./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label51.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_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label51.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/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 9b662101800a9cac954243c459de117719237e24 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 19:08:41,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:08:41,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:08:41,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:08:41,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:08:41,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:08:41,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:08:41,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:08:41,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:08:41,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:08:41,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:08:41,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:08:41,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:08:41,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:08:41,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:08:41,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:08:41,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:08:41,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:08:41,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:08:41,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:08:41,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:08:41,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:08:41,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:08:41,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:08:41,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:08:41,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:08:41,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:08:41,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:08:41,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:08:41,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:08:41,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:08:41,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:08:41,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:08:41,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:08:41,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:08:41,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:08:41,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:08:41,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:08:41,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:08:41,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:08:41,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:08:41,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:08:41,752 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:08:41,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:08:41,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:08:41,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:08:41,754 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:08:41,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:08:41,755 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:08:41,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:08:41,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:08:41,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:08:41,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:08:41,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:08:41,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:08:41,757 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:08:41,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:08:41,758 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:08:41,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:08:41,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:08:41,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:08:41,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:08:41,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:08:41,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:08:41,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:08:41,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:08:41,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:08:41,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:08:41,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:08:41,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:08:41,761 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:08:41,761 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_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b662101800a9cac954243c459de117719237e24 [2020-11-29 19:08:42,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:08:42,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:08:42,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:08:42,188 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:08:42,189 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:08:42,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label51.c [2020-11-29 19:08:42,265 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/bin/uautomizer/data/63c8456fd/b0541e1f465849649202cec9bda7a372/FLAGd8faf7b21 [2020-11-29 19:08:42,876 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:08:42,878 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/sv-benchmarks/c/eca-rers2012/Problem01_label51.c [2020-11-29 19:08:42,895 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/bin/uautomizer/data/63c8456fd/b0541e1f465849649202cec9bda7a372/FLAGd8faf7b21 [2020-11-29 19:08:43,078 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/bin/uautomizer/data/63c8456fd/b0541e1f465849649202cec9bda7a372 [2020-11-29 19:08:43,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:08:43,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:08:43,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:08:43,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:08:43,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:08:43,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:08:43" (1/1) ... [2020-11-29 19:08:43,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432c5ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:43, skipping insertion in model container [2020-11-29 19:08:43,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:08:43" (1/1) ... [2020-11-29 19:08:43,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:08:43,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:08:43,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:08:43,557 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:08:43,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:08:43,705 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:08:43,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:43 WrapperNode [2020-11-29 19:08:43,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:08:43,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:08:43,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:08:43,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:08:43,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:43" (1/1) ... [2020-11-29 19:08:43,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:43" (1/1) ... [2020-11-29 19:08:43,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:08:43,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:08:43,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:08:43,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:08:43,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:43" (1/1) ... [2020-11-29 19:08:43,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:43" (1/1) ... [2020-11-29 19:08:43,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:43" (1/1) ... [2020-11-29 19:08:43,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:43" (1/1) ... [2020-11-29 19:08:43,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:43" (1/1) ... [2020-11-29 19:08:43,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:43" (1/1) ... [2020-11-29 19:08:43,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:43" (1/1) ... [2020-11-29 19:08:43,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:08:43,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:08:43,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:08:43,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:08:43,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/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 19:08:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:08:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:08:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:08:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:08:45,471 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:08:45,472 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 19:08:45,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:45 BoogieIcfgContainer [2020-11-29 19:08:45,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:08:45,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:08:45,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:08:45,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:08:45,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:08:43" (1/3) ... [2020-11-29 19:08:45,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4c3585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:08:45, skipping insertion in model container [2020-11-29 19:08:45,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:43" (2/3) ... [2020-11-29 19:08:45,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4c3585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:08:45, skipping insertion in model container [2020-11-29 19:08:45,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:45" (3/3) ... [2020-11-29 19:08:45,486 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label51.c [2020-11-29 19:08:45,501 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:08:45,506 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:08:45,519 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:08:45,547 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:08:45,548 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:08:45,548 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:08:45,548 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:08:45,548 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:08:45,548 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:08:45,548 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:08:45,548 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:08:45,567 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-11-29 19:08:45,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-29 19:08:45,578 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:08:45,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:08:45,580 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:08:45,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:08:45,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1145971337, now seen corresponding path program 1 times [2020-11-29 19:08:45,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:08:45,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220144177] [2020-11-29 19:08:45,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:08:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:46,009 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 19:08:46,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220144177] [2020-11-29 19:08:46,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:08:46,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:08:46,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391634425] [2020-11-29 19:08:46,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:08:46,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:08:46,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:08:46,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:08:46,042 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-11-29 19:08:47,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:08:47,086 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-11-29 19:08:47,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:08:47,087 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-11-29 19:08:47,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:08:47,110 INFO L225 Difference]: With dead ends: 529 [2020-11-29 19:08:47,113 INFO L226 Difference]: Without dead ends: 266 [2020-11-29 19:08:47,122 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 19:08:47,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-29 19:08:47,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-29 19:08:47,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-29 19:08:47,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2020-11-29 19:08:47,180 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 106 [2020-11-29 19:08:47,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:08:47,181 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2020-11-29 19:08:47,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:08:47,182 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2020-11-29 19:08:47,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-11-29 19:08:47,185 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:08:47,185 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:08:47,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:08:47,186 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:08:47,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:08:47,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1201805644, now seen corresponding path program 1 times [2020-11-29 19:08:47,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:08:47,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607739938] [2020-11-29 19:08:47,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:08:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:47,300 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 19:08:47,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607739938] [2020-11-29 19:08:47,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:08:47,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:08:47,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097775570] [2020-11-29 19:08:47,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:08:47,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:08:47,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:08:47,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:08:47,311 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 3 states. [2020-11-29 19:08:48,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:08:48,069 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2020-11-29 19:08:48,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:08:48,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-11-29 19:08:48,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:08:48,076 INFO L225 Difference]: With dead ends: 792 [2020-11-29 19:08:48,076 INFO L226 Difference]: Without dead ends: 528 [2020-11-29 19:08:48,078 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 19:08:48,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-11-29 19:08:48,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-11-29 19:08:48,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-29 19:08:48,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 709 transitions. [2020-11-29 19:08:48,148 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 709 transitions. Word has length 112 [2020-11-29 19:08:48,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:08:48,149 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 709 transitions. [2020-11-29 19:08:48,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:08:48,150 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 709 transitions. [2020-11-29 19:08:48,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-11-29 19:08:48,160 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:08:48,160 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:08:48,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:08:48,161 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:08:48,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:08:48,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1750887348, now seen corresponding path program 1 times [2020-11-29 19:08:48,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:08:48,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044684195] [2020-11-29 19:08:48,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:08:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:48,526 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:08:48,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044684195] [2020-11-29 19:08:48,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:08:48,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:08:48,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163522883] [2020-11-29 19:08:48,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:08:48,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:08:48,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:08:48,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:08:48,529 INFO L87 Difference]: Start difference. First operand 528 states and 709 transitions. Second operand 4 states. [2020-11-29 19:08:49,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:08:49,458 INFO L93 Difference]: Finished difference Result 1411 states and 1882 transitions. [2020-11-29 19:08:49,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:08:49,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 113 [2020-11-29 19:08:49,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:08:49,464 INFO L225 Difference]: With dead ends: 1411 [2020-11-29 19:08:49,465 INFO L226 Difference]: Without dead ends: 790 [2020-11-29 19:08:49,466 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 19:08:49,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2020-11-29 19:08:49,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 659. [2020-11-29 19:08:49,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-11-29 19:08:49,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 783 transitions. [2020-11-29 19:08:49,503 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 783 transitions. Word has length 113 [2020-11-29 19:08:49,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:08:49,503 INFO L481 AbstractCegarLoop]: Abstraction has 659 states and 783 transitions. [2020-11-29 19:08:49,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:08:49,503 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 783 transitions. [2020-11-29 19:08:49,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-11-29 19:08:49,506 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:08:49,506 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:08:49,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 19:08:49,507 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:08:49,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:08:49,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1909642184, now seen corresponding path program 1 times [2020-11-29 19:08:49,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:08:49,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960206441] [2020-11-29 19:08:49,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:08:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:08:49,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960206441] [2020-11-29 19:08:49,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:08:49,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:08:49,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590196827] [2020-11-29 19:08:49,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:08:49,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:08:49,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:08:49,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:08:49,672 INFO L87 Difference]: Start difference. First operand 659 states and 783 transitions. Second operand 4 states. [2020-11-29 19:08:50,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:08:50,529 INFO L93 Difference]: Finished difference Result 1709 states and 2065 transitions. [2020-11-29 19:08:50,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:08:50,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2020-11-29 19:08:50,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:08:50,536 INFO L225 Difference]: With dead ends: 1709 [2020-11-29 19:08:50,536 INFO L226 Difference]: Without dead ends: 1052 [2020-11-29 19:08:50,537 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 19:08:50,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-11-29 19:08:50,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2020-11-29 19:08:50,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-11-29 19:08:50,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1255 transitions. [2020-11-29 19:08:50,571 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1255 transitions. Word has length 121 [2020-11-29 19:08:50,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:08:50,572 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1255 transitions. [2020-11-29 19:08:50,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:08:50,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1255 transitions. [2020-11-29 19:08:50,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-11-29 19:08:50,576 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:08:50,576 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:08:50,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 19:08:50,577 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:08:50,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:08:50,577 INFO L82 PathProgramCache]: Analyzing trace with hash -2089966553, now seen corresponding path program 1 times [2020-11-29 19:08:50,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:08:50,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030591962] [2020-11-29 19:08:50,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:08:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:50,688 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-29 19:08:50,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030591962] [2020-11-29 19:08:50,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:08:50,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:08:50,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282956899] [2020-11-29 19:08:50,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:08:50,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:08:50,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:08:50,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:08:50,690 INFO L87 Difference]: Start difference. First operand 1052 states and 1255 transitions. Second operand 3 states. [2020-11-29 19:08:51,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:08:51,390 INFO L93 Difference]: Finished difference Result 2757 states and 3253 transitions. [2020-11-29 19:08:51,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:08:51,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-11-29 19:08:51,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:08:51,404 INFO L225 Difference]: With dead ends: 2757 [2020-11-29 19:08:51,404 INFO L226 Difference]: Without dead ends: 1707 [2020-11-29 19:08:51,406 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 19:08:51,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2020-11-29 19:08:51,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1314. [2020-11-29 19:08:51,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-11-29 19:08:51,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1553 transitions. [2020-11-29 19:08:51,453 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1553 transitions. Word has length 132 [2020-11-29 19:08:51,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:08:51,453 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1553 transitions. [2020-11-29 19:08:51,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:08:51,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1553 transitions. [2020-11-29 19:08:51,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-11-29 19:08:51,457 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:08:51,457 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:08:51,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 19:08:51,457 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:08:51,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:08:51,459 INFO L82 PathProgramCache]: Analyzing trace with hash 571734, now seen corresponding path program 1 times [2020-11-29 19:08:51,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:08:51,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241839334] [2020-11-29 19:08:51,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:08:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-29 19:08:51,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241839334] [2020-11-29 19:08:51,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273345082] [2020-11-29 19:08:51,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/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 19:08:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:51,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:08:51,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:08:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-11-29 19:08:51,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:08:51,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 19:08:51,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817063227] [2020-11-29 19:08:51,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:08:51,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:08:51,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:08:51,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:08:51,995 INFO L87 Difference]: Start difference. First operand 1314 states and 1553 transitions. Second operand 3 states. [2020-11-29 19:08:52,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:08:52,622 INFO L93 Difference]: Finished difference Result 3543 states and 4186 transitions. [2020-11-29 19:08:52,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:08:52,623 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-11-29 19:08:52,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:08:52,636 INFO L225 Difference]: With dead ends: 3543 [2020-11-29 19:08:52,636 INFO L226 Difference]: Without dead ends: 2100 [2020-11-29 19:08:52,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:08:52,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2020-11-29 19:08:52,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1969. [2020-11-29 19:08:52,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-11-29 19:08:52,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2258 transitions. [2020-11-29 19:08:52,698 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2258 transitions. Word has length 138 [2020-11-29 19:08:52,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:08:52,699 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2258 transitions. [2020-11-29 19:08:52,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:08:52,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2258 transitions. [2020-11-29 19:08:52,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-11-29 19:08:52,704 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:08:52,705 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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 19:08:52,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-29 19:08:52,940 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:08:52,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:08:52,940 INFO L82 PathProgramCache]: Analyzing trace with hash 899711626, now seen corresponding path program 1 times [2020-11-29 19:08:52,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:08:52,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518076137] [2020-11-29 19:08:52,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:08:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:53,066 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-11-29 19:08:53,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518076137] [2020-11-29 19:08:53,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584899411] [2020-11-29 19:08:53,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/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 19:08:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:53,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:08:53,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:08:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-11-29 19:08:53,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:08:53,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 19:08:53,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483049792] [2020-11-29 19:08:53,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:08:53,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:08:53,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:08:53,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:08:53,287 INFO L87 Difference]: Start difference. First operand 1969 states and 2258 transitions. Second operand 3 states. [2020-11-29 19:08:54,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:08:54,090 INFO L93 Difference]: Finished difference Result 4460 states and 5118 transitions. [2020-11-29 19:08:54,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:08:54,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2020-11-29 19:08:54,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:08:54,113 INFO L225 Difference]: With dead ends: 4460 [2020-11-29 19:08:54,114 INFO L226 Difference]: Without dead ends: 2362 [2020-11-29 19:08:54,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:08:54,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-11-29 19:08:54,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 1969. [2020-11-29 19:08:54,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-11-29 19:08:54,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2244 transitions. [2020-11-29 19:08:54,192 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2244 transitions. Word has length 155 [2020-11-29 19:08:54,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:08:54,193 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2244 transitions. [2020-11-29 19:08:54,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:08:54,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2244 transitions. [2020-11-29 19:08:54,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-11-29 19:08:54,199 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:08:54,200 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:08:54,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:08:54,422 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:08:54,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:08:54,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1808547945, now seen corresponding path program 1 times [2020-11-29 19:08:54,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:08:54,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680028236] [2020-11-29 19:08:54,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:08:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:54,583 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-29 19:08:54,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680028236] [2020-11-29 19:08:54,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515457764] [2020-11-29 19:08:54,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/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 19:08:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:54,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 19:08:54,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:08:54,901 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-29 19:08:54,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:08:54,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 19:08:54,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154394513] [2020-11-29 19:08:54,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:08:54,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:08:54,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:08:54,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:08:54,910 INFO L87 Difference]: Start difference. First operand 1969 states and 2244 transitions. Second operand 3 states. [2020-11-29 19:08:55,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:08:55,675 INFO L93 Difference]: Finished difference Result 4460 states and 5131 transitions. [2020-11-29 19:08:55,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:08:55,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2020-11-29 19:08:55,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:08:55,713 INFO L225 Difference]: With dead ends: 4460 [2020-11-29 19:08:55,713 INFO L226 Difference]: Without dead ends: 2624 [2020-11-29 19:08:55,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:08:55,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2020-11-29 19:08:55,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 1969. [2020-11-29 19:08:55,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-11-29 19:08:55,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2219 transitions. [2020-11-29 19:08:55,780 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2219 transitions. Word has length 155 [2020-11-29 19:08:55,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:08:55,780 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2219 transitions. [2020-11-29 19:08:55,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:08:55,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2219 transitions. [2020-11-29 19:08:55,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-11-29 19:08:55,788 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:08:55,789 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 19:08:56,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:08:56,014 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:08:56,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:08:56,015 INFO L82 PathProgramCache]: Analyzing trace with hash 790214042, now seen corresponding path program 1 times [2020-11-29 19:08:56,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:08:56,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800076466] [2020-11-29 19:08:56,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:08:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:56,154 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-11-29 19:08:56,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800076466] [2020-11-29 19:08:56,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391477450] [2020-11-29 19:08:56,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/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 19:08:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:56,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:08:56,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:08:56,463 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-11-29 19:08:56,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:08:56,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 19:08:56,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215244427] [2020-11-29 19:08:56,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:08:56,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:08:56,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:08:56,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:08:56,468 INFO L87 Difference]: Start difference. First operand 1969 states and 2219 transitions. Second operand 3 states. [2020-11-29 19:08:57,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:08:57,092 INFO L93 Difference]: Finished difference Result 4065 states and 4600 transitions. [2020-11-29 19:08:57,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:08:57,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2020-11-29 19:08:57,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:08:57,094 INFO L225 Difference]: With dead ends: 4065 [2020-11-29 19:08:57,094 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:08:57,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:08:57,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:08:57,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:08:57,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:08:57,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:08:57,100 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 202 [2020-11-29 19:08:57,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:08:57,100 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:08:57,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:08:57,102 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:08:57,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:08:57,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:08:57,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:08:57,583 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2020-11-29 19:08:57,752 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2020-11-29 19:08:57,757 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-29 19:08:57,757 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-29 19:08:57,757 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-29 19:08:57,757 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-29 19:08:57,757 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-29 19:08:57,757 INFO L274 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-11-29 19:08:57,758 INFO L274 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-11-29 19:08:57,758 INFO L274 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-11-29 19:08:57,758 INFO L274 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,758 INFO L274 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,758 INFO L274 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,758 INFO L274 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,758 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-11-29 19:08:57,758 INFO L274 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,759 INFO L274 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,759 INFO L274 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-11-29 19:08:57,759 INFO L274 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-11-29 19:08:57,759 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-29 19:08:57,759 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-29 19:08:57,759 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-29 19:08:57,759 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-29 19:08:57,759 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-29 19:08:57,759 INFO L274 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-11-29 19:08:57,760 INFO L274 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-11-29 19:08:57,760 INFO L274 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-11-29 19:08:57,760 INFO L274 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-11-29 19:08:57,760 INFO L274 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-11-29 19:08:57,760 INFO L274 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,760 INFO L274 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,760 INFO L274 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,760 INFO L274 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,760 INFO L274 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,760 INFO L274 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-11-29 19:08:57,761 INFO L274 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,761 INFO L274 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-11-29 19:08:57,761 INFO L274 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-11-29 19:08:57,761 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-29 19:08:57,761 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-29 19:08:57,761 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-29 19:08:57,761 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-29 19:08:57,761 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-29 19:08:57,761 INFO L274 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2020-11-29 19:08:57,761 INFO L274 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-11-29 19:08:57,766 INFO L274 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-11-29 19:08:57,766 INFO L274 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-11-29 19:08:57,767 INFO L274 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-11-29 19:08:57,767 INFO L274 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-11-29 19:08:57,767 INFO L274 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-11-29 19:08:57,767 INFO L274 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,767 INFO L274 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,768 INFO L274 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,768 INFO L274 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,768 INFO L274 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,768 INFO L274 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,768 INFO L274 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-11-29 19:08:57,768 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-29 19:08:57,769 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-29 19:08:57,769 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-29 19:08:57,769 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-29 19:08:57,769 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-29 19:08:57,769 INFO L274 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-11-29 19:08:57,769 INFO L274 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-11-29 19:08:57,770 INFO L274 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-11-29 19:08:57,770 INFO L274 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-11-29 19:08:57,770 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 19:08:57,770 INFO L274 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-11-29 19:08:57,770 INFO L274 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-11-29 19:08:57,770 INFO L274 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,771 INFO L274 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,771 INFO L274 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,771 INFO L274 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,771 INFO L274 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,771 INFO L274 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,771 INFO L274 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-11-29 19:08:57,772 INFO L274 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-11-29 19:08:57,772 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-29 19:08:57,772 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-29 19:08:57,772 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-29 19:08:57,772 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-29 19:08:57,772 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-29 19:08:57,772 INFO L274 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2020-11-29 19:08:57,773 INFO L274 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-11-29 19:08:57,773 INFO L274 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-11-29 19:08:57,773 INFO L274 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,773 INFO L274 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,773 INFO L274 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,773 INFO L274 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,778 INFO L274 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,779 INFO L274 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,779 INFO L274 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-11-29 19:08:57,779 INFO L274 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-11-29 19:08:57,779 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-29 19:08:57,779 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-29 19:08:57,779 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-29 19:08:57,780 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-29 19:08:57,780 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-29 19:08:57,780 INFO L274 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2020-11-29 19:08:57,783 INFO L274 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-11-29 19:08:57,783 INFO L274 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-11-29 19:08:57,783 INFO L274 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-11-29 19:08:57,784 INFO L274 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-11-29 19:08:57,784 INFO L274 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-11-29 19:08:57,784 INFO L274 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-11-29 19:08:57,784 INFO L274 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-11-29 19:08:57,784 INFO L274 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,784 INFO L274 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,785 INFO L274 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,785 INFO L274 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,785 INFO L274 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,785 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:08:57,785 INFO L274 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-11-29 19:08:57,786 INFO L274 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-11-29 19:08:57,786 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-29 19:08:57,786 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-29 19:08:57,786 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-29 19:08:57,786 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-29 19:08:57,787 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-29 19:08:57,787 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-29 19:08:57,787 INFO L274 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-11-29 19:08:57,788 INFO L270 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (<= 15 ~a8~0)) (.cse4 (<= ~a16~0 5)) (.cse1 (<= ~a20~0 0)) (.cse5 (<= ~a16~0 4)) (.cse3 (= ~a7~0 1)) (.cse2 (= ~a20~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse0) (and .cse3 .cse4) (and (= ~a21~0 1) (= ~a12~0 8) .cse2 (= ~a17~0 1)) (and .cse5 (<= ~a8~0 13)) (and .cse4 .cse1) (and .cse5 .cse2) (and .cse3 .cse2))) [2020-11-29 19:08:57,788 INFO L274 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,788 INFO L274 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,788 INFO L274 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,789 INFO L274 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,789 INFO L274 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,789 INFO L274 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-11-29 19:08:57,789 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-29 19:08:57,789 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-29 19:08:57,790 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-29 19:08:57,790 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-29 19:08:57,790 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-29 19:08:57,790 INFO L274 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-11-29 19:08:57,790 INFO L274 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-11-29 19:08:57,790 INFO L274 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-11-29 19:08:57,791 INFO L274 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-11-29 19:08:57,791 INFO L274 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-11-29 19:08:57,791 INFO L274 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-11-29 19:08:57,791 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:08:57,791 INFO L274 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-11-29 19:08:57,792 INFO L277 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-11-29 19:08:57,792 INFO L274 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,792 INFO L274 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,792 INFO L274 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,792 INFO L274 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,792 INFO L274 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,793 INFO L274 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-11-29 19:08:57,793 INFO L274 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-11-29 19:08:57,793 INFO L274 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-11-29 19:08:57,793 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-29 19:08:57,793 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-29 19:08:57,794 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-29 19:08:57,794 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-29 19:08:57,794 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-29 19:08:57,794 INFO L274 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-11-29 19:08:57,794 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:08:57,794 INFO L274 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,795 INFO L274 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,795 INFO L274 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,795 INFO L274 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,795 INFO L274 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-11-29 19:08:57,795 INFO L274 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,796 INFO L274 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-11-29 19:08:57,796 INFO L274 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-11-29 19:08:57,796 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-29 19:08:57,796 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-29 19:08:57,796 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-29 19:08:57,796 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-29 19:08:57,797 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-29 19:08:57,797 INFO L274 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-11-29 19:08:57,797 INFO L274 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-11-29 19:08:57,797 INFO L274 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-11-29 19:08:57,797 INFO L274 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-11-29 19:08:57,798 INFO L274 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-11-29 19:08:57,798 INFO L274 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-11-29 19:08:57,798 INFO L274 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,800 INFO L270 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (<= 15 ~a8~0)) (.cse4 (<= ~a16~0 5)) (.cse1 (<= ~a20~0 0)) (.cse5 (<= ~a16~0 4)) (.cse3 (= ~a7~0 1)) (.cse2 (= ~a20~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse0) (and .cse3 .cse4) (and (= ~a21~0 1) (= ~a12~0 8) .cse2 (= ~a17~0 1)) (and .cse5 (<= ~a8~0 13)) (and .cse4 .cse1) (and .cse5 .cse2) (and .cse3 .cse2))) [2020-11-29 19:08:57,800 INFO L274 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,800 INFO L274 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,800 INFO L274 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,800 INFO L274 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,801 INFO L274 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-11-29 19:08:57,801 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:08:57,801 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 19:08:57,801 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-29 19:08:57,801 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-29 19:08:57,802 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-29 19:08:57,802 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-29 19:08:57,802 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-29 19:08:57,802 INFO L274 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-11-29 19:08:57,802 INFO L274 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-11-29 19:08:57,802 INFO L274 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,803 INFO L274 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,803 INFO L274 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,803 INFO L274 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,803 INFO L274 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:08:57,803 INFO L274 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-11-29 19:08:57,804 INFO L274 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-11-29 19:08:57,804 INFO L274 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-11-29 19:08:57,804 INFO L274 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-11-29 19:08:57,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:08:57 BoogieIcfgContainer [2020-11-29 19:08:57,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:08:57,852 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:08:57,852 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:08:57,853 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:08:57,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:45" (3/4) ... [2020-11-29 19:08:57,857 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:08:57,896 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 19:08:57,897 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 19:08:57,899 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:08:57,901 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:08:58,109 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5bd5d9ef-0cca-46ad-9856-7c3b7963dbfc/bin/uautomizer/witness.graphml [2020-11-29 19:08:58,109 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:08:58,110 INFO L168 Benchmark]: Toolchain (without parser) took 15027.69 ms. Allocated memory was 86.0 MB in the beginning and 316.7 MB in the end (delta: 230.7 MB). Free memory was 48.0 MB in the beginning and 232.5 MB in the end (delta: -184.5 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:08:58,111 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory is still 66.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:08:58,111 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.05 ms. Allocated memory is still 86.0 MB. Free memory was 47.8 MB in the beginning and 46.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:08:58,112 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.10 ms. Allocated memory is still 86.0 MB. Free memory was 46.0 MB in the beginning and 40.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:08:58,112 INFO L168 Benchmark]: Boogie Preprocessor took 54.93 ms. Allocated memory is still 86.0 MB. Free memory was 40.1 MB in the beginning and 35.6 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:08:58,113 INFO L168 Benchmark]: RCFGBuilder took 1615.34 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 35.6 MB in the beginning and 74.2 MB in the end (delta: -38.6 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:08:58,113 INFO L168 Benchmark]: TraceAbstraction took 12374.65 ms. Allocated memory was 107.0 MB in the beginning and 316.7 MB in the end (delta: 209.7 MB). Free memory was 73.4 MB in the beginning and 248.2 MB in the end (delta: -174.8 MB). Peak memory consumption was 134.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:08:58,115 INFO L168 Benchmark]: Witness Printer took 256.96 ms. Allocated memory is still 316.7 MB. Free memory was 248.2 MB in the beginning and 232.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:08:58,118 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory is still 66.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 626.05 ms. Allocated memory is still 86.0 MB. Free memory was 47.8 MB in the beginning and 46.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.10 ms. Allocated memory is still 86.0 MB. Free memory was 46.0 MB in the beginning and 40.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.93 ms. Allocated memory is still 86.0 MB. Free memory was 40.1 MB in the beginning and 35.6 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1615.34 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 35.6 MB in the beginning and 74.2 MB in the end (delta: -38.6 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12374.65 ms. Allocated memory was 107.0 MB in the beginning and 316.7 MB in the end (delta: 209.7 MB). Free memory was 73.4 MB in the beginning and 248.2 MB in the end (delta: -174.8 MB). Peak memory consumption was 134.0 MB. Max. memory is 16.1 GB. * Witness Printer took 256.96 ms. Allocated memory is still 316.7 MB. Free memory was 248.2 MB in the beginning and 232.5 MB in the end (delta: 15.7 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: (((((((15 <= a8 && a20 <= 0) || (a20 == 1 && 15 <= a8)) || (a7 == 1 && a16 <= 5)) || (((a21 == 1 && a12 == 8) && a20 == 1) && a17 == 1)) || (a16 <= 4 && a8 <= 13)) || (a16 <= 5 && a20 <= 0)) || (a16 <= 4 && a20 == 1)) || (a7 == 1 && a20 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((15 <= a8 && a20 <= 0) || (a20 == 1 && 15 <= a8)) || (a7 == 1 && a16 <= 5)) || (((a21 == 1 && a12 == 8) && a20 == 1) && a17 == 1)) || (a16 <= 4 && a8 <= 13)) || (a16 <= 5 && a20 <= 0)) || (a16 <= 4 && a20 == 1)) || (a7 == 1 && a20 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.7s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 892 SDtfs, 1001 SDslu, 58 SDs, 0 SdLazy, 3273 SolverSat, 530 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 671 GetRequests, 652 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1969occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 1703 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 45 NumberOfFragments, 127 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1490 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1884 NumberOfCodeBlocks, 1884 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1871 ConstructedInterpolants, 0 QuantifiedInterpolants, 762451 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1397 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 764/776 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...