program 1 times [2020-11-29 20:21:50,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:50,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013082613] [2020-11-29 20:21:50,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:51,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 856 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2020-11-29 20:21:51,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013082613] [2020-11-29 20:21:51,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:51,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:51,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133247292] [2020-11-29 20:21:51,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:51,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:51,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:51,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:51,203 INFO L87 Difference]: Start difference. First operand 15344 states and 17069 transitions. Second operand 3 states. [2020-11-29 20:21:52,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:52,468 INFO L93 Difference]: Finished difference Result 34182 states and 38011 transitions. [2020-11-29 20:21:52,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:52,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 623 [2020-11-29 20:21:52,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:52,493 INFO L225 Difference]: With dead ends: 34182 [2020-11-29 20:21:52,493 INFO L226 Difference]: Without dead ends: 18840 [2020-11-29 20:21:52,504 INFO L677 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 [2020-11-29 20:21:52,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18840 states. [2020-11-29 20:21:52,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18840 to 16998. [2020-11-29 20:21:52,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16998 states. [2020-11-29 20:21:52,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16998 states to 16998 states and 18832 transitions. [2020-11-29 20:21:52,769 INFO L78 Accepts]: Start accepts. Automaton has 16998 states and 18832 transitions. Word has length 623 [2020-11-29 20:21:52,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:52,770 INFO L481 AbstractCegarLoop]: Abstraction has 16998 states and 18832 transitions. [2020-11-29 20:21:52,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:52,770 INFO L276 IsEmpty]: Start isEmpty. Operand 16998 states and 18832 transitions. [2020-11-29 20:21:52,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-11-29 20:21:52,788 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:52,789 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-11-29 20:21:52,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-29 20:21:52,790 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:52,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:52,790 INFO L82 PathProgramCache]: Analyzing trace with hash -139346096, now seen corresponding path program 1 times [2020-11-29 20:21:52,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:52,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891458217] [2020-11-29 20:21:52,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:53,939 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 621 proven. 154 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-11-29 20:21:53,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891458217] [2020-11-29 20:21:53,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72337615] [2020-11-29 20:21:53,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/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 [2020-11-29 20:21:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:54,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 20:21:54,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:21:55,225 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 621 proven. 154 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-11-29 20:21:55,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:21:55,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-29 20:21:55,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166680637] [2020-11-29 20:21:55,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:21:55,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:55,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:21:55,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:21:55,229 INFO L87 Difference]: Start difference. First operand 16998 states and 18832 transitions. Second operand 5 states. [2020-11-29 20:21:57,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:57,957 INFO L93 Difference]: Finished difference Result 34664 states and 38355 transitions. [2020-11-29 20:21:57,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:21:57,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 626 [2020-11-29 20:21:57,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:57,978 INFO L225 Difference]: With dead ends: 34664 [2020-11-29 20:21:57,978 INFO L226 Difference]: Without dead ends: 16932 [2020-11-29 20:21:57,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 626 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:21:58,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16932 states. [2020-11-29 20:21:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16932 to 14965. [2020-11-29 20:21:58,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14965 states. [2020-11-29 20:21:58,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14965 states to 14965 states and 16265 transitions. [2020-11-29 20:21:58,233 INFO L78 Accepts]: Start accepts. Automaton has 14965 states and 16265 transitions. Word has length 626 [2020-11-29 20:21:58,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:58,233 INFO L481 AbstractCegarLoop]: Abstraction has 14965 states and 16265 transitions. [2020-11-29 20:21:58,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:21:58,233 INFO L276 IsEmpty]: Start isEmpty. Operand 14965 states and 16265 transitions. [2020-11-29 20:21:58,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2020-11-29 20:21:58,249 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:58,249 INFO L422 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-11-29 20:21:58,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:21:58,476 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:58,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:58,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1536961575, now seen corresponding path program 1 times [2020-11-29 20:21:58,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:58,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169291712] [2020-11-29 20:21:58,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1343 backedges. 1049 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-11-29 20:21:59,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169291712] [2020-11-29 20:21:59,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:59,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:59,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368251208] [2020-11-29 20:21:59,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:21:59,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:59,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:21:59,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:21:59,390 INFO L87 Difference]: Start difference. First operand 14965 states and 16265 transitions. Second operand 4 states. [2020-11-29 20:22:01,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:22:01,460 INFO L93 Difference]: Finished difference Result 32517 states and 35412 transitions. [2020-11-29 20:22:01,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:22:01,461 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 680 [2020-11-29 20:22:01,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:22:01,483 INFO L225 Difference]: With dead ends: 32517 [2020-11-29 20:22:01,483 INFO L226 Difference]: Without dead ends: 18660 [2020-11-29 20:22:01,493 INFO L677 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 [2020-11-29 20:22:01,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18660 states. [2020-11-29 20:22:01,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18660 to 14965. [2020-11-29 20:22:01,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14965 states. [2020-11-29 20:22:01,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14965 states to 14965 states and 16265 transitions. [2020-11-29 20:22:01,731 INFO L78 Accepts]: Start accepts. Automaton has 14965 states and 16265 transitions. Word has length 680 [2020-11-29 20:22:01,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:22:01,732 INFO L481 AbstractCegarLoop]: Abstraction has 14965 states and 16265 transitions. [2020-11-29 20:22:01,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:22:01,732 INFO L276 IsEmpty]: Start isEmpty. Operand 14965 states and 16265 transitions. [2020-11-29 20:22:01,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2020-11-29 20:22:01,748 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:22:01,749 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-11-29 20:22:01,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-29 20:22:01,749 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:22:01,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:01,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1541354319, now seen corresponding path program 1 times [2020-11-29 20:22:01,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:01,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216729578] [2020-11-29 20:22:01,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:02,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2020-11-29 20:22:02,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216729578] [2020-11-29 20:22:02,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:22:02,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:22:02,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703765857] [2020-11-29 20:22:02,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:22:02,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:22:02,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:22:02,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:22:02,342 INFO L87 Difference]: Start difference. First operand 14965 states and 16265 transitions. Second operand 3 states. [2020-11-29 20:22:03,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:22:03,338 INFO L93 Difference]: Finished difference Result 29374 states and 31942 transitions. [2020-11-29 20:22:03,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:22:03,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 694 [2020-11-29 20:22:03,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:22:03,355 INFO L225 Difference]: With dead ends: 29374 [2020-11-29 20:22:03,355 INFO L226 Difference]: Without dead ends: 15333 [2020-11-29 20:22:03,362 INFO L677 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 [2020-11-29 20:22:03,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15333 states. [2020-11-29 20:22:03,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15333 to 14412. [2020-11-29 20:22:03,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14412 states. [2020-11-29 20:22:03,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14412 states to 14412 states and 15619 transitions. [2020-11-29 20:22:03,565 INFO L78 Accepts]: Start accepts. Automaton has 14412 states and 15619 transitions. Word has length 694 [2020-11-29 20:22:03,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:22:03,566 INFO L481 AbstractCegarLoop]: Abstraction has 14412 states and 15619 transitions. [2020-11-29 20:22:03,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:22:03,566 INFO L276 IsEmpty]: Start isEmpty. Operand 14412 states and 15619 transitions. [2020-11-29 20:22:03,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2020-11-29 20:22:03,576 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:22:03,577 INFO L422 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-11-29 20:22:03,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-29 20:22:03,577 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:22:03,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:03,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1046598697, now seen corresponding path program 1 times [2020-11-29 20:22:03,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:03,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886984210] [2020-11-29 20:22:03,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 954 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2020-11-29 20:22:04,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886984210] [2020-11-29 20:22:04,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:22:04,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:22:04,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317187375] [2020-11-29 20:22:04,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:22:04,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:22:04,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:22:04,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:22:04,267 INFO L87 Difference]: Start difference. First operand 14412 states and 15619 transitions. Second operand 4 states. [2020-11-29 20:22:06,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:22:06,090 INFO L93 Difference]: Finished difference Result 31224 states and 33885 transitions. [2020-11-29 20:22:06,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:22:06,090 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 725 [2020-11-29 20:22:06,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:22:06,104 INFO L225 Difference]: With dead ends: 31224 [2020-11-29 20:22:06,104 INFO L226 Difference]: Without dead ends: 17181 [2020-11-29 20:22:06,110 INFO L677 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 [2020-11-29 20:22:06,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17181 states. [2020-11-29 20:22:06,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17181 to 15890. [2020-11-29 20:22:06,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15890 states. [2020-11-29 20:22:06,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15890 states to 15890 states and 17180 transitions. [2020-11-29 20:22:06,279 INFO L78 Accepts]: Start accepts. Automaton has 15890 states and 17180 transitions. Word has length 725 [2020-11-29 20:22:06,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:22:06,280 INFO L481 AbstractCegarLoop]: Abstraction has 15890 states and 17180 transitions. [2020-11-29 20:22:06,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:22:06,280 INFO L276 IsEmpty]: Start isEmpty. Operand 15890 states and 17180 transitions. [2020-11-29 20:22:06,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 757 [2020-11-29 20:22:06,293 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:22:06,294 INFO L422 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:22:06,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-29 20:22:06,294 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:22:06,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:06,295 INFO L82 PathProgramCache]: Analyzing trace with hash 736823543, now seen corresponding path program 1 times [2020-11-29 20:22:06,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:06,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794055509] [2020-11-29 20:22:06,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:06,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 903 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2020-11-29 20:22:06,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794055509] [2020-11-29 20:22:06,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:22:06,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:22:06,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894772964] [2020-11-29 20:22:06,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:22:06,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:22:06,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:22:06,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:22:06,767 INFO L87 Difference]: Start difference. First operand 15890 states and 17180 transitions. Second operand 3 states. [2020-11-29 20:22:07,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:22:07,831 INFO L93 Difference]: Finished difference Result 31410 states and 34003 transitions. [2020-11-29 20:22:07,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:22:07,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 756 [2020-11-29 20:22:07,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:22:07,845 INFO L225 Difference]: With dead ends: 31410 [2020-11-29 20:22:07,845 INFO L226 Difference]: Without dead ends: 16258 [2020-11-29 20:22:07,852 INFO L677 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 [2020-11-29 20:22:07,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16258 states. [2020-11-29 20:22:08,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16258 to 13306. [2020-11-29 20:22:08,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13306 states. [2020-11-29 20:22:08,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13306 states to 13306 states and 14314 transitions. [2020-11-29 20:22:08,027 INFO L78 Accepts]: Start accepts. Automaton has 13306 states and 14314 transitions. Word has length 756 [2020-11-29 20:22:08,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:22:08,027 INFO L481 AbstractCegarLoop]: Abstraction has 13306 states and 14314 transitions. [2020-11-29 20:22:08,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:22:08,028 INFO L276 IsEmpty]: Start isEmpty. Operand 13306 states and 14314 transitions. [2020-11-29 20:22:08,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 764 [2020-11-29 20:22:08,037 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:22:08,038 INFO L422 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:22:08,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-11-29 20:22:08,038 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:22:08,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:08,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1638161653, now seen corresponding path program 1 times [2020-11-29 20:22:08,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:08,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235024271] [2020-11-29 20:22:08,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:09,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 648 proven. 554 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-11-29 20:22:09,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235024271] [2020-11-29 20:22:09,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091616220] [2020-11-29 20:22:09,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/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 [2020-11-29 20:22:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:09,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 20:22:09,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:22:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 1027 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2020-11-29 20:22:09,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:22:09,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 20:22:09,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222111778] [2020-11-29 20:22:09,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:22:09,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:22:09,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:22:09,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:22:09,921 INFO L87 Difference]: Start difference. First operand 13306 states and 14314 transitions. Second operand 3 states. [2020-11-29 20:22:10,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:22:10,977 INFO L93 Difference]: Finished difference Result 26619 states and 28660 transitions. [2020-11-29 20:22:10,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:22:10,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 763 [2020-11-29 20:22:10,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:22:10,990 INFO L225 Difference]: With dead ends: 26619 [2020-11-29 20:22:10,990 INFO L226 Difference]: Without dead ends: 13869 [2020-11-29 20:22:10,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 766 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:22:11,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13869 states. [2020-11-29 20:22:11,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13869 to 13492. [2020-11-29 20:22:11,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13492 states. [2020-11-29 20:22:11,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13492 states to 13492 states and 14500 transitions. [2020-11-29 20:22:11,146 INFO L78 Accepts]: Start accepts. Automaton has 13492 states and 14500 transitions. Word has length 763 [2020-11-29 20:22:11,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:22:11,146 INFO L481 AbstractCegarLoop]: Abstraction has 13492 states and 14500 transitions. [2020-11-29 20:22:11,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:22:11,146 INFO L276 IsEmpty]: Start isEmpty. Operand 13492 states and 14500 transitions. [2020-11-29 20:22:11,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2020-11-29 20:22:11,157 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:22:11,157 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-11-29 20:22:11,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-11-29 20:22:11,358 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:22:11,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:11,359 INFO L82 PathProgramCache]: Analyzing trace with hash 21568052, now seen corresponding path program 1 times [2020-11-29 20:22:11,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:11,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173248340] [2020-11-29 20:22:11,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:12,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2182 backedges. 1317 proven. 0 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2020-11-29 20:22:12,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173248340] [2020-11-29 20:22:12,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:22:12,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:22:12,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352991606] [2020-11-29 20:22:12,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:22:12,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:22:12,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:22:12,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:22:12,212 INFO L87 Difference]: Start difference. First operand 13492 states and 14500 transitions. Second operand 4 states. [2020-11-29 20:22:14,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:22:14,160 INFO L93 Difference]: Finished difference Result 26242 states and 28170 transitions. [2020-11-29 20:22:14,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:22:14,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 817 [2020-11-29 20:22:14,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:22:14,175 INFO L225 Difference]: With dead ends: 26242 [2020-11-29 20:22:14,175 INFO L226 Difference]: Without dead ends: 13306 [2020-11-29 20:22:14,182 INFO L677 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 [2020-11-29 20:22:14,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13306 states. [2020-11-29 20:22:14,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13306 to 11458. [2020-11-29 20:22:14,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11458 states. [2020-11-29 20:22:14,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11458 states to 11458 states and 12260 transitions. [2020-11-29 20:22:14,354 INFO L78 Accepts]: Start accepts. Automaton has 11458 states and 12260 transitions. Word has length 817 [2020-11-29 20:22:14,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:22:14,355 INFO L481 AbstractCegarLoop]: Abstraction has 11458 states and 12260 transitions. [2020-11-29 20:22:14,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:22:14,355 INFO L276 IsEmpty]: Start isEmpty. Operand 11458 states and 12260 transitions. [2020-11-29 20:22:14,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 864 [2020-11-29 20:22:14,372 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:22:14,373 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 20:22:14,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-11-29 20:22:14,373 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:22:14,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:14,374 INFO L82 PathProgramCache]: Analyzing trace with hash -522857988, now seen corresponding path program 1 times [2020-11-29 20:22:14,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:14,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062067934] [2020-11-29 20:22:14,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:15,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 1346 proven. 0 refuted. 0 times theorem prover too weak. 1066 trivial. 0 not checked. [2020-11-29 20:22:15,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062067934] [2020-11-29 20:22:15,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:22:15,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:22:15,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714321345] [2020-11-29 20:22:15,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:22:15,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:22:15,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:22:15,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:22:15,106 INFO L87 Difference]: Start difference. First operand 11458 states and 12260 transitions. Second operand 3 states. [2020-11-29 20:22:16,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:22:16,170 INFO L93 Difference]: Finished difference Result 22724 states and 24337 transitions. [2020-11-29 20:22:16,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:22:16,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 863 [2020-11-29 20:22:16,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:22:16,181 INFO L225 Difference]: With dead ends: 22724 [2020-11-29 20:22:16,181 INFO L226 Difference]: Without dead ends: 11822 [2020-11-29 20:22:16,187 INFO L677 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 [2020-11-29 20:22:16,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11822 states. [2020-11-29 20:22:16,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11822 to 11822. [2020-11-29 20:22:16,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11822 states. [2020-11-29 20:22:16,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11822 states to 11822 states and 12605 transitions. [2020-11-29 20:22:16,317 INFO L78 Accepts]: Start accepts. Automaton has 11822 states and 12605 transitions. Word has length 863 [2020-11-29 20:22:16,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:22:16,317 INFO L481 AbstractCegarLoop]: Abstraction has 11822 states and 12605 transitions. [2020-11-29 20:22:16,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:22:16,317 INFO L276 IsEmpty]: Start isEmpty. Operand 11822 states and 12605 transitions. [2020-11-29 20:22:16,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 869 [2020-11-29 20:22:16,328 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:22:16,329 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:22:16,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-11-29 20:22:16,329 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:22:16,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:16,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1021074497, now seen corresponding path program 1 times [2020-11-29 20:22:16,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:16,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322072717] [2020-11-29 20:22:16,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:18,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2012 backedges. 1338 proven. 125 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2020-11-29 20:22:18,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322072717] [2020-11-29 20:22:18,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35416160] [2020-11-29 20:22:18,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/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 [2020-11-29 20:22:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:18,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-29 20:22:18,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:22:18,543 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 20:22:18,547 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:22:18,585 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:22:18,607 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:22:18,636 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:22:18,882 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-11-29 20:22:18,884 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 20:22:18,890 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:22:18,900 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 20:22:20,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2012 backedges. 1386 proven. 201 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2020-11-29 20:22:20,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:22:20,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 9 [2020-11-29 20:22:20,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172007971] [2020-11-29 20:22:20,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 20:22:20,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:22:20,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 20:22:20,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-11-29 20:22:20,407 INFO L87 Difference]: Start difference. First operand 11822 states and 12605 transitions. Second operand 10 states. [2020-11-29 20:22:26,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:22:26,919 INFO L93 Difference]: Finished difference Result 23843 states and 25413 transitions. [2020-11-29 20:22:26,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-29 20:22:26,921 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 868 [2020-11-29 20:22:26,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:22:26,936 INFO L225 Difference]: With dead ends: 23843 [2020-11-29 20:22:26,937 INFO L226 Difference]: Without dead ends: 12577 [2020-11-29 20:22:26,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 883 GetRequests, 863 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-11-29 20:22:26,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12577 states. [2020-11-29 20:22:27,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12577 to 11818. [2020-11-29 20:22:27,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11818 states. [2020-11-29 20:22:27,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11818 states to 11818 states and 12520 transitions. [2020-11-29 20:22:27,146 INFO L78 Accepts]: Start accepts. Automaton has 11818 states and 12520 transitions. Word has length 868 [2020-11-29 20:22:27,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:22:27,147 INFO L481 AbstractCegarLoop]: Abstraction has 11818 states and 12520 transitions. [2020-11-29 20:22:27,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 20:22:27,148 INFO L276 IsEmpty]: Start isEmpty. Operand 11818 states and 12520 transitions. [2020-11-29 20:22:27,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 982 [2020-11-29 20:22:27,166 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:22:27,167 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:22:27,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:22:27,381 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:22:27,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:27,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1082402646, now seen corresponding path program 1 times [2020-11-29 20:22:27,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:27,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732439651] [2020-11-29 20:22:27,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:29,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2691 backedges. 1982 proven. 160 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2020-11-29 20:22:29,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732439651] [2020-11-29 20:22:29,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163666697] [2020-11-29 20:22:29,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/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 [2020-11-29 20:22:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:30,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 20:22:30,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:22:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2691 backedges. 1921 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2020-11-29 20:22:30,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:22:30,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2020-11-29 20:22:30,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192078644] [2020-11-29 20:22:30,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:22:30,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:22:30,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:22:30,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:22:30,941 INFO L87 Difference]: Start difference. First operand 11818 states and 12520 transitions. Second operand 4 states. [2020-11-29 20:22:32,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:22:32,754 INFO L93 Difference]: Finished difference Result 21057 states and 22281 transitions. [2020-11-29 20:22:32,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:22:32,755 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 981 [2020-11-29 20:22:32,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:22:32,756 INFO L225 Difference]: With dead ends: 21057 [2020-11-29 20:22:32,756 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:22:32,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 986 GetRequests, 979 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:22:32,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:22:32,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:22:32,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:22:32,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:22:32,761 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 981 [2020-11-29 20:22:32,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:22:32,762 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:22:32,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:22:32,762 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:22:32,762 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:22:32,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2020-11-29 20:22:32,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:22:34,918 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 767 DAG size of output: 528 [2020-11-29 20:22:36,260 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 764 DAG size of output: 526 [2020-11-29 20:22:42,080 WARN L193 SmtUtils]: Spent 5.81 s on a formula simplification. DAG size of input: 472 DAG size of output: 126 [2020-11-29 20:22:47,203 WARN L193 SmtUtils]: Spent 5.12 s on a formula simplification. DAG size of input: 472 DAG size of output: 126 [2020-11-29 20:22:47,206 INFO L274 CegarLoopResult]: For program point L498(lines 498 509) no Hoare annotation was computed. [2020-11-29 20:22:47,207 INFO L274 CegarLoopResult]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,207 INFO L274 CegarLoopResult]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2020-11-29 20:22:47,207 INFO L274 CegarLoopResult]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,207 INFO L274 CegarLoopResult]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,207 INFO L274 CegarLoopResult]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,207 INFO L274 CegarLoopResult]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,207 INFO L274 CegarLoopResult]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,207 INFO L274 CegarLoopResult]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,207 INFO L274 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-11-29 20:22:47,207 INFO L274 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-11-29 20:22:47,207 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-11-29 20:22:47,207 INFO L274 CegarLoopResult]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,208 INFO L274 CegarLoopResult]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,208 INFO L274 CegarLoopResult]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,208 INFO L274 CegarLoopResult]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,208 INFO L274 CegarLoopResult]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,208 INFO L274 CegarLoopResult]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,208 INFO L274 CegarLoopResult]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,208 INFO L274 CegarLoopResult]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,208 INFO L274 CegarLoopResult]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,208 INFO L274 CegarLoopResult]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,208 INFO L274 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-11-29 20:22:47,208 INFO L274 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-11-29 20:22:47,208 INFO L274 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-11-29 20:22:47,208 INFO L274 CegarLoopResult]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,209 INFO L274 CegarLoopResult]: For program point L768(lines 768 778) no Hoare annotation was computed. [2020-11-29 20:22:47,209 INFO L274 CegarLoopResult]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2020-11-29 20:22:47,209 INFO L274 CegarLoopResult]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,209 INFO L274 CegarLoopResult]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,209 INFO L274 CegarLoopResult]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,209 INFO L274 CegarLoopResult]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,209 INFO L274 CegarLoopResult]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,209 INFO L274 CegarLoopResult]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,209 INFO L274 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-11-29 20:22:47,209 INFO L274 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-11-29 20:22:47,209 INFO L274 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-11-29 20:22:47,209 INFO L274 CegarLoopResult]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,209 INFO L274 CegarLoopResult]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,209 INFO L274 CegarLoopResult]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,213 INFO L270 CegarLoopResult]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse16 (<= ~a23~0 138)) (.cse0 (<= ~a23~0 137)) (.cse19 (= ~a25~0 13)) (.cse11 (<= ~a29~0 276)) (.cse8 (< 140 ~a29~0)) (.cse21 (< 0 (+ ~a23~0 43))) (.cse15 (= ~a25~0 12)) (.cse1 (<= ~a25~0 10)) (.cse10 (= ~a4~0 1))) (let ((.cse12 (<= ~a23~0 312)) (.cse4 (<= ~a29~0 310110)) (.cse13 (let ((.cse27 (<= ~a29~0 130))) (or (and .cse27 .cse15 .cse10) (and .cse1 .cse27 .cse10)))) (.cse20 (<= (+ ~a29~0 59274) 0)) (.cse3 (<= 278 ~a29~0)) (.cse25 (or (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse8 .cse21 .cse10)) (.cse14 (or (<= ~a23~0 306) .cse8)) (.cse2 (= ~a4~0 0)) (.cse23 (<= ~a29~0 140)) (.cse7 (= ~a25~0 9)) (.cse22 (= ~a25~0 10)) (.cse17 (= ~a25~0 11)) (.cse26 (< 306 ~a23~0)) (.cse9 (<= ~a23~0 600000)) (.cse5 (= ~a8~0 15)) (.cse24 (or (and .cse1 .cse16 .cse10) (and .cse0 .cse19 .cse10 .cse11))) (.cse18 (<= ~a29~0 599998)) (.cse6 (= ~a3~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse5 .cse9 .cse10 .cse6 .cse11) (and .cse1 .cse12 (<= 130 ~a29~0) .cse5 .cse13 .cse6) (and (or (and .cse14 .cse12 .cse5 .cse15 .cse10) (and .cse14 .cse4 .cse5 .cse15 .cse9 .cse10)) .cse6) (and .cse16 .cse17 .cse2 .cse3 .cse5 .cse18 .cse6) (and .cse7 .cse14 (<= ~a23~0 599999) .cse5 .cse10 .cse6 .cse11) (and .cse19 .cse4 .cse5 .cse9 .cse10 .cse6) (and .cse0 .cse2 .cse19 .cse20 .cse5 .cse21 .cse6) (and .cse22 (<= (+ ~a23~0 212) 0) .cse5 .cse10) (and .cse16 .cse1 .cse2 .cse23 .cse5 .cse6) (and .cse0 .cse13) (and .cse7 .cse5 .cse24 .cse6) (and .cse20 .cse5 .cse15 .cse9 .cse10 .cse6) (and .cse25 .cse2 (<= (+ ~a29~0 320173) 0) .cse5 .cse15 .cse6) (and .cse22 .cse5 .cse9 .cse10 .cse6) (and .cse7 .cse3 .cse26 .cse5 .cse9 .cse10 .cse6) (and .cse25 .cse0 .cse2 .cse5 .cse15 .cse18 .cse6) (and .cse17 .cse14 .cse5 .cse9 .cse10 .cse6) (and .cse2 .cse8 .cse5 .cse15 .cse6 .cse11) (and .cse16 .cse17 .cse2 .cse23 .cse5 .cse6) (and (or (and .cse7 .cse10) (and .cse22 .cse10)) .cse8 .cse5 (<= ~a29~0 245) .cse6) (and .cse16 .cse17 .cse5 .cse10 .cse11) (and .cse26 .cse19 .cse5 .cse9 .cse10 .cse6) (and .cse8 .cse5 .cse24 .cse18 .cse6)))) [2020-11-29 20:22:47,213 INFO L274 CegarLoopResult]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,213 INFO L274 CegarLoopResult]: For program point L705(lines 705 715) no Hoare annotation was computed. [2020-11-29 20:22:47,213 INFO L274 CegarLoopResult]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2020-11-29 20:22:47,213 INFO L274 CegarLoopResult]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,213 INFO L274 CegarLoopResult]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,214 INFO L274 CegarLoopResult]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,214 INFO L274 CegarLoopResult]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,214 INFO L274 CegarLoopResult]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,214 INFO L274 CegarLoopResult]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,214 INFO L274 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-11-29 20:22:47,214 INFO L274 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-11-29 20:22:47,214 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-11-29 20:22:47,215 INFO L277 CegarLoopResult]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2020-11-29 20:22:47,215 INFO L274 CegarLoopResult]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,215 INFO L274 CegarLoopResult]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,215 INFO L274 CegarLoopResult]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,215 INFO L274 CegarLoopResult]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,215 INFO L274 CegarLoopResult]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,215 INFO L274 CegarLoopResult]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,216 INFO L274 CegarLoopResult]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,216 INFO L274 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-11-29 20:22:47,216 INFO L274 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-11-29 20:22:47,216 INFO L274 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-11-29 20:22:47,216 INFO L274 CegarLoopResult]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,216 INFO L274 CegarLoopResult]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,216 INFO L274 CegarLoopResult]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,216 INFO L274 CegarLoopResult]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,217 INFO L274 CegarLoopResult]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,217 INFO L274 CegarLoopResult]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,217 INFO L274 CegarLoopResult]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,217 INFO L274 CegarLoopResult]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,217 INFO L274 CegarLoopResult]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,217 INFO L274 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-11-29 20:22:47,217 INFO L274 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-11-29 20:22:47,217 INFO L274 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-11-29 20:22:47,218 INFO L274 CegarLoopResult]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,218 INFO L270 CegarLoopResult]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse16 (<= ~a23~0 138)) (.cse0 (<= ~a23~0 137)) (.cse19 (= ~a25~0 13)) (.cse11 (<= ~a29~0 276)) (.cse8 (< 140 ~a29~0)) (.cse21 (< 0 (+ ~a23~0 43))) (.cse15 (= ~a25~0 12)) (.cse1 (<= ~a25~0 10)) (.cse10 (= ~a4~0 1))) (let ((.cse12 (<= ~a23~0 312)) (.cse4 (<= ~a29~0 310110)) (.cse13 (let ((.cse27 (<= ~a29~0 130))) (or (and .cse27 .cse15 .cse10) (and .cse1 .cse27 .cse10)))) (.cse20 (<= (+ ~a29~0 59274) 0)) (.cse3 (<= 278 ~a29~0)) (.cse25 (or (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse8 .cse21 .cse10)) (.cse14 (or (<= ~a23~0 306) .cse8)) (.cse2 (= ~a4~0 0)) (.cse23 (<= ~a29~0 140)) (.cse7 (= ~a25~0 9)) (.cse22 (= ~a25~0 10)) (.cse17 (= ~a25~0 11)) (.cse26 (< 306 ~a23~0)) (.cse9 (<= ~a23~0 600000)) (.cse5 (= ~a8~0 15)) (.cse24 (or (and .cse1 .cse16 .cse10) (and .cse0 .cse19 .cse10 .cse11))) (.cse18 (<= ~a29~0 599998)) (.cse6 (= ~a3~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse5 .cse9 .cse10 .cse6 .cse11) (and .cse1 .cse12 (<= 130 ~a29~0) .cse5 .cse13 .cse6) (and (or (and .cse14 .cse12 .cse5 .cse15 .cse10) (and .cse14 .cse4 .cse5 .cse15 .cse9 .cse10)) .cse6) (and .cse16 .cse17 .cse2 .cse3 .cse5 .cse18 .cse6) (and .cse7 .cse14 (<= ~a23~0 599999) .cse5 .cse10 .cse6 .cse11) (and .cse19 .cse4 .cse5 .cse9 .cse10 .cse6) (and .cse0 .cse2 .cse19 .cse20 .cse5 .cse21 .cse6) (and .cse22 (<= (+ ~a23~0 212) 0) .cse5 .cse10) (and .cse16 .cse1 .cse2 .cse23 .cse5 .cse6) (and .cse0 .cse13) (and .cse7 .cse5 .cse24 .cse6) (and .cse20 .cse5 .cse15 .cse9 .cse10 .cse6) (and .cse25 .cse2 (<= (+ ~a29~0 320173) 0) .cse5 .cse15 .cse6) (and .cse22 .cse5 .cse9 .cse10 .cse6) (and .cse7 .cse3 .cse26 .cse5 .cse9 .cse10 .cse6) (and .cse25 .cse0 .cse2 .cse5 .cse15 .cse18 .cse6) (and .cse17 .cse14 .cse5 .cse9 .cse10 .cse6) (and .cse2 .cse8 .cse5 .cse15 .cse6 .cse11) (and .cse16 .cse17 .cse2 .cse23 .cse5 .cse6) (and (or (and .cse7 .cse10) (and .cse22 .cse10)) .cse8 .cse5 (<= ~a29~0 245) .cse6) (and .cse16 .cse17 .cse5 .cse10 .cse11) (and .cse26 .cse19 .cse5 .cse9 .cse10 .cse6) (and .cse8 .cse5 .cse24 .cse18 .cse6)))) [2020-11-29 20:22:47,218 INFO L274 CegarLoopResult]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,218 INFO L274 CegarLoopResult]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,219 INFO L274 CegarLoopResult]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,219 INFO L274 CegarLoopResult]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,219 INFO L274 CegarLoopResult]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,219 INFO L274 CegarLoopResult]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,219 INFO L274 CegarLoopResult]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,219 INFO L274 CegarLoopResult]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,219 INFO L274 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-11-29 20:22:47,220 INFO L274 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-11-29 20:22:47,220 INFO L274 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-11-29 20:22:47,220 INFO L274 CegarLoopResult]: For program point L980(lines 980 990) no Hoare annotation was computed. [2020-11-29 20:22:47,220 INFO L274 CegarLoopResult]: For program point L914(lines 914 924) no Hoare annotation was computed. [2020-11-29 20:22:47,220 INFO L274 CegarLoopResult]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2020-11-29 20:22:47,220 INFO L274 CegarLoopResult]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2020-11-29 20:22:47,220 INFO L274 CegarLoopResult]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,220 INFO L274 CegarLoopResult]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,221 INFO L274 CegarLoopResult]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,221 INFO L274 CegarLoopResult]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,221 INFO L274 CegarLoopResult]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,221 INFO L274 CegarLoopResult]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,221 INFO L274 CegarLoopResult]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,221 INFO L274 CegarLoopResult]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,221 INFO L274 CegarLoopResult]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,222 INFO L274 CegarLoopResult]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,222 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:22:47,222 INFO L274 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-11-29 20:22:47,222 INFO L274 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-11-29 20:22:47,222 INFO L274 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-11-29 20:22:47,222 INFO L274 CegarLoopResult]: For program point L1049(line 1049) no Hoare annotation was computed. [2020-11-29 20:22:47,222 INFO L274 CegarLoopResult]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,222 INFO L274 CegarLoopResult]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,223 INFO L274 CegarLoopResult]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,223 INFO L274 CegarLoopResult]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,223 INFO L274 CegarLoopResult]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,223 INFO L274 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-11-29 20:22:47,223 INFO L274 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-11-29 20:22:47,223 INFO L274 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-11-29 20:22:47,223 INFO L274 CegarLoopResult]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,223 INFO L274 CegarLoopResult]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,224 INFO L274 CegarLoopResult]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,224 INFO L274 CegarLoopResult]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,224 INFO L274 CegarLoopResult]: For program point L525(lines 525 535) no Hoare annotation was computed. [2020-11-29 20:22:47,224 INFO L274 CegarLoopResult]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2020-11-29 20:22:47,224 INFO L274 CegarLoopResult]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,224 INFO L274 CegarLoopResult]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,224 INFO L274 CegarLoopResult]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,224 INFO L274 CegarLoopResult]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,225 INFO L274 CegarLoopResult]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,225 INFO L274 CegarLoopResult]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,225 INFO L274 CegarLoopResult]: For program point L658(lines 658 667) no Hoare annotation was computed. [2020-11-29 20:22:47,225 INFO L274 CegarLoopResult]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2020-11-29 20:22:47,225 INFO L274 CegarLoopResult]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,225 INFO L274 CegarLoopResult]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,225 INFO L274 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-11-29 20:22:47,225 INFO L274 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-11-29 20:22:47,226 INFO L274 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-11-29 20:22:47,226 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 20:22:47,226 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 20:22:47,226 INFO L274 CegarLoopResult]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,226 INFO L274 CegarLoopResult]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,226 INFO L274 CegarLoopResult]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,226 INFO L274 CegarLoopResult]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,227 INFO L274 CegarLoopResult]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,227 INFO L274 CegarLoopResult]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,227 INFO L274 CegarLoopResult]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,227 INFO L274 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-11-29 20:22:47,227 INFO L274 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-11-29 20:22:47,227 INFO L274 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-11-29 20:22:47,227 INFO L274 CegarLoopResult]: For program point L926(lines 926 936) no Hoare annotation was computed. [2020-11-29 20:22:47,227 INFO L274 CegarLoopResult]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2020-11-29 20:22:47,228 INFO L274 CegarLoopResult]: For program point L728(lines 728 740) no Hoare annotation was computed. [2020-11-29 20:22:47,228 INFO L274 CegarLoopResult]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2020-11-29 20:22:47,228 INFO L274 CegarLoopResult]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,228 INFO L274 CegarLoopResult]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,228 INFO L274 CegarLoopResult]: For program point L597(lines 597 607) no Hoare annotation was computed. [2020-11-29 20:22:47,228 INFO L274 CegarLoopResult]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2020-11-29 20:22:47,228 INFO L274 CegarLoopResult]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,228 INFO L274 CegarLoopResult]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,229 INFO L274 CegarLoopResult]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,229 INFO L274 CegarLoopResult]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,229 INFO L274 CegarLoopResult]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,229 INFO L274 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-11-29 20:22:47,229 INFO L274 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-11-29 20:22:47,229 INFO L274 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-11-29 20:22:47,229 INFO L274 CegarLoopResult]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,229 INFO L274 CegarLoopResult]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,230 INFO L274 CegarLoopResult]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,230 INFO L274 CegarLoopResult]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,230 INFO L274 CegarLoopResult]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,230 INFO L274 CegarLoopResult]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,230 INFO L274 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-11-29 20:22:47,230 INFO L274 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-11-29 20:22:47,230 INFO L274 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-11-29 20:22:47,230 INFO L274 CegarLoopResult]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,231 INFO L274 CegarLoopResult]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,231 INFO L274 CegarLoopResult]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,231 INFO L274 CegarLoopResult]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,231 INFO L274 CegarLoopResult]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,231 INFO L274 CegarLoopResult]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,231 INFO L274 CegarLoopResult]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,231 INFO L274 CegarLoopResult]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,231 INFO L274 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-11-29 20:22:47,232 INFO L274 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-11-29 20:22:47,232 INFO L274 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-11-29 20:22:47,232 INFO L274 CegarLoopResult]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,232 INFO L274 CegarLoopResult]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,232 INFO L274 CegarLoopResult]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,232 INFO L274 CegarLoopResult]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,232 INFO L274 CegarLoopResult]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,232 INFO L274 CegarLoopResult]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,233 INFO L274 CegarLoopResult]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,233 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 20:22:47,233 INFO L274 CegarLoopResult]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,233 INFO L274 CegarLoopResult]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,233 INFO L274 CegarLoopResult]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,233 INFO L274 CegarLoopResult]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,233 INFO L274 CegarLoopResult]: For program point L409(lines 409 420) no Hoare annotation was computed. [2020-11-29 20:22:47,233 INFO L274 CegarLoopResult]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2020-11-29 20:22:47,234 INFO L274 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-11-29 20:22:47,234 INFO L274 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-11-29 20:22:47,234 INFO L274 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-11-29 20:22:47,234 INFO L274 CegarLoopResult]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,234 INFO L274 CegarLoopResult]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,234 INFO L274 CegarLoopResult]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,234 INFO L274 CegarLoopResult]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,234 INFO L274 CegarLoopResult]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,235 INFO L274 CegarLoopResult]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,235 INFO L274 CegarLoopResult]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,235 INFO L274 CegarLoopResult]: For program point L214(line 214) no Hoare annotation was computed. [2020-11-29 20:22:47,235 INFO L274 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-11-29 20:22:47,235 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-29 20:22:47,235 INFO L274 CegarLoopResult]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,235 INFO L274 CegarLoopResult]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,235 INFO L274 CegarLoopResult]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,236 INFO L274 CegarLoopResult]: For program point L876(lines 876 885) no Hoare annotation was computed. [2020-11-29 20:22:47,236 INFO L274 CegarLoopResult]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2020-11-29 20:22:47,236 INFO L274 CegarLoopResult]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,236 INFO L274 CegarLoopResult]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,236 INFO L274 CegarLoopResult]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,236 INFO L274 CegarLoopResult]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,236 INFO L274 CegarLoopResult]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,237 INFO L274 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-11-29 20:22:47,237 INFO L274 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-11-29 20:22:47,237 INFO L274 CegarLoopResult]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,237 INFO L274 CegarLoopResult]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,237 INFO L274 CegarLoopResult]: For program point L614(lines 614 624) no Hoare annotation was computed. [2020-11-29 20:22:47,237 INFO L274 CegarLoopResult]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2020-11-29 20:22:47,237 INFO L274 CegarLoopResult]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,237 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:22:47,237 INFO L274 CegarLoopResult]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,238 INFO L274 CegarLoopResult]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,238 INFO L274 CegarLoopResult]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,238 INFO L274 CegarLoopResult]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,238 INFO L274 CegarLoopResult]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,238 INFO L274 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-11-29 20:22:47,238 INFO L274 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-11-29 20:22:47,238 INFO L274 CegarLoopResult]: For program point L815(lines 815 825) no Hoare annotation was computed. [2020-11-29 20:22:47,238 INFO L274 CegarLoopResult]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2020-11-29 20:22:47,239 INFO L274 CegarLoopResult]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,239 INFO L274 CegarLoopResult]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,239 INFO L274 CegarLoopResult]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,239 INFO L274 CegarLoopResult]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,239 INFO L274 CegarLoopResult]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,239 INFO L274 CegarLoopResult]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,239 INFO L274 CegarLoopResult]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,240 INFO L274 CegarLoopResult]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,240 INFO L274 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-11-29 20:22:47,240 INFO L274 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-11-29 20:22:47,240 INFO L274 CegarLoopResult]: For program point L950(lines 950 962) no Hoare annotation was computed. [2020-11-29 20:22:47,240 INFO L274 CegarLoopResult]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2020-11-29 20:22:47,240 INFO L274 CegarLoopResult]: For program point L488(lines 488 496) no Hoare annotation was computed. [2020-11-29 20:22:47,240 INFO L274 CegarLoopResult]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2020-11-29 20:22:47,240 INFO L274 CegarLoopResult]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,241 INFO L274 CegarLoopResult]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,241 INFO L274 CegarLoopResult]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,241 INFO L274 CegarLoopResult]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,241 INFO L274 CegarLoopResult]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,241 INFO L274 CegarLoopResult]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,241 INFO L274 CegarLoopResult]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,241 INFO L274 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-11-29 20:22:47,241 INFO L274 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-11-29 20:22:47,242 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:22:47,242 INFO L274 CegarLoopResult]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,242 INFO L274 CegarLoopResult]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,242 INFO L274 CegarLoopResult]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,242 INFO L274 CegarLoopResult]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,242 INFO L274 CegarLoopResult]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,242 INFO L274 CegarLoopResult]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,242 INFO L274 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-11-29 20:22:47,243 INFO L274 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-11-29 20:22:47,243 INFO L274 CegarLoopResult]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,243 INFO L274 CegarLoopResult]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,243 INFO L274 CegarLoopResult]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,243 INFO L274 CegarLoopResult]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,243 INFO L274 CegarLoopResult]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,243 INFO L274 CegarLoopResult]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,243 INFO L274 CegarLoopResult]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,244 INFO L274 CegarLoopResult]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-11-29 20:22:47,244 INFO L274 CegarLoopResult]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2020-11-29 20:22:47,244 INFO L274 CegarLoopResult]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,244 INFO L274 CegarLoopResult]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,244 INFO L274 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-11-29 20:22:47,244 INFO L274 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-11-29 20:22:47,244 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-11-29 20:22:47,244 INFO L274 CegarLoopResult]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2020-11-29 20:22:47,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:22:47 BoogieIcfgContainer [2020-11-29 20:22:47,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:22:47,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:22:47,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:22:47,304 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:22:47,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:21:04" (3/4) ... [2020-11-29 20:22:47,308 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:22:47,334 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 20:22:47,336 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 20:22:47,338 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:22:47,340 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:22:47,517 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_37aaba2c-1268-4d77-8278-72b94c7ec670/bin/uautomizer/witness.graphml [2020-11-29 20:22:47,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:22:47,518 INFO L168 Benchmark]: Toolchain (without parser) took 106276.06 ms. Allocated memory was 102.8 MB in the beginning and 3.2 GB in the end (delta: 3.1 GB). Free memory was 71.6 MB in the beginning and 2.6 GB in the end (delta: -2.5 GB). Peak memory consumption was 607.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:22:47,518 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory was 38.0 MB in the beginning and 37.9 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:22:47,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 862.27 ms. Allocated memory is still 102.8 MB. Free memory was 71.3 MB in the beginning and 48.4 MB in the end (delta: 23.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:22:47,519 INFO L168 Benchmark]: Boogie Procedure Inliner took 222.93 ms. Allocated memory is still 102.8 MB. Free memory was 48.4 MB in the beginning and 71.3 MB in the end (delta: -22.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:22:47,520 INFO L168 Benchmark]: Boogie Preprocessor took 151.42 ms. Allocated memory is still 102.8 MB. Free memory was 71.3 MB in the beginning and 61.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:22:47,520 INFO L168 Benchmark]: RCFGBuilder took 2259.37 ms. Allocated memory was 102.8 MB in the beginning and 155.2 MB in the end (delta: 52.4 MB). Free memory was 61.3 MB in the beginning and 61.8 MB in the end (delta: -538.2 kB). Peak memory consumption was 60.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:22:47,521 INFO L168 Benchmark]: TraceAbstraction took 102558.28 ms. Allocated memory was 155.2 MB in the beginning and 3.2 GB in the end (delta: 3.1 GB). Free memory was 60.8 MB in the beginning and 2.6 GB in the end (delta: -2.6 GB). Peak memory consumption was 2.1 GB. Max. memory is 16.1 GB. [2020-11-29 20:22:47,521 INFO L168 Benchmark]: Witness Printer took 213.04 ms. Allocated memory is still 3.2 GB. Free memory was 2.6 GB in the beginning and 2.6 GB in the end (delta: 26.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:22:47,523 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory was 38.0 MB in the beginning and 37.9 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 862.27 ms. Allocated memory is still 102.8 MB. Free memory was 71.3 MB in the beginning and 48.4 MB in the end (delta: 23.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 222.93 ms. Allocated memory is still 102.8 MB. Free memory was 48.4 MB in the beginning and 71.3 MB in the end (delta: -22.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 151.42 ms. Allocated memory is still 102.8 MB. Free memory was 71.3 MB in the beginning and 61.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2259.37 ms. Allocated memory was 102.8 MB in the beginning and 155.2 MB in the end (delta: 52.4 MB). Free memory was 61.3 MB in the beginning and 61.8 MB in the end (delta: -538.2 kB). Peak memory consumption was 60.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 102558.28 ms. Allocated memory was 155.2 MB in the beginning and 3.2 GB in the end (delta: 3.1 GB). Free memory was 60.8 MB in the beginning and 2.6 GB in the end (delta: -2.6 GB). Peak memory consumption was 2.1 GB. Max. memory is 16.1 GB. * Witness Printer took 213.04 ms. Allocated memory is still 3.2 GB. Free memory was 2.6 GB in the beginning and 2.6 GB in the end (delta: 26.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 1038]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((a23 <= 137 && a25 <= 10) && a4 == 0) && 278 <= a29) && a29 <= 310110) && a8 == 15) && a3 == 1) || ((((((a25 == 9 && 140 < a29) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1) && a29 <= 276)) || (((((a25 <= 10 && a23 <= 312) && 130 <= a29) && a8 == 15) && (((a29 <= 130 && a25 == 12) && a4 == 1) || ((a25 <= 10 && a29 <= 130) && a4 == 1))) && a3 == 1)) || (((((((a23 <= 306 || 140 < a29) && a23 <= 312) && a8 == 15) && a25 == 12) && a4 == 1) || ((((((a23 <= 306 || 140 < a29) && a29 <= 310110) && a8 == 15) && a25 == 12) && a23 <= 600000) && a4 == 1)) && a3 == 1)) || ((((((a23 <= 138 && a25 == 11) && a4 == 0) && 278 <= a29) && a8 == 15) && a29 <= 599998) && a3 == 1)) || ((((((a25 == 9 && (a23 <= 306 || 140 < a29)) && a23 <= 599999) && a8 == 15) && a4 == 1) && a3 == 1) && a29 <= 276)) || (((((a25 == 13 && a29 <= 310110) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a23 <= 137 && a4 == 0) && a25 == 13) && a29 + 59274 <= 0) && a8 == 15) && 0 < a23 + 43) && a3 == 1)) || (((a25 == 10 && a23 + 212 <= 0) && a8 == 15) && a4 == 1)) || (((((a23 <= 138 && a25 <= 10) && a4 == 0) && a29 <= 140) && a8 == 15) && a3 == 1)) || (a23 <= 137 && (((a29 <= 130 && a25 == 12) && a4 == 1) || ((a25 <= 10 && a29 <= 130) && a4 == 1)))) || (((a25 == 9 && a8 == 15) && (((a25 <= 10 && a23 <= 138) && a4 == 1) || (((a23 <= 137 && a25 == 13) && a4 == 1) && a29 <= 276))) && a3 == 1)) || (((((a29 + 59274 <= 0 && a8 == 15) && a25 == 12) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((((!(6 == input) || 140 < a29) || 0 < a23 + 43) || a4 == 1) && a4 == 0) && a29 + 320173 <= 0) && a8 == 15) && a25 == 12) && a3 == 1)) || ((((a25 == 10 && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a25 == 9 && 278 <= a29) && 306 < a23) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (((((((((!(6 == input) || 140 < a29) || 0 < a23 + 43) || a4 == 1) && a23 <= 137) && a4 == 0) && a8 == 15) && a25 == 12) && a29 <= 599998) && a3 == 1)) || (((((a25 == 11 && (a23 <= 306 || 140 < a29)) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (((((a4 == 0 && 140 < a29) && a8 == 15) && a25 == 12) && a3 == 1) && a29 <= 276)) || (((((a23 <= 138 && a25 == 11) && a4 == 0) && a29 <= 140) && a8 == 15) && a3 == 1)) || ((((((a25 == 9 && a4 == 1) || (a25 == 10 && a4 == 1)) && 140 < a29) && a8 == 15) && a29 <= 245) && a3 == 1)) || ((((a23 <= 138 && a25 == 11) && a8 == 15) && a4 == 1) && a29 <= 276)) || (((((306 < a23 && a25 == 13) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((140 < a29 && a8 == 15) && (((a25 <= 10 && a23 <= 138) && a4 == 1) || (((a23 <= 137 && a25 == 13) && a4 == 1) && a29 <= 276))) && a29 <= 599998) && a3 == 1) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((a23 <= 137 && a25 <= 10) && a4 == 0) && 278 <= a29) && a29 <= 310110) && a8 == 15) && a3 == 1) || ((((((a25 == 9 && 140 < a29) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1) && a29 <= 276)) || (((((a25 <= 10 && a23 <= 312) && 130 <= a29) && a8 == 15) && (((a29 <= 130 && a25 == 12) && a4 == 1) || ((a25 <= 10 && a29 <= 130) && a4 == 1))) && a3 == 1)) || (((((((a23 <= 306 || 140 < a29) && a23 <= 312) && a8 == 15) && a25 == 12) && a4 == 1) || ((((((a23 <= 306 || 140 < a29) && a29 <= 310110) && a8 == 15) && a25 == 12) && a23 <= 600000) && a4 == 1)) && a3 == 1)) || ((((((a23 <= 138 && a25 == 11) && a4 == 0) && 278 <= a29) && a8 == 15) && a29 <= 599998) && a3 == 1)) || ((((((a25 == 9 && (a23 <= 306 || 140 < a29)) && a23 <= 599999) && a8 == 15) && a4 == 1) && a3 == 1) && a29 <= 276)) || (((((a25 == 13 && a29 <= 310110) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a23 <= 137 && a4 == 0) && a25 == 13) && a29 + 59274 <= 0) && a8 == 15) && 0 < a23 + 43) && a3 == 1)) || (((a25 == 10 && a23 + 212 <= 0) && a8 == 15) && a4 == 1)) || (((((a23 <= 138 && a25 <= 10) && a4 == 0) && a29 <= 140) && a8 == 15) && a3 == 1)) || (a23 <= 137 && (((a29 <= 130 && a25 == 12) && a4 == 1) || ((a25 <= 10 && a29 <= 130) && a4 == 1)))) || (((a25 == 9 && a8 == 15) && (((a25 <= 10 && a23 <= 138) && a4 == 1) || (((a23 <= 137 && a25 == 13) && a4 == 1) && a29 <= 276))) && a3 == 1)) || (((((a29 + 59274 <= 0 && a8 == 15) && a25 == 12) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((((!(6 == input) || 140 < a29) || 0 < a23 + 43) || a4 == 1) && a4 == 0) && a29 + 320173 <= 0) && a8 == 15) && a25 == 12) && a3 == 1)) || ((((a25 == 10 && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a25 == 9 && 278 <= a29) && 306 < a23) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (((((((((!(6 == input) || 140 < a29) || 0 < a23 + 43) || a4 == 1) && a23 <= 137) && a4 == 0) && a8 == 15) && a25 == 12) && a29 <= 599998) && a3 == 1)) || (((((a25 == 11 && (a23 <= 306 || 140 < a29)) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (((((a4 == 0 && 140 < a29) && a8 == 15) && a25 == 12) && a3 == 1) && a29 <= 276)) || (((((a23 <= 138 && a25 == 11) && a4 == 0) && a29 <= 140) && a8 == 15) && a3 == 1)) || ((((((a25 == 9 && a4 == 1) || (a25 == 10 && a4 == 1)) && 140 < a29) && a8 == 15) && a29 <= 245) && a3 == 1)) || ((((a23 <= 138 && a25 == 11) && a8 == 15) && a4 == 1) && a29 <= 276)) || (((((306 < a23 && a25 == 13) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((140 < a29 && a8 == 15) && (((a25 <= 10 && a23 <= 138) && a4 == 1) || (((a23 <= 137 && a25 == 13) && a4 == 1) && a29 <= 276))) && a29 <= 599998) && a3 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 88.1s, OverallIterations: 31, TraceHistogramMax: 8, AutomataDifference: 54.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 14.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4705 SDtfs, 6796 SDslu, 841 SDs, 0 SdLazy, 24643 SolverSat, 3671 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 35.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3863 GetRequests, 3787 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26469occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.8s AutomataMinimizationTime, 31 MinimizatonAttempts, 39741 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 151 NumberOfFragments, 1211 HoareAnnotationTreeSize, 3 FomulaSimplifications, 152204 FormulaSimplificationTreeSizeReduction, 3.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 86872 FormulaSimplificationTreeSizeReductionInter, 10.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 18271 NumberOfCodeBlocks, 18271 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 18235 ConstructedInterpolants, 0 QuantifiedInterpolants, 37663821 SizeOfPredicates, 17 NumberOfNonLiveVariables, 4808 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 36 InterpolantComputations, 29 PerfectInterpolantSequences, 31071/32535 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...