./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label12.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_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/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 74057909fb6c276d17d8009abfa8a9d3a5bed6a1 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:34:47,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:34:47,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:34:48,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:34:48,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:34:48,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:34:48,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:34:48,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:34:48,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:34:48,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:34:48,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:34:48,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:34:48,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:34:48,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:34:48,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:34:48,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:34:48,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:34:48,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:34:48,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:34:48,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:34:48,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:34:48,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:34:48,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:34:48,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:34:48,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:34:48,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:34:48,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:34:48,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:34:48,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:34:48,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:34:48,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:34:48,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:34:48,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:34:48,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:34:48,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:34:48,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:34:48,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:34:48,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:34:48,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:34:48,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:34:48,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:34:48,123 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:34:48,169 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:34:48,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:34:48,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:34:48,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:34:48,172 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:34:48,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:34:48,173 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:34:48,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:34:48,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:34:48,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:34:48,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:34:48,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:34:48,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:34:48,176 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:34:48,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:34:48,176 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:34:48,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:34:48,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:34:48,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:34:48,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:34:48,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:34:48,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:34:48,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:34:48,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:34:48,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:34:48,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:34:48,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:34:48,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:34:48,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:34:48,180 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_e8206e55-8437-4cf0-a9f3-269c08c6839f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74057909fb6c276d17d8009abfa8a9d3a5bed6a1 [2020-11-29 23:34:48,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:34:48,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:34:48,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:34:48,603 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:34:48,605 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:34:48,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label12.c [2020-11-29 23:34:48,711 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/data/f5840e404/2bebf86fc8a24ae18586ff9ff9a2a18b/FLAG42873fda0 [2020-11-29 23:34:49,541 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:34:49,542 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/sv-benchmarks/c/eca-rers2012/Problem01_label12.c [2020-11-29 23:34:49,578 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/data/f5840e404/2bebf86fc8a24ae18586ff9ff9a2a18b/FLAG42873fda0 [2020-11-29 23:34:49,766 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/data/f5840e404/2bebf86fc8a24ae18586ff9ff9a2a18b [2020-11-29 23:34:49,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:34:49,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:34:49,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:34:49,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:34:49,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:34:49,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:34:49" (1/1) ... [2020-11-29 23:34:49,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47314bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:49, skipping insertion in model container [2020-11-29 23:34:49,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:34:49" (1/1) ... [2020-11-29 23:34:49,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:34:49,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:34:50,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:34:50,356 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:34:50,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:34:50,554 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:34:50,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:50 WrapperNode [2020-11-29 23:34:50,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:34:50,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:34:50,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:34:50,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:34:50,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:50" (1/1) ... [2020-11-29 23:34:50,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:50" (1/1) ... [2020-11-29 23:34:50,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:34:50,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:34:50,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:34:50,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:34:50,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:50" (1/1) ... [2020-11-29 23:34:50,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:50" (1/1) ... [2020-11-29 23:34:50,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:50" (1/1) ... [2020-11-29 23:34:50,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:50" (1/1) ... [2020-11-29 23:34:50,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:50" (1/1) ... [2020-11-29 23:34:50,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:50" (1/1) ... [2020-11-29 23:34:50,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:50" (1/1) ... [2020-11-29 23:34:50,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:34:50,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:34:50,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:34:50,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:34:50,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:34:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:34:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:34:50,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:34:50,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:34:52,713 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:34:52,714 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 23:34:52,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:34:52 BoogieIcfgContainer [2020-11-29 23:34:52,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:34:52,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:34:52,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:34:52,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:34:52,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:34:49" (1/3) ... [2020-11-29 23:34:52,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef7fcbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:34:52, skipping insertion in model container [2020-11-29 23:34:52,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:50" (2/3) ... [2020-11-29 23:34:52,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef7fcbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:34:52, skipping insertion in model container [2020-11-29 23:34:52,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:34:52" (3/3) ... [2020-11-29 23:34:52,741 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label12.c [2020-11-29 23:34:52,755 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:34:52,762 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:34:52,778 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:34:52,809 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:34:52,810 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:34:52,810 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:34:52,810 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:34:52,810 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:34:52,810 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:34:52,811 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:34:52,811 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:34:52,845 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-11-29 23:34:52,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-11-29 23:34:52,872 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:34:52,874 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:34:52,874 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:34:52,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:52,882 INFO L82 PathProgramCache]: Analyzing trace with hash -56899633, now seen corresponding path program 1 times [2020-11-29 23:34:52,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:52,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993282962] [2020-11-29 23:34:52,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:53,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:34:53,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993282962] [2020-11-29 23:34:53,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:34:53,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:34:53,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947676563] [2020-11-29 23:34:53,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:34:53,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:34:53,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:34:53,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:34:53,595 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-11-29 23:34:55,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:34:55,219 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-11-29 23:34:55,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:34:55,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-11-29 23:34:55,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:34:55,249 INFO L225 Difference]: With dead ends: 529 [2020-11-29 23:34:55,249 INFO L226 Difference]: Without dead ends: 266 [2020-11-29 23:34:55,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:34:55,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-29 23:34:55,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-29 23:34:55,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-29 23:34:55,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2020-11-29 23:34:55,337 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 120 [2020-11-29 23:34:55,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:34:55,338 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2020-11-29 23:34:55,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:34:55,338 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2020-11-29 23:34:55,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-11-29 23:34:55,342 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:34:55,343 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:34:55,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:34:55,343 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:34:55,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:55,344 INFO L82 PathProgramCache]: Analyzing trace with hash 966273764, now seen corresponding path program 1 times [2020-11-29 23:34:55,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:55,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338277790] [2020-11-29 23:34:55,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:55,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:34:55,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338277790] [2020-11-29 23:34:55,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:34:55,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:34:55,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214026302] [2020-11-29 23:34:55,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:34:55,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:34:55,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:34:55,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:34:55,465 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 3 states. [2020-11-29 23:34:56,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:34:56,317 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2020-11-29 23:34:56,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:34:56,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-11-29 23:34:56,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:34:56,323 INFO L225 Difference]: With dead ends: 792 [2020-11-29 23:34:56,323 INFO L226 Difference]: Without dead ends: 528 [2020-11-29 23:34:56,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:34:56,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-11-29 23:34:56,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-11-29 23:34:56,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-29 23:34:56,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 709 transitions. [2020-11-29 23:34:56,381 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 709 transitions. Word has length 126 [2020-11-29 23:34:56,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:34:56,382 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 709 transitions. [2020-11-29 23:34:56,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:34:56,382 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 709 transitions. [2020-11-29 23:34:56,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-11-29 23:34:56,389 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:34:56,390 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:34:56,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:34:56,399 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:34:56,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:56,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1608934884, now seen corresponding path program 1 times [2020-11-29 23:34:56,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:56,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952803979] [2020-11-29 23:34:56,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:56,927 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 23:34:56,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952803979] [2020-11-29 23:34:56,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:34:56,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:34:56,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750641648] [2020-11-29 23:34:56,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:34:56,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:34:56,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:34:56,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:34:56,931 INFO L87 Difference]: Start difference. First operand 528 states and 709 transitions. Second operand 4 states. [2020-11-29 23:34:58,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:34:58,220 INFO L93 Difference]: Finished difference Result 1411 states and 1882 transitions. [2020-11-29 23:34:58,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:34:58,222 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-11-29 23:34:58,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:34:58,233 INFO L225 Difference]: With dead ends: 1411 [2020-11-29 23:34:58,233 INFO L226 Difference]: Without dead ends: 790 [2020-11-29 23:34:58,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:34:58,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2020-11-29 23:34:58,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2020-11-29 23:34:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-11-29 23:34:58,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 918 transitions. [2020-11-29 23:34:58,303 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 918 transitions. Word has length 127 [2020-11-29 23:34:58,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:34:58,304 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 918 transitions. [2020-11-29 23:34:58,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:34:58,304 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 918 transitions. [2020-11-29 23:34:58,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-11-29 23:34:58,308 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:34:58,308 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:34:58,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 23:34:58,309 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:34:58,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:58,310 INFO L82 PathProgramCache]: Analyzing trace with hash -774791175, now seen corresponding path program 1 times [2020-11-29 23:34:58,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:58,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689301943] [2020-11-29 23:34:58,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:58,498 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:34:58,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689301943] [2020-11-29 23:34:58,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592810382] [2020-11-29 23:34:58,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:34:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:58,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:34:58,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:34:58,955 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 23:34:58,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:34:58,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 23:34:58,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712283070] [2020-11-29 23:34:58,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:34:58,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:34:58,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:34:58,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:34:58,961 INFO L87 Difference]: Start difference. First operand 790 states and 918 transitions. Second operand 3 states. [2020-11-29 23:34:59,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:34:59,787 INFO L93 Difference]: Finished difference Result 2102 states and 2481 transitions. [2020-11-29 23:34:59,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:34:59,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-11-29 23:34:59,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:34:59,798 INFO L225 Difference]: With dead ends: 2102 [2020-11-29 23:34:59,799 INFO L226 Difference]: Without dead ends: 1314 [2020-11-29 23:34:59,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 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 23:34:59,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-11-29 23:34:59,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2020-11-29 23:34:59,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-11-29 23:34:59,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1506 transitions. [2020-11-29 23:34:59,871 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1506 transitions. Word has length 132 [2020-11-29 23:34:59,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:34:59,871 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1506 transitions. [2020-11-29 23:34:59,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:34:59,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1506 transitions. [2020-11-29 23:34:59,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-11-29 23:34:59,876 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:34:59,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:00,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:00,093 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:00,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:00,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1052582816, now seen corresponding path program 1 times [2020-11-29 23:35:00,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:00,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615623930] [2020-11-29 23:35:00,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:00,270 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 23:35:00,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615623930] [2020-11-29 23:35:00,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:00,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:35:00,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028487685] [2020-11-29 23:35:00,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:35:00,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:00,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:35:00,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:35:00,274 INFO L87 Difference]: Start difference. First operand 1314 states and 1506 transitions. Second operand 4 states. [2020-11-29 23:35:01,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:01,480 INFO L93 Difference]: Finished difference Result 3150 states and 3649 transitions. [2020-11-29 23:35:01,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:35:01,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 135 [2020-11-29 23:35:01,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:01,492 INFO L225 Difference]: With dead ends: 3150 [2020-11-29 23:35:01,492 INFO L226 Difference]: Without dead ends: 1969 [2020-11-29 23:35:01,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:35:01,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-11-29 23:35:01,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1707. [2020-11-29 23:35:01,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2020-11-29 23:35:01,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1961 transitions. [2020-11-29 23:35:01,561 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1961 transitions. Word has length 135 [2020-11-29 23:35:01,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:01,561 INFO L481 AbstractCegarLoop]: Abstraction has 1707 states and 1961 transitions. [2020-11-29 23:35:01,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:35:01,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1961 transitions. [2020-11-29 23:35:01,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-11-29 23:35:01,566 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:01,566 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:01,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 23:35:01,567 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:01,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:01,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1628171452, now seen corresponding path program 1 times [2020-11-29 23:35:01,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:01,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232679061] [2020-11-29 23:35:01,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:01,655 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 23:35:01,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232679061] [2020-11-29 23:35:01,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:01,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:35:01,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21116983] [2020-11-29 23:35:01,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:01,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:01,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:01,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:01,658 INFO L87 Difference]: Start difference. First operand 1707 states and 1961 transitions. Second operand 3 states. [2020-11-29 23:35:02,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:02,461 INFO L93 Difference]: Finished difference Result 4067 states and 4661 transitions. [2020-11-29 23:35:02,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:02,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-11-29 23:35:02,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:02,479 INFO L225 Difference]: With dead ends: 4067 [2020-11-29 23:35:02,480 INFO L226 Difference]: Without dead ends: 2362 [2020-11-29 23:35:02,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:02,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-11-29 23:35:02,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 1969. [2020-11-29 23:35:02,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-11-29 23:35:02,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2259 transitions. [2020-11-29 23:35:02,558 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2259 transitions. Word has length 144 [2020-11-29 23:35:02,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:02,559 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2259 transitions. [2020-11-29 23:35:02,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:02,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2259 transitions. [2020-11-29 23:35:02,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-11-29 23:35:02,565 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:02,567 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:02,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 23:35:02,570 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:02,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:02,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1801070093, now seen corresponding path program 1 times [2020-11-29 23:35:02,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:02,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292999409] [2020-11-29 23:35:02,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:02,683 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 23:35:02,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292999409] [2020-11-29 23:35:02,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390362111] [2020-11-29 23:35:02,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:02,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:02,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:02,937 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-11-29 23:35:02,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:35:02,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 23:35:02,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090096296] [2020-11-29 23:35:02,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:02,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:02,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:02,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:35:02,940 INFO L87 Difference]: Start difference. First operand 1969 states and 2259 transitions. Second operand 3 states. [2020-11-29 23:35:03,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:03,680 INFO L93 Difference]: Finished difference Result 4460 states and 5120 transitions. [2020-11-29 23:35:03,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:03,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-11-29 23:35:03,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:03,697 INFO L225 Difference]: With dead ends: 4460 [2020-11-29 23:35:03,697 INFO L226 Difference]: Without dead ends: 2362 [2020-11-29 23:35:03,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 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 23:35:03,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-11-29 23:35:03,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 1969. [2020-11-29 23:35:03,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-11-29 23:35:03,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2244 transitions. [2020-11-29 23:35:03,772 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2244 transitions. Word has length 150 [2020-11-29 23:35:03,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:03,774 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2244 transitions. [2020-11-29 23:35:03,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:03,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2244 transitions. [2020-11-29 23:35:03,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-29 23:35:03,781 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:03,782 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:03,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:03,997 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:03,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:03,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1318547951, now seen corresponding path program 1 times [2020-11-29 23:35:03,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:03,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325755535] [2020-11-29 23:35:03,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:04,138 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 23:35:04,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325755535] [2020-11-29 23:35:04,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511167018] [2020-11-29 23:35:04,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:04,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:04,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:04,339 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 23:35:04,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:35:04,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 23:35:04,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070517016] [2020-11-29 23:35:04,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:04,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:04,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:04,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:35:04,346 INFO L87 Difference]: Start difference. First operand 1969 states and 2244 transitions. Second operand 3 states. [2020-11-29 23:35:05,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:05,061 INFO L93 Difference]: Finished difference Result 4065 states and 4650 transitions. [2020-11-29 23:35:05,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:05,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-11-29 23:35:05,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:05,063 INFO L225 Difference]: With dead ends: 4065 [2020-11-29 23:35:05,063 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:35:05,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 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 23:35:05,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:35:05,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:35:05,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:35:05,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:35:05,070 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 169 [2020-11-29 23:35:05,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:05,070 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:35:05,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:05,071 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:35:05,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:35:05,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:05,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 23:35:05,570 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2020-11-29 23:35:05,909 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2020-11-29 23:35:05,914 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-29 23:35:05,914 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-29 23:35:05,914 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-29 23:35:05,914 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-29 23:35:05,915 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-29 23:35:05,915 INFO L274 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-11-29 23:35:05,915 INFO L274 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-11-29 23:35:05,915 INFO L274 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-11-29 23:35:05,915 INFO L274 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,915 INFO L274 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,915 INFO L274 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,915 INFO L274 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,915 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-11-29 23:35:05,915 INFO L274 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,916 INFO L274 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,916 INFO L274 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-11-29 23:35:05,916 INFO L274 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-11-29 23:35:05,916 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-29 23:35:05,916 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-29 23:35:05,916 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-29 23:35:05,916 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-29 23:35:05,916 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-29 23:35:05,921 INFO L274 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-11-29 23:35:05,922 INFO L274 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-11-29 23:35:05,922 INFO L274 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-11-29 23:35:05,922 INFO L274 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-11-29 23:35:05,922 INFO L274 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-11-29 23:35:05,923 INFO L274 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,923 INFO L274 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,923 INFO L274 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,923 INFO L274 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,923 INFO L274 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,923 INFO L274 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-11-29 23:35:05,924 INFO L274 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,924 INFO L274 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-11-29 23:35:05,924 INFO L274 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-11-29 23:35:05,924 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-29 23:35:05,925 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-29 23:35:05,926 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-29 23:35:05,926 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-29 23:35:05,926 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-29 23:35:05,926 INFO L274 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2020-11-29 23:35:05,926 INFO L274 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-11-29 23:35:05,926 INFO L274 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-11-29 23:35:05,927 INFO L274 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-11-29 23:35:05,927 INFO L274 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-11-29 23:35:05,927 INFO L274 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-11-29 23:35:05,927 INFO L274 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-11-29 23:35:05,927 INFO L274 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,927 INFO L274 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,928 INFO L274 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,928 INFO L274 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,928 INFO L274 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,928 INFO L274 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,928 INFO L274 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-11-29 23:35:05,928 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-29 23:35:05,930 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-29 23:35:05,930 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-29 23:35:05,931 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-29 23:35:05,931 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-29 23:35:05,931 INFO L274 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-11-29 23:35:05,931 INFO L274 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-11-29 23:35:05,931 INFO L274 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-11-29 23:35:05,931 INFO L274 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-11-29 23:35:05,932 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 23:35:05,932 INFO L274 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-11-29 23:35:05,932 INFO L274 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-11-29 23:35:05,932 INFO L274 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,932 INFO L274 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,932 INFO L274 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,933 INFO L274 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,933 INFO L274 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,933 INFO L274 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,933 INFO L274 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-11-29 23:35:05,933 INFO L274 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-11-29 23:35:05,933 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-29 23:35:05,934 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-29 23:35:05,934 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-29 23:35:05,934 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-29 23:35:05,934 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-29 23:35:05,934 INFO L274 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2020-11-29 23:35:05,934 INFO L274 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-11-29 23:35:05,934 INFO L274 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-11-29 23:35:05,936 INFO L274 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,936 INFO L274 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,936 INFO L274 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,937 INFO L274 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,937 INFO L274 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,937 INFO L274 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,937 INFO L274 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-11-29 23:35:05,937 INFO L274 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-11-29 23:35:05,937 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-29 23:35:05,938 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-29 23:35:05,938 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-29 23:35:05,938 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-29 23:35:05,938 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-29 23:35:05,938 INFO L274 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2020-11-29 23:35:05,938 INFO L274 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-11-29 23:35:05,938 INFO L274 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-11-29 23:35:05,939 INFO L274 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-11-29 23:35:05,939 INFO L274 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-11-29 23:35:05,939 INFO L274 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-11-29 23:35:05,939 INFO L274 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-11-29 23:35:05,939 INFO L274 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-11-29 23:35:05,939 INFO L274 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,939 INFO L274 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,940 INFO L274 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,940 INFO L274 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,940 INFO L274 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,940 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 23:35:05,940 INFO L274 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-11-29 23:35:05,940 INFO L274 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-11-29 23:35:05,941 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-29 23:35:05,941 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-29 23:35:05,941 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-29 23:35:05,941 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-29 23:35:05,942 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-29 23:35:05,942 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-29 23:35:05,942 INFO L274 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-11-29 23:35:05,947 INFO L270 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 4)) (.cse0 (= ~a21~0 1)) (.cse2 (= ~a12~0 8)) (.cse3 (= ~a20~0 1)) (.cse6 (<= ~a8~0 13)) (.cse5 (<= ~a17~0 0)) (.cse7 (not (= ~a7~0 1))) (.cse8 (<= 15 ~a8~0)) (.cse4 (= ~a17~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse3) (and .cse1 .cse6) (and .cse0 .cse2 .cse3 .cse7 .cse4) (and (<= ~a16~0 5) .cse5) (and .cse3 .cse6) (and .cse5 .cse8) (and .cse7 .cse8 .cse4))) [2020-11-29 23:35:05,948 INFO L274 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,948 INFO L274 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,948 INFO L274 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,948 INFO L274 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,949 INFO L274 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,949 INFO L274 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-11-29 23:35:05,949 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-29 23:35:05,949 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-29 23:35:05,949 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-29 23:35:05,949 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-29 23:35:05,949 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-29 23:35:05,950 INFO L274 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-11-29 23:35:05,950 INFO L274 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-11-29 23:35:05,950 INFO L274 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-11-29 23:35:05,950 INFO L274 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-11-29 23:35:05,950 INFO L274 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-11-29 23:35:05,950 INFO L274 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-11-29 23:35:05,951 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 23:35:05,951 INFO L274 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-11-29 23:35:05,951 INFO L277 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-11-29 23:35:05,951 INFO L274 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,951 INFO L274 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,951 INFO L274 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,951 INFO L274 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,952 INFO L274 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,952 INFO L274 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-11-29 23:35:05,953 INFO L274 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-11-29 23:35:05,953 INFO L274 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-11-29 23:35:05,953 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-29 23:35:05,953 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-29 23:35:05,954 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-29 23:35:05,954 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-29 23:35:05,954 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-29 23:35:05,954 INFO L274 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-11-29 23:35:05,955 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 23:35:05,955 INFO L274 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,955 INFO L274 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,955 INFO L274 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,955 INFO L274 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,955 INFO L274 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-11-29 23:35:05,956 INFO L274 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,956 INFO L274 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-11-29 23:35:05,956 INFO L274 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-11-29 23:35:05,956 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-29 23:35:05,956 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-29 23:35:05,956 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-29 23:35:05,956 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-29 23:35:05,957 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-29 23:35:05,957 INFO L274 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-11-29 23:35:05,957 INFO L274 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-11-29 23:35:05,957 INFO L274 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-11-29 23:35:05,957 INFO L274 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-11-29 23:35:05,957 INFO L274 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-11-29 23:35:05,958 INFO L274 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-11-29 23:35:05,958 INFO L274 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,958 INFO L270 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 4)) (.cse0 (= ~a21~0 1)) (.cse2 (= ~a12~0 8)) (.cse3 (= ~a20~0 1)) (.cse6 (<= ~a8~0 13)) (.cse5 (<= ~a17~0 0)) (.cse7 (not (= ~a7~0 1))) (.cse8 (<= 15 ~a8~0)) (.cse4 (= ~a17~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse3) (and .cse1 .cse6) (and .cse0 .cse2 .cse3 .cse7 .cse4) (and (<= ~a16~0 5) .cse5) (and .cse3 .cse6) (and .cse5 .cse8) (and .cse7 .cse8 .cse4))) [2020-11-29 23:35:05,958 INFO L274 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,958 INFO L274 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,959 INFO L274 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,959 INFO L274 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,959 INFO L274 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-11-29 23:35:05,959 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 23:35:05,959 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 23:35:05,959 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-29 23:35:05,960 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-29 23:35:05,960 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-29 23:35:05,960 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-29 23:35:05,960 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-29 23:35:05,960 INFO L274 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-11-29 23:35:05,960 INFO L274 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-11-29 23:35:05,960 INFO L274 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,961 INFO L274 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,961 INFO L274 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,961 INFO L274 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,961 INFO L274 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 23:35:05,961 INFO L274 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-11-29 23:35:05,961 INFO L274 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-11-29 23:35:05,962 INFO L274 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-11-29 23:35:05,962 INFO L274 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-11-29 23:35:06,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:35:06 BoogieIcfgContainer [2020-11-29 23:35:06,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:35:06,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:35:06,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:35:06,004 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:35:06,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:34:52" (3/4) ... [2020-11-29 23:35:06,009 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:35:06,044 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 23:35:06,046 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 23:35:06,047 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:35:06,049 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:35:06,256 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e8206e55-8437-4cf0-a9f3-269c08c6839f/bin/uautomizer/witness.graphml [2020-11-29 23:35:06,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:35:06,258 INFO L168 Benchmark]: Toolchain (without parser) took 16485.61 ms. Allocated memory was 90.2 MB in the beginning and 274.7 MB in the end (delta: 184.5 MB). Free memory was 58.9 MB in the beginning and 127.9 MB in the end (delta: -69.1 MB). Peak memory consumption was 115.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:06,258 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 90.2 MB. Free memory was 49.9 MB in the beginning and 49.9 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:35:06,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.27 ms. Allocated memory is still 90.2 MB. Free memory was 58.6 MB in the beginning and 51.4 MB in the end (delta: 7.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:06,262 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.40 ms. Allocated memory is still 90.2 MB. Free memory was 51.4 MB in the beginning and 46.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:06,262 INFO L168 Benchmark]: Boogie Preprocessor took 136.61 ms. Allocated memory is still 90.2 MB. Free memory was 46.0 MB in the beginning and 41.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:06,263 INFO L168 Benchmark]: RCFGBuilder took 1893.14 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 41.4 MB in the beginning and 36.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:06,263 INFO L168 Benchmark]: TraceAbstraction took 13272.69 ms. Allocated memory was 109.1 MB in the beginning and 274.7 MB in the end (delta: 165.7 MB). Free memory was 81.8 MB in the beginning and 143.7 MB in the end (delta: -61.9 MB). Peak memory consumption was 102.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:06,264 INFO L168 Benchmark]: Witness Printer took 252.73 ms. Allocated memory is still 274.7 MB. Free memory was 143.7 MB in the beginning and 127.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:06,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 90.2 MB. Free memory was 49.9 MB in the beginning and 49.9 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 777.27 ms. Allocated memory is still 90.2 MB. Free memory was 58.6 MB in the beginning and 51.4 MB in the end (delta: 7.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 128.40 ms. Allocated memory is still 90.2 MB. Free memory was 51.4 MB in the beginning and 46.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 136.61 ms. Allocated memory is still 90.2 MB. Free memory was 46.0 MB in the beginning and 41.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1893.14 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 41.4 MB in the beginning and 36.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13272.69 ms. Allocated memory was 109.1 MB in the beginning and 274.7 MB in the end (delta: 165.7 MB). Free memory was 81.8 MB in the beginning and 143.7 MB in the end (delta: -61.9 MB). Peak memory consumption was 102.5 MB. Max. memory is 16.1 GB. * Witness Printer took 252.73 ms. Allocated memory is still 274.7 MB. Free memory was 143.7 MB in the beginning and 127.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 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: ((((((((((a21 == 1 && a16 <= 4) && a12 == 8) && a20 == 1) && a17 == 1) || (a17 <= 0 && a20 == 1)) || (a16 <= 4 && a8 <= 13)) || ((((a21 == 1 && a12 == 8) && a20 == 1) && !(a7 == 1)) && a17 == 1)) || (a16 <= 5 && a17 <= 0)) || (a20 == 1 && a8 <= 13)) || (a17 <= 0 && 15 <= a8)) || ((!(a7 == 1) && 15 <= a8) && a17 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((((((((a21 == 1 && a16 <= 4) && a12 == 8) && a20 == 1) && a17 == 1) || (a17 <= 0 && a20 == 1)) || (a16 <= 4 && a8 <= 13)) || ((((a21 == 1 && a12 == 8) && a20 == 1) && !(a7 == 1)) && a17 == 1)) || (a16 <= 5 && a17 <= 0)) || (a20 == 1 && a8 <= 13)) || (a17 <= 0 && 15 <= a8)) || ((!(a7 == 1) && 15 <= a8) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.4s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 735 SDtfs, 777 SDslu, 56 SDs, 0 SdLazy, 3127 SolverSat, 469 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 470 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 16 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, 8 MinimizatonAttempts, 1048 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 45 NumberOfFragments, 161 HoareAnnotationTreeSize, 3 FomulaSimplifications, 794 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 84 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1554 NumberOfCodeBlocks, 1554 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1543 ConstructedInterpolants, 0 QuantifiedInterpolants, 676770 SizeOfPredicates, 3 NumberOfNonLiveVariables, 943 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 315/324 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...