./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label58.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_457f4ca7-051c-44b1-a60b-2be9cad9913f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label58.c -s /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/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 a3d221c588c349503d67f0a66f4914e82b09d7a1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:59:14,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:59:14,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:59:15,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:59:15,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:59:15,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:59:15,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:59:15,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:59:15,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:59:15,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:59:15,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:59:15,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:59:15,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:59:15,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:59:15,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:59:15,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:59:15,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:59:15,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:59:15,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:59:15,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:59:15,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:59:15,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:59:15,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:59:15,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:59:15,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:59:15,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:59:15,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:59:15,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:59:15,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:59:15,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:59:15,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:59:15,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:59:15,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:59:15,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:59:15,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:59:15,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:59:15,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:59:15,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:59:15,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:59:15,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:59:15,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:59:15,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:59:15,124 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:59:15,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:59:15,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:59:15,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:59:15,126 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:59:15,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:59:15,126 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:59:15,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:59:15,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:59:15,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:59:15,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:59:15,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:59:15,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:59:15,128 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:59:15,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:59:15,129 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:59:15,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:59:15,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:59:15,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:59:15,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:59:15,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:59:15,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:59:15,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:59:15,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:59:15,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:59:15,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:59:15,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:59:15,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:59:15,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:59:15,131 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_457f4ca7-051c-44b1-a60b-2be9cad9913f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3d221c588c349503d67f0a66f4914e82b09d7a1 [2020-11-28 02:59:15,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:59:15,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:59:15,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:59:15,453 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:59:15,454 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:59:15,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label58.c [2020-11-28 02:59:15,528 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/bin/uautomizer/data/e710bd312/ac6925a871b14cf98cdadeb566ea74d9/FLAG65175fca4 [2020-11-28 02:59:16,250 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:59:16,250 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/sv-benchmarks/c/eca-rers2012/Problem01_label58.c [2020-11-28 02:59:16,261 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/bin/uautomizer/data/e710bd312/ac6925a871b14cf98cdadeb566ea74d9/FLAG65175fca4 [2020-11-28 02:59:16,285 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/bin/uautomizer/data/e710bd312/ac6925a871b14cf98cdadeb566ea74d9 [2020-11-28 02:59:16,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:59:16,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:59:16,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:16,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:59:16,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:59:16,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:16,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@209b15cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16, skipping insertion in model container [2020-11-28 02:59:16,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:16,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:59:16,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:59:16,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:16,820 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:59:16,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:16,957 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:59:16,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16 WrapperNode [2020-11-28 02:59:16,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:16,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:59:16,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:59:16,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:59:16,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:16,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:59:17,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:59:17,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:59:17,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:59:17,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:59:17,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:59:17,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:59:17,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:59:17,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/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 [2020-11-28 02:59:17,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:59:17,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:59:17,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:59:17,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:59:18,666 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:59:18,667 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 02:59:18,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:18 BoogieIcfgContainer [2020-11-28 02:59:18,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:59:18,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:59:18,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:59:18,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:59:18,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:59:16" (1/3) ... [2020-11-28 02:59:18,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14281808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:18, skipping insertion in model container [2020-11-28 02:59:18,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (2/3) ... [2020-11-28 02:59:18,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14281808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:18, skipping insertion in model container [2020-11-28 02:59:18,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:18" (3/3) ... [2020-11-28 02:59:18,676 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label58.c [2020-11-28 02:59:18,686 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:59:18,690 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 02:59:18,701 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 02:59:18,724 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:59:18,724 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:59:18,724 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:59:18,725 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:59:18,725 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:59:18,725 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:59:18,725 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:59:18,725 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:59:18,742 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-11-28 02:59:18,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-11-28 02:59:18,752 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:18,752 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] [2020-11-28 02:59:18,753 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:18,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:18,758 INFO L82 PathProgramCache]: Analyzing trace with hash -2041810178, now seen corresponding path program 1 times [2020-11-28 02:59:18,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:18,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124541193] [2020-11-28 02:59:18,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:19,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:19,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124541193] [2020-11-28 02:59:19,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:19,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:19,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128784196] [2020-11-28 02:59:19,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:19,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:19,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:19,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:19,248 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-11-28 02:59:20,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:20,437 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-11-28 02:59:20,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:20,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-11-28 02:59:20,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:20,456 INFO L225 Difference]: With dead ends: 529 [2020-11-28 02:59:20,456 INFO L226 Difference]: Without dead ends: 266 [2020-11-28 02:59:20,460 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 [2020-11-28 02:59:20,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-28 02:59:20,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-28 02:59:20,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-28 02:59:20,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions. [2020-11-28 02:59:20,515 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 99 [2020-11-28 02:59:20,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:20,516 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions. [2020-11-28 02:59:20,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:20,516 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions. [2020-11-28 02:59:20,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-28 02:59:20,521 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:20,522 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:20,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:59:20,522 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:20,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:20,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1901547932, now seen corresponding path program 1 times [2020-11-28 02:59:20,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:20,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361922976] [2020-11-28 02:59:20,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:20,596 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:20,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361922976] [2020-11-28 02:59:20,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:20,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:20,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553525092] [2020-11-28 02:59:20,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:20,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:20,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:20,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:20,600 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand 3 states. [2020-11-28 02:59:21,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:21,266 INFO L93 Difference]: Finished difference Result 794 states and 1172 transitions. [2020-11-28 02:59:21,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:21,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-11-28 02:59:21,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:21,271 INFO L225 Difference]: With dead ends: 794 [2020-11-28 02:59:21,271 INFO L226 Difference]: Without dead ends: 530 [2020-11-28 02:59:21,274 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 [2020-11-28 02:59:21,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-11-28 02:59:21,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 528. [2020-11-28 02:59:21,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-28 02:59:21,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions. [2020-11-28 02:59:21,322 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 104 [2020-11-28 02:59:21,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:21,322 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions. [2020-11-28 02:59:21,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:21,323 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions. [2020-11-28 02:59:21,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-11-28 02:59:21,332 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:21,333 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:21,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:59:21,333 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:21,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:21,337 INFO L82 PathProgramCache]: Analyzing trace with hash 131339897, now seen corresponding path program 1 times [2020-11-28 02:59:21,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:21,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167298814] [2020-11-28 02:59:21,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:21,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167298814] [2020-11-28 02:59:21,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:21,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:59:21,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502716974] [2020-11-28 02:59:21,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:59:21,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:21,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:59:21,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:59:21,443 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand 4 states. [2020-11-28 02:59:22,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:22,490 INFO L93 Difference]: Finished difference Result 1840 states and 2594 transitions. [2020-11-28 02:59:22,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:59:22,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2020-11-28 02:59:22,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:22,499 INFO L225 Difference]: With dead ends: 1840 [2020-11-28 02:59:22,499 INFO L226 Difference]: Without dead ends: 1314 [2020-11-28 02:59:22,500 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 [2020-11-28 02:59:22,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-11-28 02:59:22,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2020-11-28 02:59:22,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-11-28 02:59:22,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1705 transitions. [2020-11-28 02:59:22,568 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1705 transitions. Word has length 111 [2020-11-28 02:59:22,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:22,568 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1705 transitions. [2020-11-28 02:59:22,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:59:22,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1705 transitions. [2020-11-28 02:59:22,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-11-28 02:59:22,578 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:22,582 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-28 02:59:22,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:59:22,583 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:22,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:22,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1936807773, now seen corresponding path program 1 times [2020-11-28 02:59:22,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:22,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452948785] [2020-11-28 02:59:22,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:22,720 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:22,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452948785] [2020-11-28 02:59:22,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:22,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:22,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271610606] [2020-11-28 02:59:22,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:22,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:22,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:22,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:22,726 INFO L87 Difference]: Start difference. First operand 1314 states and 1705 transitions. Second operand 3 states. [2020-11-28 02:59:23,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:23,419 INFO L93 Difference]: Finished difference Result 3281 states and 4189 transitions. [2020-11-28 02:59:23,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:23,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-11-28 02:59:23,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:23,432 INFO L225 Difference]: With dead ends: 3281 [2020-11-28 02:59:23,433 INFO L226 Difference]: Without dead ends: 1969 [2020-11-28 02:59:23,435 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 [2020-11-28 02:59:23,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-11-28 02:59:23,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1707. [2020-11-28 02:59:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2020-11-28 02:59:23,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2140 transitions. [2020-11-28 02:59:23,492 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2140 transitions. Word has length 114 [2020-11-28 02:59:23,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:23,493 INFO L481 AbstractCegarLoop]: Abstraction has 1707 states and 2140 transitions. [2020-11-28 02:59:23,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:23,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2140 transitions. [2020-11-28 02:59:23,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-11-28 02:59:23,497 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:23,498 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:23,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:59:23,498 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:23,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:23,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1844233745, now seen corresponding path program 1 times [2020-11-28 02:59:23,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:23,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356652781] [2020-11-28 02:59:23,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:23,609 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 02:59:23,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356652781] [2020-11-28 02:59:23,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:23,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:23,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954765371] [2020-11-28 02:59:23,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:23,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:23,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:23,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:23,618 INFO L87 Difference]: Start difference. First operand 1707 states and 2140 transitions. Second operand 3 states. [2020-11-28 02:59:24,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:24,376 INFO L93 Difference]: Finished difference Result 4067 states and 5157 transitions. [2020-11-28 02:59:24,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:24,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-11-28 02:59:24,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:24,388 INFO L225 Difference]: With dead ends: 4067 [2020-11-28 02:59:24,388 INFO L226 Difference]: Without dead ends: 2231 [2020-11-28 02:59:24,391 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 [2020-11-28 02:59:24,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-11-28 02:59:24,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1969. [2020-11-28 02:59:24,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-11-28 02:59:24,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2277 transitions. [2020-11-28 02:59:24,439 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2277 transitions. Word has length 115 [2020-11-28 02:59:24,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:24,439 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2277 transitions. [2020-11-28 02:59:24,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:24,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2277 transitions. [2020-11-28 02:59:24,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-11-28 02:59:24,443 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:24,444 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:24,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:59:24,444 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:24,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:24,445 INFO L82 PathProgramCache]: Analyzing trace with hash -897252107, now seen corresponding path program 1 times [2020-11-28 02:59:24,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:24,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584600934] [2020-11-28 02:59:24,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:24,557 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 02:59:24,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584600934] [2020-11-28 02:59:24,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:24,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:59:24,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983489664] [2020-11-28 02:59:24,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:59:24,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:24,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:59:24,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:59:24,561 INFO L87 Difference]: Start difference. First operand 1969 states and 2277 transitions. Second operand 4 states. [2020-11-28 02:59:25,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:25,482 INFO L93 Difference]: Finished difference Result 4067 states and 4698 transitions. [2020-11-28 02:59:25,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:59:25,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2020-11-28 02:59:25,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:25,494 INFO L225 Difference]: With dead ends: 4067 [2020-11-28 02:59:25,494 INFO L226 Difference]: Without dead ends: 2100 [2020-11-28 02:59:25,497 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 [2020-11-28 02:59:25,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2020-11-28 02:59:25,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2100. [2020-11-28 02:59:25,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-11-28 02:59:25,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2353 transitions. [2020-11-28 02:59:25,545 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2353 transitions. Word has length 119 [2020-11-28 02:59:25,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:25,549 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2353 transitions. [2020-11-28 02:59:25,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:59:25,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2353 transitions. [2020-11-28 02:59:25,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-28 02:59:25,554 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:25,554 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:25,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 02:59:25,554 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:25,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:25,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1843950389, now seen corresponding path program 1 times [2020-11-28 02:59:25,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:25,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495992769] [2020-11-28 02:59:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:25,701 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-28 02:59:25,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495992769] [2020-11-28 02:59:25,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:25,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:59:25,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746158069] [2020-11-28 02:59:25,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:59:25,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:25,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:59:25,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:59:25,715 INFO L87 Difference]: Start difference. First operand 2100 states and 2353 transitions. Second operand 4 states. [2020-11-28 02:59:26,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:26,637 INFO L93 Difference]: Finished difference Result 4198 states and 4704 transitions. [2020-11-28 02:59:26,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:59:26,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-11-28 02:59:26,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:26,648 INFO L225 Difference]: With dead ends: 4198 [2020-11-28 02:59:26,648 INFO L226 Difference]: Without dead ends: 2100 [2020-11-28 02:59:26,652 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 [2020-11-28 02:59:26,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2020-11-28 02:59:26,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2100. [2020-11-28 02:59:26,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-11-28 02:59:26,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2332 transitions. [2020-11-28 02:59:26,700 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2332 transitions. Word has length 148 [2020-11-28 02:59:26,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:26,702 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2332 transitions. [2020-11-28 02:59:26,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:59:26,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2332 transitions. [2020-11-28 02:59:26,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-11-28 02:59:26,707 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:26,707 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:26,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 02:59:26,708 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:26,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:26,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1183827364, now seen corresponding path program 1 times [2020-11-28 02:59:26,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:26,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39092125] [2020-11-28 02:59:26,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:26,837 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-28 02:59:26,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39092125] [2020-11-28 02:59:26,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:26,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:59:26,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899143682] [2020-11-28 02:59:26,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:26,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:26,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:26,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:26,840 INFO L87 Difference]: Start difference. First operand 2100 states and 2332 transitions. Second operand 3 states. [2020-11-28 02:59:27,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:27,465 INFO L93 Difference]: Finished difference Result 4722 states and 5248 transitions. [2020-11-28 02:59:27,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:27,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-11-28 02:59:27,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:27,481 INFO L225 Difference]: With dead ends: 4722 [2020-11-28 02:59:27,481 INFO L226 Difference]: Without dead ends: 2624 [2020-11-28 02:59:27,484 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 [2020-11-28 02:59:27,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2020-11-28 02:59:27,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2231. [2020-11-28 02:59:27,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-11-28 02:59:27,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2479 transitions. [2020-11-28 02:59:27,541 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2479 transitions. Word has length 165 [2020-11-28 02:59:27,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:27,543 INFO L481 AbstractCegarLoop]: Abstraction has 2231 states and 2479 transitions. [2020-11-28 02:59:27,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:27,543 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2479 transitions. [2020-11-28 02:59:27,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-11-28 02:59:27,548 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:27,548 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:27,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 02:59:27,549 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:27,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:27,550 INFO L82 PathProgramCache]: Analyzing trace with hash 670790421, now seen corresponding path program 1 times [2020-11-28 02:59:27,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:27,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840582472] [2020-11-28 02:59:27,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:27,739 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-28 02:59:27,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840582472] [2020-11-28 02:59:27,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:27,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:59:27,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694415974] [2020-11-28 02:59:27,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:27,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:27,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:27,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:27,746 INFO L87 Difference]: Start difference. First operand 2231 states and 2479 transitions. Second operand 3 states. [2020-11-28 02:59:28,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:28,341 INFO L93 Difference]: Finished difference Result 4853 states and 5368 transitions. [2020-11-28 02:59:28,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:28,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-11-28 02:59:28,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:28,356 INFO L225 Difference]: With dead ends: 4853 [2020-11-28 02:59:28,356 INFO L226 Difference]: Without dead ends: 2624 [2020-11-28 02:59:28,359 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 [2020-11-28 02:59:28,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2020-11-28 02:59:28,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2493. [2020-11-28 02:59:28,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2493 states. [2020-11-28 02:59:28,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 2713 transitions. [2020-11-28 02:59:28,417 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 2713 transitions. Word has length 192 [2020-11-28 02:59:28,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:28,417 INFO L481 AbstractCegarLoop]: Abstraction has 2493 states and 2713 transitions. [2020-11-28 02:59:28,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:28,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 2713 transitions. [2020-11-28 02:59:28,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-11-28 02:59:28,423 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:28,423 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:28,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 02:59:28,424 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:28,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:28,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1772425708, now seen corresponding path program 1 times [2020-11-28 02:59:28,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:28,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705267441] [2020-11-28 02:59:28,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:28,702 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 131 proven. 38 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-28 02:59:28,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705267441] [2020-11-28 02:59:28,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439685560] [2020-11-28 02:59:28,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/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 [2020-11-28 02:59:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:28,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:59:28,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:59:29,222 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2020-11-28 02:59:29,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:59:29,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-11-28 02:59:29,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309100346] [2020-11-28 02:59:29,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:29,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:29,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:29,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-28 02:59:29,225 INFO L87 Difference]: Start difference. First operand 2493 states and 2713 transitions. Second operand 3 states. [2020-11-28 02:59:29,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:29,888 INFO L93 Difference]: Finished difference Result 5901 states and 6470 transitions. [2020-11-28 02:59:29,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:29,889 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-11-28 02:59:29,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:29,908 INFO L225 Difference]: With dead ends: 5901 [2020-11-28 02:59:29,908 INFO L226 Difference]: Without dead ends: 3410 [2020-11-28 02:59:29,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-28 02:59:29,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2020-11-28 02:59:29,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 1838. [2020-11-28 02:59:29,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-11-28 02:59:29,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2032 transitions. [2020-11-28 02:59:29,979 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2032 transitions. Word has length 205 [2020-11-28 02:59:29,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:29,979 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 2032 transitions. [2020-11-28 02:59:29,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:29,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2032 transitions. [2020-11-28 02:59:29,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-11-28 02:59:29,986 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:29,986 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 02:59:30,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-28 02:59:30,212 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:30,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:30,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1251007502, now seen corresponding path program 1 times [2020-11-28 02:59:30,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:30,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638454190] [2020-11-28 02:59:30,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:30,526 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 250 proven. 38 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2020-11-28 02:59:30,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638454190] [2020-11-28 02:59:30,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363980876] [2020-11-28 02:59:30,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/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 [2020-11-28 02:59:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:30,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:59:30,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:59:30,833 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2020-11-28 02:59:30,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:59:30,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-28 02:59:30,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170159773] [2020-11-28 02:59:30,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:30,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:30,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:30,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-28 02:59:30,837 INFO L87 Difference]: Start difference. First operand 1838 states and 2032 transitions. Second operand 3 states. [2020-11-28 02:59:31,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:31,440 INFO L93 Difference]: Finished difference Result 4198 states and 4684 transitions. [2020-11-28 02:59:31,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:31,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 260 [2020-11-28 02:59:31,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:31,452 INFO L225 Difference]: With dead ends: 4198 [2020-11-28 02:59:31,453 INFO L226 Difference]: Without dead ends: 2362 [2020-11-28 02:59:31,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-28 02:59:31,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-11-28 02:59:31,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2231. [2020-11-28 02:59:31,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-11-28 02:59:31,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2500 transitions. [2020-11-28 02:59:31,507 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2500 transitions. Word has length 260 [2020-11-28 02:59:31,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:31,508 INFO L481 AbstractCegarLoop]: Abstraction has 2231 states and 2500 transitions. [2020-11-28 02:59:31,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:31,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2500 transitions. [2020-11-28 02:59:31,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-11-28 02:59:31,516 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:31,516 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:31,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:59:31,732 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:31,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:31,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1429083210, now seen corresponding path program 1 times [2020-11-28 02:59:31,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:31,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654727115] [2020-11-28 02:59:31,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 236 proven. 142 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-11-28 02:59:32,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654727115] [2020-11-28 02:59:32,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741035143] [2020-11-28 02:59:32,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/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 [2020-11-28 02:59:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:32,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:59:32,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:59:32,559 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-11-28 02:59:32,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:59:32,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-11-28 02:59:32,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616599650] [2020-11-28 02:59:32,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:32,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:32,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:32,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:59:32,562 INFO L87 Difference]: Start difference. First operand 2231 states and 2500 transitions. Second operand 3 states. [2020-11-28 02:59:33,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:33,181 INFO L93 Difference]: Finished difference Result 4982 states and 5596 transitions. [2020-11-28 02:59:33,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:33,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2020-11-28 02:59:33,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:33,186 INFO L225 Difference]: With dead ends: 4982 [2020-11-28 02:59:33,187 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 02:59:33,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:59:33,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 02:59:33,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 02:59:33,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 02:59:33,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 02:59:33,193 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 269 [2020-11-28 02:59:33,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:33,193 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:59:33,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:33,193 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:59:33,193 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 02:59:33,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-28 02:59:33,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 02:59:33,590 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-28 02:59:33,591 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-28 02:59:33,591 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-28 02:59:33,591 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-28 02:59:33,591 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-28 02:59:33,591 INFO L274 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-11-28 02:59:33,591 INFO L274 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-11-28 02:59:33,591 INFO L274 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-11-28 02:59:33,591 INFO L274 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,591 INFO L274 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,591 INFO L274 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,591 INFO L274 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,591 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-11-28 02:59:33,592 INFO L274 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,592 INFO L274 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,592 INFO L274 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-11-28 02:59:33,592 INFO L274 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-11-28 02:59:33,592 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-28 02:59:33,592 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-28 02:59:33,592 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-28 02:59:33,592 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-28 02:59:33,592 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-28 02:59:33,592 INFO L274 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-11-28 02:59:33,592 INFO L274 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-11-28 02:59:33,592 INFO L274 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-11-28 02:59:33,592 INFO L274 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-11-28 02:59:33,593 INFO L274 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-11-28 02:59:33,593 INFO L274 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,593 INFO L274 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,593 INFO L274 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,593 INFO L274 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,593 INFO L274 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,593 INFO L274 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-11-28 02:59:33,593 INFO L274 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,593 INFO L274 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-11-28 02:59:33,593 INFO L274 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-11-28 02:59:33,593 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-28 02:59:33,593 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-28 02:59:33,593 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-28 02:59:33,594 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-28 02:59:33,594 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-28 02:59:33,594 INFO L274 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2020-11-28 02:59:33,594 INFO L274 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-11-28 02:59:33,594 INFO L274 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-11-28 02:59:33,594 INFO L274 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-11-28 02:59:33,594 INFO L274 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-11-28 02:59:33,594 INFO L274 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-11-28 02:59:33,594 INFO L274 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-11-28 02:59:33,594 INFO L274 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,594 INFO L274 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,594 INFO L274 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,594 INFO L274 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,595 INFO L274 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,595 INFO L274 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,595 INFO L274 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-11-28 02:59:33,595 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-28 02:59:33,595 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-28 02:59:33,595 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-28 02:59:33,595 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-28 02:59:33,595 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-28 02:59:33,595 INFO L274 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-11-28 02:59:33,595 INFO L274 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-11-28 02:59:33,595 INFO L274 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-11-28 02:59:33,595 INFO L274 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-11-28 02:59:33,596 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 02:59:33,596 INFO L274 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-11-28 02:59:33,596 INFO L274 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-11-28 02:59:33,596 INFO L274 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,596 INFO L274 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,596 INFO L274 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,596 INFO L274 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,596 INFO L274 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,596 INFO L274 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,596 INFO L274 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-11-28 02:59:33,596 INFO L274 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-11-28 02:59:33,596 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-28 02:59:33,596 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-28 02:59:33,597 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-28 02:59:33,597 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-28 02:59:33,597 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-28 02:59:33,597 INFO L274 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2020-11-28 02:59:33,597 INFO L274 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-11-28 02:59:33,597 INFO L274 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-11-28 02:59:33,597 INFO L274 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,597 INFO L274 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,597 INFO L274 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,597 INFO L274 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,597 INFO L274 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,597 INFO L274 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,597 INFO L274 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-11-28 02:59:33,598 INFO L274 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-11-28 02:59:33,598 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-28 02:59:33,598 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-28 02:59:33,598 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-28 02:59:33,598 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-28 02:59:33,598 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-28 02:59:33,598 INFO L274 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2020-11-28 02:59:33,598 INFO L274 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-11-28 02:59:33,598 INFO L274 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-11-28 02:59:33,598 INFO L274 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-11-28 02:59:33,598 INFO L274 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-11-28 02:59:33,598 INFO L274 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-11-28 02:59:33,598 INFO L274 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-11-28 02:59:33,598 INFO L274 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-11-28 02:59:33,599 INFO L274 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,599 INFO L274 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,599 INFO L274 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,599 INFO L274 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,599 INFO L274 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,599 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 02:59:33,599 INFO L274 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-11-28 02:59:33,599 INFO L274 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-11-28 02:59:33,599 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-28 02:59:33,599 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-28 02:59:33,599 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-28 02:59:33,599 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-28 02:59:33,599 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-28 02:59:33,599 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-28 02:59:33,600 INFO L274 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-11-28 02:59:33,600 INFO L270 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (= ~a16~0 6))) (or (and .cse0 (<= ~a8~0 13)) (<= ~a16~0 5) (and .cse0 (<= 15 ~a8~0)) (and (= ~a21~0 1) (= ~a20~0 1)))) [2020-11-28 02:59:33,600 INFO L274 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,600 INFO L274 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,600 INFO L274 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,600 INFO L274 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,600 INFO L274 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,600 INFO L274 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-11-28 02:59:33,601 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-28 02:59:33,601 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-28 02:59:33,601 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-28 02:59:33,601 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-28 02:59:33,601 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-28 02:59:33,601 INFO L274 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-11-28 02:59:33,601 INFO L274 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-11-28 02:59:33,601 INFO L274 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-11-28 02:59:33,601 INFO L274 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-11-28 02:59:33,601 INFO L274 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-11-28 02:59:33,601 INFO L274 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-11-28 02:59:33,601 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 02:59:33,601 INFO L274 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-11-28 02:59:33,602 INFO L277 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-11-28 02:59:33,602 INFO L274 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,602 INFO L274 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,602 INFO L274 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,602 INFO L274 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,602 INFO L274 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,602 INFO L274 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-11-28 02:59:33,602 INFO L274 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-11-28 02:59:33,602 INFO L274 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-11-28 02:59:33,602 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-28 02:59:33,602 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-28 02:59:33,602 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-28 02:59:33,602 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-28 02:59:33,602 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-28 02:59:33,603 INFO L274 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-11-28 02:59:33,603 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 02:59:33,603 INFO L274 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,603 INFO L274 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,603 INFO L274 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,603 INFO L274 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,603 INFO L274 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-11-28 02:59:33,603 INFO L274 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,603 INFO L274 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-11-28 02:59:33,603 INFO L274 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-11-28 02:59:33,603 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-28 02:59:33,603 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-28 02:59:33,603 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-28 02:59:33,604 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-28 02:59:33,604 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-28 02:59:33,604 INFO L274 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-11-28 02:59:33,604 INFO L274 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-11-28 02:59:33,604 INFO L274 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-11-28 02:59:33,607 INFO L274 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-11-28 02:59:33,607 INFO L274 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-11-28 02:59:33,607 INFO L274 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-11-28 02:59:33,607 INFO L274 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,608 INFO L270 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (= ~a16~0 6))) (or (and .cse0 (<= ~a8~0 13)) (<= ~a16~0 5) (and .cse0 (<= 15 ~a8~0)) (and (= ~a21~0 1) (= ~a20~0 1)))) [2020-11-28 02:59:33,608 INFO L274 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,608 INFO L274 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,608 INFO L274 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,608 INFO L274 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,608 INFO L274 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-11-28 02:59:33,609 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 02:59:33,609 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 02:59:33,609 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-28 02:59:33,609 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-28 02:59:33,609 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-28 02:59:33,609 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-28 02:59:33,609 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-28 02:59:33,609 INFO L274 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-11-28 02:59:33,610 INFO L274 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-11-28 02:59:33,610 INFO L274 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,611 INFO L274 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,611 INFO L274 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,611 INFO L274 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,611 INFO L274 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 02:59:33,613 INFO L274 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-11-28 02:59:33,613 INFO L274 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-11-28 02:59:33,613 INFO L274 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-11-28 02:59:33,613 INFO L274 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-11-28 02:59:33,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:59:33 BoogieIcfgContainer [2020-11-28 02:59:33,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:59:33,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:59:33,658 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:59:33,658 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:59:33,658 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:18" (3/4) ... [2020-11-28 02:59:33,661 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 02:59:33,694 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 02:59:33,697 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 02:59:33,699 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:59:33,700 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:59:33,896 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_457f4ca7-051c-44b1-a60b-2be9cad9913f/bin/uautomizer/witness.graphml [2020-11-28 02:59:33,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:59:33,898 INFO L168 Benchmark]: Toolchain (without parser) took 17603.08 ms. Allocated memory was 136.3 MB in the beginning and 411.0 MB in the end (delta: 274.7 MB). Free memory was 107.2 MB in the beginning and 373.4 MB in the end (delta: -266.2 MB). Peak memory consumption was 246.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:33,899 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 48.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:33,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.82 ms. Allocated memory is still 136.3 MB. Free memory was 106.8 MB in the beginning and 95.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:33,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.61 ms. Allocated memory is still 136.3 MB. Free memory was 95.8 MB in the beginning and 90.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:33,900 INFO L168 Benchmark]: Boogie Preprocessor took 78.75 ms. Allocated memory is still 136.3 MB. Free memory was 90.4 MB in the beginning and 85.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:33,900 INFO L168 Benchmark]: RCFGBuilder took 1544.87 ms. Allocated memory is still 136.3 MB. Free memory was 85.7 MB in the beginning and 89.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:33,901 INFO L168 Benchmark]: TraceAbstraction took 14987.14 ms. Allocated memory was 136.3 MB in the beginning and 411.0 MB in the end (delta: 274.7 MB). Free memory was 89.4 MB in the beginning and 149.1 MB in the end (delta: -59.7 MB). Peak memory consumption was 216.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:33,901 INFO L168 Benchmark]: Witness Printer took 238.67 ms. Allocated memory is still 411.0 MB. Free memory was 149.1 MB in the beginning and 373.4 MB in the end (delta: -224.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:33,903 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 48.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 659.82 ms. Allocated memory is still 136.3 MB. Free memory was 106.8 MB in the beginning and 95.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.61 ms. Allocated memory is still 136.3 MB. Free memory was 95.8 MB in the beginning and 90.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.75 ms. Allocated memory is still 136.3 MB. Free memory was 90.4 MB in the beginning and 85.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1544.87 ms. Allocated memory is still 136.3 MB. Free memory was 85.7 MB in the beginning and 89.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14987.14 ms. Allocated memory was 136.3 MB in the beginning and 411.0 MB in the end (delta: 274.7 MB). Free memory was 89.4 MB in the beginning and 149.1 MB in the end (delta: -59.7 MB). Peak memory consumption was 216.1 MB. Max. memory is 16.1 GB. * Witness Printer took 238.67 ms. Allocated memory is still 411.0 MB. Free memory was 149.1 MB in the beginning and 373.4 MB in the end (delta: -224.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((a16 == 6 && a8 <= 13) || a16 <= 5) || (a16 == 6 && 15 <= a8)) || (a21 == 1 && a20 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((a16 == 6 && a8 <= 13) || a16 <= 5) || (a16 == 6 && 15 <= a8)) || (a21 == 1 && a20 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.6s, OverallIterations: 12, TraceHistogramMax: 8, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 690 SDtfs, 1893 SDslu, 75 SDs, 0 SdLazy, 4457 SolverSat, 762 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 770 GetRequests, 744 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2493occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 2753 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 51 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3744 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 2635 NumberOfCodeBlocks, 2635 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2620 ConstructedInterpolants, 0 QuantifiedInterpolants, 1754905 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1477 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 2192/2410 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...