./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label04.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_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label04.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/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 a782d0524cc0b0b5c0b646ffcbe2ffba4b8b0177 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:35:22,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:35:22,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:35:22,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:35:22,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:35:22,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:35:22,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:35:22,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:35:22,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:35:22,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:35:22,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:35:22,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:35:22,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:35:22,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:35:22,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:35:22,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:35:22,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:35:22,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:35:22,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:35:22,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:35:22,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:35:22,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:35:22,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:35:22,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:35:22,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:35:22,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:35:22,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:35:22,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:35:23,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:35:23,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:35:23,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:35:23,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:35:23,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:35:23,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:35:23,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:35:23,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:35:23,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:35:23,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:35:23,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:35:23,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:35:23,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:35:23,020 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:35:23,069 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:35:23,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:35:23,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:35:23,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:35:23,073 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:35:23,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:35:23,073 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:35:23,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:35:23,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:35:23,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:35:23,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:35:23,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:35:23,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:35:23,077 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:35:23,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:35:23,077 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:35:23,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:35:23,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:35:23,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:35:23,078 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:35:23,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:35:23,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:35:23,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:35:23,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:35:23,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:35:23,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:35:23,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:35:23,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:35:23,091 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:35:23,091 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_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a782d0524cc0b0b5c0b646ffcbe2ffba4b8b0177 [2020-11-29 23:35:23,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:35:23,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:35:23,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:35:23,553 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:35:23,555 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:35:23,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label04.c [2020-11-29 23:35:23,655 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/bin/uautomizer/data/d923eeea0/212a0a3a4ae34ed4b66ac0978aab1e6c/FLAG001f83766 [2020-11-29 23:35:24,371 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:35:24,371 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/sv-benchmarks/c/eca-rers2012/Problem01_label04.c [2020-11-29 23:35:24,405 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/bin/uautomizer/data/d923eeea0/212a0a3a4ae34ed4b66ac0978aab1e6c/FLAG001f83766 [2020-11-29 23:35:24,563 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/bin/uautomizer/data/d923eeea0/212a0a3a4ae34ed4b66ac0978aab1e6c [2020-11-29 23:35:24,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:35:24,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:35:24,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:35:24,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:35:24,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:35:24,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:35:24" (1/1) ... [2020-11-29 23:35:24,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3157ee34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:24, skipping insertion in model container [2020-11-29 23:35:24,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:35:24" (1/1) ... [2020-11-29 23:35:24,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:35:24,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:35:25,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:35:25,276 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:35:25,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:35:25,507 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:35:25,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:25 WrapperNode [2020-11-29 23:35:25,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:35:25,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:35:25,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:35:25,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:35:25,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:25" (1/1) ... [2020-11-29 23:35:25,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:25" (1/1) ... [2020-11-29 23:35:25,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:35:25,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:35:25,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:35:25,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:35:25,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:25" (1/1) ... [2020-11-29 23:35:25,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:25" (1/1) ... [2020-11-29 23:35:25,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:25" (1/1) ... [2020-11-29 23:35:25,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:25" (1/1) ... [2020-11-29 23:35:25,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:25" (1/1) ... [2020-11-29 23:35:25,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:25" (1/1) ... [2020-11-29 23:35:25,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:25" (1/1) ... [2020-11-29 23:35:25,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:35:25,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:35:25,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:35:25,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:35:25,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/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 23:35:25,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:35:25,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:35:25,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:35:25,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:35:27,407 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:35:27,408 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 23:35:27,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:35:27 BoogieIcfgContainer [2020-11-29 23:35:27,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:35:27,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:35:27,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:35:27,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:35:27,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:35:24" (1/3) ... [2020-11-29 23:35:27,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5808c35b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:35:27, skipping insertion in model container [2020-11-29 23:35:27,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:25" (2/3) ... [2020-11-29 23:35:27,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5808c35b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:35:27, skipping insertion in model container [2020-11-29 23:35:27,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:35:27" (3/3) ... [2020-11-29 23:35:27,419 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label04.c [2020-11-29 23:35:27,429 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:35:27,434 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:35:27,445 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:35:27,469 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:35:27,470 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:35:27,470 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:35:27,470 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:35:27,470 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:35:27,470 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:35:27,470 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:35:27,471 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:35:27,489 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-11-29 23:35:27,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-11-29 23:35:27,504 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:27,505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:35:27,505 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:27,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:27,511 INFO L82 PathProgramCache]: Analyzing trace with hash 857742575, now seen corresponding path program 1 times [2020-11-29 23:35:27,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:27,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760720597] [2020-11-29 23:35:27,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:28,006 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 23:35:28,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760720597] [2020-11-29 23:35:28,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:28,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:35:28,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315510500] [2020-11-29 23:35:28,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:28,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:28,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:28,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:28,035 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-11-29 23:35:29,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:29,236 INFO L93 Difference]: Finished difference Result 554 states and 941 transitions. [2020-11-29 23:35:29,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:29,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-11-29 23:35:29,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:29,251 INFO L225 Difference]: With dead ends: 554 [2020-11-29 23:35:29,251 INFO L226 Difference]: Without dead ends: 266 [2020-11-29 23:35:29,255 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 23:35:29,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-29 23:35:29,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-29 23:35:29,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-29 23:35:29,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2020-11-29 23:35:29,312 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 96 [2020-11-29 23:35:29,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:29,313 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2020-11-29 23:35:29,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:29,313 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2020-11-29 23:35:29,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-11-29 23:35:29,318 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:29,319 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-29 23:35:29,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:35:29,319 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:29,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:29,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1186737924, now seen corresponding path program 1 times [2020-11-29 23:35:29,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:29,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744184782] [2020-11-29 23:35:29,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:29,439 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:29,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744184782] [2020-11-29 23:35:29,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:29,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:35:29,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338169425] [2020-11-29 23:35:29,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:29,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:29,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:29,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:29,447 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 3 states. [2020-11-29 23:35:30,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:30,160 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2020-11-29 23:35:30,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:30,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-11-29 23:35:30,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:30,166 INFO L225 Difference]: With dead ends: 792 [2020-11-29 23:35:30,166 INFO L226 Difference]: Without dead ends: 528 [2020-11-29 23:35:30,168 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 23:35:30,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-11-29 23:35:30,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-11-29 23:35:30,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-29 23:35:30,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 709 transitions. [2020-11-29 23:35:30,217 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 709 transitions. Word has length 102 [2020-11-29 23:35:30,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:30,218 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 709 transitions. [2020-11-29 23:35:30,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:30,218 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 709 transitions. [2020-11-29 23:35:30,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-11-29 23:35:30,230 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:30,231 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-29 23:35:30,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:35:30,232 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:30,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:30,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1212901892, now seen corresponding path program 1 times [2020-11-29 23:35:30,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:30,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831440800] [2020-11-29 23:35:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 23:35:30,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831440800] [2020-11-29 23:35:30,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:30,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:35:30,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231380447] [2020-11-29 23:35:30,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:30,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:30,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:30,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:30,381 INFO L87 Difference]: Start difference. First operand 528 states and 709 transitions. Second operand 3 states. [2020-11-29 23:35:31,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:31,062 INFO L93 Difference]: Finished difference Result 1578 states and 2122 transitions. [2020-11-29 23:35:31,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:31,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-11-29 23:35:31,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:31,069 INFO L225 Difference]: With dead ends: 1578 [2020-11-29 23:35:31,070 INFO L226 Difference]: Without dead ends: 1052 [2020-11-29 23:35:31,071 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 23:35:31,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-11-29 23:35:31,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2020-11-29 23:35:31,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-11-29 23:35:31,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1365 transitions. [2020-11-29 23:35:31,147 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1365 transitions. Word has length 103 [2020-11-29 23:35:31,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:31,149 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1365 transitions. [2020-11-29 23:35:31,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:31,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1365 transitions. [2020-11-29 23:35:31,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-11-29 23:35:31,162 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:31,162 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:35:31,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 23:35:31,162 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:31,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:31,163 INFO L82 PathProgramCache]: Analyzing trace with hash -295832496, now seen corresponding path program 1 times [2020-11-29 23:35:31,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:31,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563352935] [2020-11-29 23:35:31,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:31,226 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-29 23:35:31,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563352935] [2020-11-29 23:35:31,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:31,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:35:31,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061680728] [2020-11-29 23:35:31,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:31,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:31,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:31,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:31,236 INFO L87 Difference]: Start difference. First operand 1052 states and 1365 transitions. Second operand 3 states. [2020-11-29 23:35:31,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:31,928 INFO L93 Difference]: Finished difference Result 2888 states and 3762 transitions. [2020-11-29 23:35:31,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:31,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-11-29 23:35:31,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:31,939 INFO L225 Difference]: With dead ends: 2888 [2020-11-29 23:35:31,939 INFO L226 Difference]: Without dead ends: 1838 [2020-11-29 23:35:31,941 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 23:35:31,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-11-29 23:35:31,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1314. [2020-11-29 23:35:31,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-11-29 23:35:31,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1646 transitions. [2020-11-29 23:35:31,986 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1646 transitions. Word has length 116 [2020-11-29 23:35:31,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:31,986 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1646 transitions. [2020-11-29 23:35:31,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:31,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1646 transitions. [2020-11-29 23:35:31,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-11-29 23:35:31,991 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:31,991 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-11-29 23:35:31,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 23:35:31,992 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:31,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:31,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1066815200, now seen corresponding path program 1 times [2020-11-29 23:35:31,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:31,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298402322] [2020-11-29 23:35:31,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:32,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298402322] [2020-11-29 23:35:32,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:32,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:35:32,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177661796] [2020-11-29 23:35:32,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:32,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:32,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:32,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:32,120 INFO L87 Difference]: Start difference. First operand 1314 states and 1646 transitions. Second operand 3 states. [2020-11-29 23:35:32,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:32,890 INFO L93 Difference]: Finished difference Result 3936 states and 4933 transitions. [2020-11-29 23:35:32,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:32,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-11-29 23:35:32,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:32,913 INFO L225 Difference]: With dead ends: 3936 [2020-11-29 23:35:32,913 INFO L226 Difference]: Without dead ends: 2624 [2020-11-29 23:35:32,916 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 23:35:32,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2020-11-29 23:35:32,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2231. [2020-11-29 23:35:32,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-11-29 23:35:32,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2725 transitions. [2020-11-29 23:35:32,983 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2725 transitions. Word has length 119 [2020-11-29 23:35:32,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:32,984 INFO L481 AbstractCegarLoop]: Abstraction has 2231 states and 2725 transitions. [2020-11-29 23:35:32,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:32,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2725 transitions. [2020-11-29 23:35:32,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-11-29 23:35:32,989 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:32,989 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-11-29 23:35:32,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 23:35:32,990 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:32,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:32,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1219850033, now seen corresponding path program 1 times [2020-11-29 23:35:32,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:32,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270496669] [2020-11-29 23:35:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:33,169 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:33,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270496669] [2020-11-29 23:35:33,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:33,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:35:33,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711190031] [2020-11-29 23:35:33,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:35:33,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:33,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:35:33,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:35:33,175 INFO L87 Difference]: Start difference. First operand 2231 states and 2725 transitions. Second operand 4 states. [2020-11-29 23:35:34,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:34,223 INFO L93 Difference]: Finished difference Result 4853 states and 5865 transitions. [2020-11-29 23:35:34,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:35:34,223 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2020-11-29 23:35:34,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:34,238 INFO L225 Difference]: With dead ends: 4853 [2020-11-29 23:35:34,238 INFO L226 Difference]: Without dead ends: 2755 [2020-11-29 23:35:34,241 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 23:35:34,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2020-11-29 23:35:34,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2362. [2020-11-29 23:35:34,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2020-11-29 23:35:34,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2850 transitions. [2020-11-29 23:35:34,296 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2850 transitions. Word has length 122 [2020-11-29 23:35:34,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:34,297 INFO L481 AbstractCegarLoop]: Abstraction has 2362 states and 2850 transitions. [2020-11-29 23:35:34,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:35:34,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2850 transitions. [2020-11-29 23:35:34,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-11-29 23:35:34,302 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:34,302 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:35:34,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 23:35:34,303 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:34,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:34,303 INFO L82 PathProgramCache]: Analyzing trace with hash -846357418, now seen corresponding path program 1 times [2020-11-29 23:35:34,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:34,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768614600] [2020-11-29 23:35:34,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:34,355 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-29 23:35:34,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768614600] [2020-11-29 23:35:34,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:34,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:35:34,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501041183] [2020-11-29 23:35:34,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:34,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:34,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:34,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:34,358 INFO L87 Difference]: Start difference. First operand 2362 states and 2850 transitions. Second operand 3 states. [2020-11-29 23:35:34,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:34,968 INFO L93 Difference]: Finished difference Result 4853 states and 5829 transitions. [2020-11-29 23:35:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:34,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-11-29 23:35:34,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:34,982 INFO L225 Difference]: With dead ends: 4853 [2020-11-29 23:35:34,982 INFO L226 Difference]: Without dead ends: 2362 [2020-11-29 23:35:34,986 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 23:35:34,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-11-29 23:35:35,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2362. [2020-11-29 23:35:35,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2020-11-29 23:35:35,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2637 transitions. [2020-11-29 23:35:35,039 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2637 transitions. Word has length 123 [2020-11-29 23:35:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:35,040 INFO L481 AbstractCegarLoop]: Abstraction has 2362 states and 2637 transitions. [2020-11-29 23:35:35,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:35,040 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2637 transitions. [2020-11-29 23:35:35,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-11-29 23:35:35,045 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:35,045 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 23:35:35,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 23:35:35,046 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:35,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:35,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1029766820, now seen corresponding path program 1 times [2020-11-29 23:35:35,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:35,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802130760] [2020-11-29 23:35:35,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:35,104 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-11-29 23:35:35,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802130760] [2020-11-29 23:35:35,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:35,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:35:35,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093310096] [2020-11-29 23:35:35,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:35,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:35,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:35,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:35,107 INFO L87 Difference]: Start difference. First operand 2362 states and 2637 transitions. Second operand 3 states. [2020-11-29 23:35:35,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:35,656 INFO L93 Difference]: Finished difference Result 4591 states and 5134 transitions. [2020-11-29 23:35:35,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:35,657 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-11-29 23:35:35,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:35,668 INFO L225 Difference]: With dead ends: 4591 [2020-11-29 23:35:35,668 INFO L226 Difference]: Without dead ends: 2362 [2020-11-29 23:35:35,671 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 23:35:35,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-11-29 23:35:35,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2362. [2020-11-29 23:35:35,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2020-11-29 23:35:35,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2594 transitions. [2020-11-29 23:35:35,718 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2594 transitions. Word has length 127 [2020-11-29 23:35:35,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:35,719 INFO L481 AbstractCegarLoop]: Abstraction has 2362 states and 2594 transitions. [2020-11-29 23:35:35,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:35,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2594 transitions. [2020-11-29 23:35:35,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-11-29 23:35:35,724 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:35,724 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-11-29 23:35:35,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 23:35:35,725 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:35,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:35,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1135125440, now seen corresponding path program 1 times [2020-11-29 23:35:35,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:35,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950250736] [2020-11-29 23:35:35,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:35,782 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-11-29 23:35:35,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950250736] [2020-11-29 23:35:35,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:35,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:35:35,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900361097] [2020-11-29 23:35:35,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:35,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:35,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:35,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:35,786 INFO L87 Difference]: Start difference. First operand 2362 states and 2594 transitions. Second operand 3 states. [2020-11-29 23:35:36,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:36,398 INFO L93 Difference]: Finished difference Result 5377 states and 5944 transitions. [2020-11-29 23:35:36,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:36,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2020-11-29 23:35:36,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:36,414 INFO L225 Difference]: With dead ends: 5377 [2020-11-29 23:35:36,414 INFO L226 Difference]: Without dead ends: 3148 [2020-11-29 23:35:36,418 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 23:35:36,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2020-11-29 23:35:36,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3017. [2020-11-29 23:35:36,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3017 states. [2020-11-29 23:35:36,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3345 transitions. [2020-11-29 23:35:36,483 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3345 transitions. Word has length 136 [2020-11-29 23:35:36,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:36,483 INFO L481 AbstractCegarLoop]: Abstraction has 3017 states and 3345 transitions. [2020-11-29 23:35:36,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:36,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3345 transitions. [2020-11-29 23:35:36,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-11-29 23:35:36,489 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:36,489 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 23:35:36,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 23:35:36,490 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:36,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:36,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1637391207, now seen corresponding path program 1 times [2020-11-29 23:35:36,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:36,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346707396] [2020-11-29 23:35:36,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:36,573 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-11-29 23:35:36,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346707396] [2020-11-29 23:35:36,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:36,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:35:36,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034113192] [2020-11-29 23:35:36,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:36,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:36,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:36,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:36,577 INFO L87 Difference]: Start difference. First operand 3017 states and 3345 transitions. Second operand 3 states. [2020-11-29 23:35:37,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:37,151 INFO L93 Difference]: Finished difference Result 6032 states and 6690 transitions. [2020-11-29 23:35:37,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:37,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2020-11-29 23:35:37,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:37,166 INFO L225 Difference]: With dead ends: 6032 [2020-11-29 23:35:37,166 INFO L226 Difference]: Without dead ends: 3148 [2020-11-29 23:35:37,169 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 23:35:37,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2020-11-29 23:35:37,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3017. [2020-11-29 23:35:37,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3017 states. [2020-11-29 23:35:37,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3335 transitions. [2020-11-29 23:35:37,229 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3335 transitions. Word has length 155 [2020-11-29 23:35:37,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:37,229 INFO L481 AbstractCegarLoop]: Abstraction has 3017 states and 3335 transitions. [2020-11-29 23:35:37,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:37,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3335 transitions. [2020-11-29 23:35:37,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-11-29 23:35:37,235 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:37,236 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 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] [2020-11-29 23:35:37,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 23:35:37,236 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:37,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:37,237 INFO L82 PathProgramCache]: Analyzing trace with hash -954415027, now seen corresponding path program 1 times [2020-11-29 23:35:37,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:37,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014573879] [2020-11-29 23:35:37,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-11-29 23:35:37,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014573879] [2020-11-29 23:35:37,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:37,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:35:37,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45526461] [2020-11-29 23:35:37,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:35:37,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:37,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:35:37,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:35:37,363 INFO L87 Difference]: Start difference. First operand 3017 states and 3335 transitions. Second operand 4 states. [2020-11-29 23:35:38,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:38,311 INFO L93 Difference]: Finished difference Result 6163 states and 6820 transitions. [2020-11-29 23:35:38,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:35:38,312 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 171 [2020-11-29 23:35:38,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:38,327 INFO L225 Difference]: With dead ends: 6163 [2020-11-29 23:35:38,327 INFO L226 Difference]: Without dead ends: 3279 [2020-11-29 23:35:38,331 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 23:35:38,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2020-11-29 23:35:38,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3017. [2020-11-29 23:35:38,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3017 states. [2020-11-29 23:35:38,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 3315 transitions. [2020-11-29 23:35:38,394 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 3315 transitions. Word has length 171 [2020-11-29 23:35:38,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:38,394 INFO L481 AbstractCegarLoop]: Abstraction has 3017 states and 3315 transitions. [2020-11-29 23:35:38,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:35:38,395 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 3315 transitions. [2020-11-29 23:35:38,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-11-29 23:35:38,401 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:38,402 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:35:38,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 23:35:38,402 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:38,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:38,403 INFO L82 PathProgramCache]: Analyzing trace with hash -2143835308, now seen corresponding path program 1 times [2020-11-29 23:35:38,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:38,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060015994] [2020-11-29 23:35:38,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:38,548 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 130 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-11-29 23:35:38,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060015994] [2020-11-29 23:35:38,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317397432] [2020-11-29 23:35:38,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/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 23:35:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:38,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:38,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:38,969 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-11-29 23:35:38,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:35:38,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 23:35:38,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031781959] [2020-11-29 23:35:38,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:38,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:38,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:38,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:35:38,973 INFO L87 Difference]: Start difference. First operand 3017 states and 3315 transitions. Second operand 3 states. [2020-11-29 23:35:39,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:39,665 INFO L93 Difference]: Finished difference Result 6687 states and 7392 transitions. [2020-11-29 23:35:39,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:39,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-11-29 23:35:39,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:39,686 INFO L225 Difference]: With dead ends: 6687 [2020-11-29 23:35:39,686 INFO L226 Difference]: Without dead ends: 3803 [2020-11-29 23:35:39,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:35:39,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2020-11-29 23:35:39,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3148. [2020-11-29 23:35:39,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3148 states. [2020-11-29 23:35:39,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3458 transitions. [2020-11-29 23:35:39,772 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3458 transitions. Word has length 188 [2020-11-29 23:35:39,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:39,774 INFO L481 AbstractCegarLoop]: Abstraction has 3148 states and 3458 transitions. [2020-11-29 23:35:39,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:39,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3458 transitions. [2020-11-29 23:35:39,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-11-29 23:35:39,782 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:39,783 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-11-29 23:35:40,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-29 23:35:40,009 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:40,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:40,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1013321488, now seen corresponding path program 1 times [2020-11-29 23:35:40,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:40,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984192359] [2020-11-29 23:35:40,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:40,166 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 163 proven. 6 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-11-29 23:35:40,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984192359] [2020-11-29 23:35:40,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767655955] [2020-11-29 23:35:40,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/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 23:35:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:40,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:40,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:40,504 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-11-29 23:35:40,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:35:40,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 23:35:40,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879306465] [2020-11-29 23:35:40,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:40,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:40,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:40,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:35:40,511 INFO L87 Difference]: Start difference. First operand 3148 states and 3458 transitions. Second operand 3 states. [2020-11-29 23:35:41,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:41,124 INFO L93 Difference]: Finished difference Result 3543 states and 3897 transitions. [2020-11-29 23:35:41,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:41,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-11-29 23:35:41,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:41,152 INFO L225 Difference]: With dead ends: 3543 [2020-11-29 23:35:41,152 INFO L226 Difference]: Without dead ends: 3541 [2020-11-29 23:35:41,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 220 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 23:35:41,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3541 states. [2020-11-29 23:35:41,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3541 to 3410. [2020-11-29 23:35:41,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3410 states. [2020-11-29 23:35:41,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 3755 transitions. [2020-11-29 23:35:41,223 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 3755 transitions. Word has length 221 [2020-11-29 23:35:41,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:41,224 INFO L481 AbstractCegarLoop]: Abstraction has 3410 states and 3755 transitions. [2020-11-29 23:35:41,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:41,224 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 3755 transitions. [2020-11-29 23:35:41,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-11-29 23:35:41,234 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:41,234 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:35:41,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-29 23:35:41,457 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:41,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:41,458 INFO L82 PathProgramCache]: Analyzing trace with hash -300742697, now seen corresponding path program 1 times [2020-11-29 23:35:41,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:41,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670969426] [2020-11-29 23:35:41,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:41,834 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 162 proven. 49 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-11-29 23:35:41,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670969426] [2020-11-29 23:35:41,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713454818] [2020-11-29 23:35:41,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/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 23:35:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:41,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:41,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-11-29 23:35:42,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:35:42,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-29 23:35:42,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458539392] [2020-11-29 23:35:42,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:42,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:42,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:42,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:35:42,087 INFO L87 Difference]: Start difference. First operand 3410 states and 3755 transitions. Second operand 3 states. [2020-11-29 23:35:42,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:42,796 INFO L93 Difference]: Finished difference Result 6687 states and 7374 transitions. [2020-11-29 23:35:42,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:42,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-11-29 23:35:42,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:42,804 INFO L225 Difference]: With dead ends: 6687 [2020-11-29 23:35:42,804 INFO L226 Difference]: Without dead ends: 3410 [2020-11-29 23:35:42,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:35:42,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2020-11-29 23:35:42,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 3148. [2020-11-29 23:35:42,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3148 states. [2020-11-29 23:35:42,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3428 transitions. [2020-11-29 23:35:42,868 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3428 transitions. Word has length 234 [2020-11-29 23:35:42,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:42,868 INFO L481 AbstractCegarLoop]: Abstraction has 3148 states and 3428 transitions. [2020-11-29 23:35:42,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:42,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3428 transitions. [2020-11-29 23:35:42,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-11-29 23:35:42,879 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:42,879 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:35:43,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-29 23:35:43,105 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:43,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:43,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1425291763, now seen corresponding path program 1 times [2020-11-29 23:35:43,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:43,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090834891] [2020-11-29 23:35:43,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:43,282 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 194 proven. 6 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2020-11-29 23:35:43,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090834891] [2020-11-29 23:35:43,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768999083] [2020-11-29 23:35:43,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/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 23:35:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:43,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 23:35:43,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:43,523 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-11-29 23:35:43,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:35:43,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 23:35:43,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538285846] [2020-11-29 23:35:43,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:43,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:43,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:43,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:35:43,527 INFO L87 Difference]: Start difference. First operand 3148 states and 3428 transitions. Second operand 3 states. [2020-11-29 23:35:44,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:44,211 INFO L93 Difference]: Finished difference Result 6030 states and 6567 transitions. [2020-11-29 23:35:44,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:44,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2020-11-29 23:35:44,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:44,213 INFO L225 Difference]: With dead ends: 6030 [2020-11-29 23:35:44,213 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:35:44,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 245 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 23:35:44,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:35:44,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:35:44,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:35:44,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:35:44,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 246 [2020-11-29 23:35:44,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:44,222 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:35:44,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:44,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:35:44,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:35:44,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:44,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 23:35:44,857 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-11-29 23:35:45,163 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-11-29 23:35:45,167 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-29 23:35:45,167 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-29 23:35:45,167 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-29 23:35:45,168 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-29 23:35:45,168 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-29 23:35:45,168 INFO L274 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-11-29 23:35:45,168 INFO L274 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-11-29 23:35:45,168 INFO L274 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-11-29 23:35:45,168 INFO L274 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,168 INFO L274 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,168 INFO L274 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,168 INFO L274 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,168 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-11-29 23:35:45,169 INFO L274 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,169 INFO L274 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,169 INFO L274 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-11-29 23:35:45,169 INFO L274 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-11-29 23:35:45,169 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-29 23:35:45,169 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-29 23:35:45,169 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-29 23:35:45,169 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-29 23:35:45,169 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-29 23:35:45,169 INFO L274 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-11-29 23:35:45,170 INFO L274 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-11-29 23:35:45,170 INFO L274 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-11-29 23:35:45,170 INFO L274 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-11-29 23:35:45,170 INFO L274 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-11-29 23:35:45,170 INFO L274 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,170 INFO L274 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,170 INFO L274 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,170 INFO L274 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,170 INFO L274 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,170 INFO L274 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-11-29 23:35:45,171 INFO L274 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,171 INFO L274 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-11-29 23:35:45,171 INFO L274 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-11-29 23:35:45,171 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-29 23:35:45,171 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-29 23:35:45,171 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-29 23:35:45,171 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-29 23:35:45,171 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-29 23:35:45,171 INFO L274 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2020-11-29 23:35:45,171 INFO L274 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-11-29 23:35:45,172 INFO L274 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-11-29 23:35:45,172 INFO L274 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-11-29 23:35:45,172 INFO L274 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-11-29 23:35:45,172 INFO L274 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-11-29 23:35:45,172 INFO L274 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-11-29 23:35:45,172 INFO L274 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,172 INFO L274 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,172 INFO L274 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,172 INFO L274 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,172 INFO L274 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,173 INFO L274 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,173 INFO L274 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-11-29 23:35:45,173 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-29 23:35:45,176 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-29 23:35:45,176 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-29 23:35:45,176 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-29 23:35:45,176 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-29 23:35:45,177 INFO L274 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-11-29 23:35:45,177 INFO L274 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-11-29 23:35:45,177 INFO L274 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-11-29 23:35:45,177 INFO L274 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-11-29 23:35:45,177 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 23:35:45,177 INFO L274 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-11-29 23:35:45,177 INFO L274 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-11-29 23:35:45,178 INFO L274 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,178 INFO L274 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,178 INFO L274 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,178 INFO L274 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,178 INFO L274 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,178 INFO L274 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,178 INFO L274 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-11-29 23:35:45,179 INFO L274 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-11-29 23:35:45,179 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-29 23:35:45,179 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-29 23:35:45,179 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-29 23:35:45,179 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-29 23:35:45,179 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-29 23:35:45,180 INFO L274 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2020-11-29 23:35:45,180 INFO L274 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-11-29 23:35:45,180 INFO L274 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-11-29 23:35:45,180 INFO L274 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,180 INFO L274 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,180 INFO L274 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,180 INFO L274 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,181 INFO L274 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,181 INFO L274 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,181 INFO L274 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-11-29 23:35:45,183 INFO L274 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-11-29 23:35:45,183 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-29 23:35:45,184 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-29 23:35:45,184 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-29 23:35:45,184 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-29 23:35:45,184 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-29 23:35:45,184 INFO L274 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2020-11-29 23:35:45,184 INFO L274 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-11-29 23:35:45,185 INFO L274 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-11-29 23:35:45,185 INFO L274 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-11-29 23:35:45,185 INFO L274 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-11-29 23:35:45,185 INFO L274 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-11-29 23:35:45,185 INFO L274 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-11-29 23:35:45,185 INFO L274 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-11-29 23:35:45,185 INFO L274 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,185 INFO L274 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,186 INFO L274 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,186 INFO L274 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,186 INFO L274 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,186 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 23:35:45,186 INFO L274 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-11-29 23:35:45,186 INFO L274 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-11-29 23:35:45,186 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-29 23:35:45,186 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-29 23:35:45,186 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-29 23:35:45,186 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-29 23:35:45,186 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-29 23:35:45,186 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-29 23:35:45,186 INFO L274 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-11-29 23:35:45,187 INFO L270 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse2 (<= ~a8~0 13)) (.cse0 (<= ~a16~0 4)) (.cse5 (= ~a20~0 1)) (.cse12 (= ~a17~0 1))) (let ((.cse7 (<= 15 ~a8~0)) (.cse3 (not .cse12)) (.cse6 (let ((.cse11 (= ~a7~0 0))) (or (and .cse11 .cse2) (and .cse0 .cse5 .cse11 .cse12)))) (.cse10 (not .cse5)) (.cse1 (<= ~a21~0 0)) (.cse8 (<= 14 ~a8~0)) (.cse4 (= ~a21~0 1)) (.cse9 (<= ~a16~0 5))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse4 .cse5 .cse6) (and .cse4 .cse7) (and .cse8 .cse9 .cse3 .cse10) (and .cse3 .cse10 .cse7) (and .cse0 .cse5 .cse2) (and .cse9 .cse3 .cse6 .cse10) (and .cse1 .cse5 .cse2) (and .cse8 .cse4 .cse9 .cse5)))) [2020-11-29 23:35:45,187 INFO L274 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,187 INFO L274 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,187 INFO L274 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,188 INFO L274 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,188 INFO L274 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,188 INFO L274 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-11-29 23:35:45,188 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-29 23:35:45,188 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-29 23:35:45,188 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-29 23:35:45,188 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-29 23:35:45,189 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-29 23:35:45,189 INFO L274 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-11-29 23:35:45,189 INFO L274 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-11-29 23:35:45,189 INFO L274 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-11-29 23:35:45,189 INFO L274 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-11-29 23:35:45,189 INFO L274 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-11-29 23:35:45,189 INFO L274 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-11-29 23:35:45,190 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 23:35:45,190 INFO L274 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-11-29 23:35:45,190 INFO L277 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-11-29 23:35:45,190 INFO L274 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,190 INFO L274 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,190 INFO L274 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,190 INFO L274 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,190 INFO L274 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,190 INFO L274 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-11-29 23:35:45,190 INFO L274 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-11-29 23:35:45,190 INFO L274 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-11-29 23:35:45,191 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-29 23:35:45,191 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-29 23:35:45,191 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-29 23:35:45,191 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-29 23:35:45,191 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-29 23:35:45,191 INFO L274 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-11-29 23:35:45,191 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 23:35:45,191 INFO L274 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,191 INFO L274 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,191 INFO L274 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,191 INFO L274 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,191 INFO L274 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-11-29 23:35:45,192 INFO L274 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,192 INFO L274 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-11-29 23:35:45,192 INFO L274 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-11-29 23:35:45,192 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-29 23:35:45,192 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-29 23:35:45,192 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-29 23:35:45,192 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-29 23:35:45,192 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-29 23:35:45,193 INFO L274 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-11-29 23:35:45,193 INFO L274 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-11-29 23:35:45,193 INFO L274 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-11-29 23:35:45,193 INFO L274 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-11-29 23:35:45,193 INFO L274 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-11-29 23:35:45,193 INFO L274 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-11-29 23:35:45,193 INFO L274 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,194 INFO L270 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse2 (<= ~a8~0 13)) (.cse0 (<= ~a16~0 4)) (.cse5 (= ~a20~0 1)) (.cse12 (= ~a17~0 1))) (let ((.cse7 (<= 15 ~a8~0)) (.cse3 (not .cse12)) (.cse6 (let ((.cse11 (= ~a7~0 0))) (or (and .cse11 .cse2) (and .cse0 .cse5 .cse11 .cse12)))) (.cse10 (not .cse5)) (.cse1 (<= ~a21~0 0)) (.cse8 (<= 14 ~a8~0)) (.cse4 (= ~a21~0 1)) (.cse9 (<= ~a16~0 5))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse4 .cse5 .cse6) (and .cse4 .cse7) (and .cse8 .cse9 .cse3 .cse10) (and .cse3 .cse10 .cse7) (and .cse0 .cse5 .cse2) (and .cse9 .cse3 .cse6 .cse10) (and .cse1 .cse5 .cse2) (and .cse8 .cse4 .cse9 .cse5)))) [2020-11-29 23:35:45,194 INFO L274 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,194 INFO L274 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,194 INFO L274 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,194 INFO L274 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,195 INFO L274 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-11-29 23:35:45,195 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 23:35:45,195 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 23:35:45,195 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-29 23:35:45,195 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-29 23:35:45,195 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-29 23:35:45,195 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-29 23:35:45,196 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-29 23:35:45,196 INFO L274 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-11-29 23:35:45,196 INFO L274 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-11-29 23:35:45,196 INFO L274 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,196 INFO L274 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,196 INFO L274 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,196 INFO L274 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,197 INFO L274 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:45,197 INFO L274 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-11-29 23:35:45,197 INFO L274 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-11-29 23:35:45,197 INFO L274 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-11-29 23:35:45,197 INFO L274 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-11-29 23:35:45,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:35:45 BoogieIcfgContainer [2020-11-29 23:35:45,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:35:45,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:35:45,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:35:45,223 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:35:45,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:35:27" (3/4) ... [2020-11-29 23:35:45,227 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:35:45,258 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 23:35:45,259 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 23:35:45,261 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:35:45,262 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:35:45,439 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6bcc3ca5-55f5-45e8-9984-fd990f7266d6/bin/uautomizer/witness.graphml [2020-11-29 23:35:45,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:35:45,441 INFO L168 Benchmark]: Toolchain (without parser) took 20871.38 ms. Allocated memory was 86.0 MB in the beginning and 455.1 MB in the end (delta: 369.1 MB). Free memory was 42.6 MB in the beginning and 288.8 MB in the end (delta: -246.2 MB). Peak memory consumption was 123.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:45,441 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory is still 60.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:35:45,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 939.76 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 42.4 MB in the beginning and 67.1 MB in the end (delta: -24.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:45,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.62 ms. Allocated memory is still 115.3 MB. Free memory was 67.1 MB in the beginning and 61.3 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:45,442 INFO L168 Benchmark]: Boogie Preprocessor took 95.30 ms. Allocated memory is still 115.3 MB. Free memory was 61.3 MB in the beginning and 56.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:45,443 INFO L168 Benchmark]: RCFGBuilder took 1660.41 ms. Allocated memory is still 115.3 MB. Free memory was 56.7 MB in the beginning and 46.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:45,443 INFO L168 Benchmark]: TraceAbstraction took 17810.81 ms. Allocated memory was 115.3 MB in the beginning and 455.1 MB in the end (delta: 339.7 MB). Free memory was 45.5 MB in the beginning and 303.5 MB in the end (delta: -258.1 MB). Peak memory consumption was 82.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:45,444 INFO L168 Benchmark]: Witness Printer took 216.66 ms. Allocated memory is still 455.1 MB. Free memory was 303.5 MB in the beginning and 288.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:45,446 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory is still 60.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 939.76 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 42.4 MB in the beginning and 67.1 MB in the end (delta: -24.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 138.62 ms. Allocated memory is still 115.3 MB. Free memory was 67.1 MB in the beginning and 61.3 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 95.30 ms. Allocated memory is still 115.3 MB. Free memory was 61.3 MB in the beginning and 56.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1660.41 ms. Allocated memory is still 115.3 MB. Free memory was 56.7 MB in the beginning and 46.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17810.81 ms. Allocated memory was 115.3 MB in the beginning and 455.1 MB in the end (delta: 339.7 MB). Free memory was 45.5 MB in the beginning and 303.5 MB in the end (delta: -258.1 MB). Peak memory consumption was 82.2 MB. Max. memory is 16.1 GB. * Witness Printer took 216.66 ms. Allocated memory is still 455.1 MB. Free memory was 303.5 MB in the beginning and 288.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 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: 40]: Loop Invariant Derived loop invariant: ((((((((((a16 <= 4 && a21 <= 0) && a8 <= 13) || ((a16 <= 4 && !(a17 == 1)) && a8 <= 13)) || ((a21 == 1 && a20 == 1) && ((a7 == 0 && a8 <= 13) || (((a16 <= 4 && a20 == 1) && a7 == 0) && a17 == 1)))) || (a21 == 1 && 15 <= a8)) || (((14 <= a8 && a16 <= 5) && !(a17 == 1)) && !(a20 == 1))) || ((!(a17 == 1) && !(a20 == 1)) && 15 <= a8)) || ((a16 <= 4 && a20 == 1) && a8 <= 13)) || (((a16 <= 5 && !(a17 == 1)) && ((a7 == 0 && a8 <= 13) || (((a16 <= 4 && a20 == 1) && a7 == 0) && a17 == 1))) && !(a20 == 1))) || ((a21 <= 0 && a20 == 1) && a8 <= 13)) || (((14 <= a8 && a21 == 1) && a16 <= 5) && a20 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((((((((a16 <= 4 && a21 <= 0) && a8 <= 13) || ((a16 <= 4 && !(a17 == 1)) && a8 <= 13)) || ((a21 == 1 && a20 == 1) && ((a7 == 0 && a8 <= 13) || (((a16 <= 4 && a20 == 1) && a7 == 0) && a17 == 1)))) || (a21 == 1 && 15 <= a8)) || (((14 <= a8 && a16 <= 5) && !(a17 == 1)) && !(a20 == 1))) || ((!(a17 == 1) && !(a20 == 1)) && 15 <= a8)) || ((a16 <= 4 && a20 == 1) && a8 <= 13)) || (((a16 <= 5 && !(a17 == 1)) && ((a7 == 0 && a8 <= 13) || (((a16 <= 4 && a20 == 1) && a7 == 0) && a17 == 1))) && !(a20 == 1))) || ((a21 <= 0 && a20 == 1) && a8 <= 13)) || (((14 <= a8 && a21 == 1) && a16 <= 5) && a20 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.9s, OverallIterations: 15, TraceHistogramMax: 7, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1110 SDtfs, 1883 SDslu, 92 SDs, 0 SdLazy, 5397 SolverSat, 744 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 929 GetRequests, 899 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3410occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 15 MinimizatonAttempts, 2882 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 55 NumberOfFragments, 301 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2804 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 190 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 3148 NumberOfCodeBlocks, 3148 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3129 ConstructedInterpolants, 0 QuantifiedInterpolants, 1276198 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1811 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 19 InterpolantComputations, 15 PerfectInterpolantSequences, 2465/2532 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...