./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label45.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_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label45.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/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 6d4861c19654d56144743310eef6a7eb4ce70026 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:38:52,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:38:52,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:38:52,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:38:52,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:38:52,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:38:52,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:38:52,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:38:52,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:38:52,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:38:52,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:38:52,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:38:52,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:38:52,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:38:52,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:38:52,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:38:52,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:38:52,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:38:52,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:38:52,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:38:52,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:38:52,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:38:52,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:38:52,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:38:52,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:38:52,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:38:52,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:38:52,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:38:52,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:38:52,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:38:52,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:38:52,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:38:52,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:38:52,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:38:52,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:38:52,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:38:52,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:38:52,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:38:52,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:38:52,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:38:52,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:38:52,983 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:38:53,006 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:38:53,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:38:53,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:38:53,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:38:53,009 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:38:53,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:38:53,009 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:38:53,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:38:53,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:38:53,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:38:53,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:38:53,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:38:53,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:38:53,011 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:38:53,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:38:53,012 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:38:53,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:38:53,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:38:53,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:38:53,013 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:38:53,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:38:53,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:38:53,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:38:53,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:38:53,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:38:53,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:38:53,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:38:53,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:38:53,016 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:38:53,016 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_6961bb3e-d68f-40dc-9a41-e225b3e79861/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d4861c19654d56144743310eef6a7eb4ce70026 [2020-11-29 19:38:53,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:38:53,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:38:53,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:38:53,325 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:38:53,327 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:38:53,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label45.c [2020-11-29 19:38:53,390 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/data/1ecdceff0/f8eba0ca710f4e2caf384efbedcd456e/FLAGa9fb54360 [2020-11-29 19:38:53,974 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:38:53,976 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/sv-benchmarks/c/eca-rers2012/Problem01_label45.c [2020-11-29 19:38:53,994 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/data/1ecdceff0/f8eba0ca710f4e2caf384efbedcd456e/FLAGa9fb54360 [2020-11-29 19:38:54,192 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/data/1ecdceff0/f8eba0ca710f4e2caf384efbedcd456e [2020-11-29 19:38:54,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:38:54,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:38:54,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:38:54,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:38:54,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:38:54,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:38:54" (1/1) ... [2020-11-29 19:38:54,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4472061c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:54, skipping insertion in model container [2020-11-29 19:38:54,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:38:54" (1/1) ... [2020-11-29 19:38:54,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:38:54,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:38:54,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:38:54,805 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:38:54,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:38:54,953 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:38:54,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:54 WrapperNode [2020-11-29 19:38:54,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:38:54,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:38:54,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:38:54,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:38:54,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:54" (1/1) ... [2020-11-29 19:38:54,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:54" (1/1) ... [2020-11-29 19:38:55,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:38:55,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:38:55,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:38:55,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:38:55,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:54" (1/1) ... [2020-11-29 19:38:55,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:54" (1/1) ... [2020-11-29 19:38:55,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:54" (1/1) ... [2020-11-29 19:38:55,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:54" (1/1) ... [2020-11-29 19:38:55,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:54" (1/1) ... [2020-11-29 19:38:55,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:54" (1/1) ... [2020-11-29 19:38:55,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:54" (1/1) ... [2020-11-29 19:38:55,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:38:55,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:38:55,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:38:55,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:38:55,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:38:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:38:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:38:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:38:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:38:56,658 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:38:56,659 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 19:38:56,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:38:56 BoogieIcfgContainer [2020-11-29 19:38:56,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:38:56,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:38:56,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:38:56,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:38:56,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:38:54" (1/3) ... [2020-11-29 19:38:56,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b3491f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:38:56, skipping insertion in model container [2020-11-29 19:38:56,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:54" (2/3) ... [2020-11-29 19:38:56,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b3491f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:38:56, skipping insertion in model container [2020-11-29 19:38:56,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:38:56" (3/3) ... [2020-11-29 19:38:56,678 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label45.c [2020-11-29 19:38:56,695 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:38:56,700 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:38:56,714 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:38:56,758 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:38:56,759 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:38:56,759 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:38:56,759 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:38:56,759 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:38:56,759 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:38:56,760 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:38:56,760 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:38:56,785 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-11-29 19:38:56,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-11-29 19:38:56,807 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:38:56,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:38:56,809 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:38:56,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:56,818 INFO L82 PathProgramCache]: Analyzing trace with hash -286323610, now seen corresponding path program 1 times [2020-11-29 19:38:56,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:56,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375867668] [2020-11-29 19:38:56,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:57,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:57,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375867668] [2020-11-29 19:38:57,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:38:57,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:38:57,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162638663] [2020-11-29 19:38:57,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:38:57,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:38:57,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:38:57,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:38:57,508 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-11-29 19:38:58,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:38:58,577 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-11-29 19:38:58,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:38:58,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-11-29 19:38:58,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:38:58,600 INFO L225 Difference]: With dead ends: 529 [2020-11-29 19:38:58,600 INFO L226 Difference]: Without dead ends: 266 [2020-11-29 19:38:58,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:38:58,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-29 19:38:58,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-29 19:38:58,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-29 19:38:58,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2020-11-29 19:38:58,696 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 117 [2020-11-29 19:38:58,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:38:58,697 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2020-11-29 19:38:58,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:38:58,698 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2020-11-29 19:38:58,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-11-29 19:38:58,701 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:38:58,701 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:38:58,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:38:58,701 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:38:58,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:58,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1320516172, now seen corresponding path program 1 times [2020-11-29 19:38:58,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:58,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926422549] [2020-11-29 19:38:58,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:58,801 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:58,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926422549] [2020-11-29 19:38:58,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:38:58,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:38:58,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787152972] [2020-11-29 19:38:58,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:38:58,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:38:58,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:38:58,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:38:58,806 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 3 states. [2020-11-29 19:38:59,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:38:59,336 INFO L93 Difference]: Finished difference Result 794 states and 1136 transitions. [2020-11-29 19:38:59,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:38:59,337 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-11-29 19:38:59,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:38:59,343 INFO L225 Difference]: With dead ends: 794 [2020-11-29 19:38:59,343 INFO L226 Difference]: Without dead ends: 530 [2020-11-29 19:38:59,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:38:59,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-11-29 19:38:59,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 528. [2020-11-29 19:38:59,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-29 19:38:59,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 721 transitions. [2020-11-29 19:38:59,408 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 721 transitions. Word has length 122 [2020-11-29 19:38:59,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:38:59,409 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 721 transitions. [2020-11-29 19:38:59,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:38:59,409 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 721 transitions. [2020-11-29 19:38:59,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-11-29 19:38:59,413 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:38:59,413 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:38:59,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:38:59,414 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:38:59,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:59,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1428049558, now seen corresponding path program 1 times [2020-11-29 19:38:59,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:38:59,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584792544] [2020-11-29 19:38:59,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:38:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:59,566 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:59,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584792544] [2020-11-29 19:38:59,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:38:59,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:38:59,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335644038] [2020-11-29 19:38:59,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:38:59,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:38:59,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:38:59,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:38:59,570 INFO L87 Difference]: Start difference. First operand 528 states and 721 transitions. Second operand 3 states. [2020-11-29 19:39:00,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:39:00,124 INFO L93 Difference]: Finished difference Result 1578 states and 2158 transitions. [2020-11-29 19:39:00,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:39:00,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-11-29 19:39:00,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:39:00,134 INFO L225 Difference]: With dead ends: 1578 [2020-11-29 19:39:00,134 INFO L226 Difference]: Without dead ends: 1052 [2020-11-29 19:39:00,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:39:00,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-11-29 19:39:00,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2020-11-29 19:39:00,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-11-29 19:39:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1365 transitions. [2020-11-29 19:39:00,194 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1365 transitions. Word has length 126 [2020-11-29 19:39:00,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:39:00,198 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1365 transitions. [2020-11-29 19:39:00,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:39:00,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1365 transitions. [2020-11-29 19:39:00,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-11-29 19:39:00,203 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:39:00,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:39:00,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 19:39:00,204 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:39:00,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:39:00,205 INFO L82 PathProgramCache]: Analyzing trace with hash 164685601, now seen corresponding path program 1 times [2020-11-29 19:39:00,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:39:00,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467696078] [2020-11-29 19:39:00,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:39:00,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:00,326 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:39:00,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467696078] [2020-11-29 19:39:00,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:39:00,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:39:00,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102449856] [2020-11-29 19:39:00,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:39:00,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:39:00,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:39:00,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:39:00,331 INFO L87 Difference]: Start difference. First operand 1052 states and 1365 transitions. Second operand 4 states. [2020-11-29 19:39:01,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:39:01,200 INFO L93 Difference]: Finished difference Result 2626 states and 3384 transitions. [2020-11-29 19:39:01,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:39:01,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 129 [2020-11-29 19:39:01,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:39:01,209 INFO L225 Difference]: With dead ends: 2626 [2020-11-29 19:39:01,209 INFO L226 Difference]: Without dead ends: 1576 [2020-11-29 19:39:01,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:39:01,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2020-11-29 19:39:01,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1314. [2020-11-29 19:39:01,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-11-29 19:39:01,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1657 transitions. [2020-11-29 19:39:01,258 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1657 transitions. Word has length 129 [2020-11-29 19:39:01,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:39:01,258 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1657 transitions. [2020-11-29 19:39:01,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:39:01,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1657 transitions. [2020-11-29 19:39:01,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-11-29 19:39:01,262 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:39:01,262 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:39:01,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 19:39:01,263 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:39:01,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:39:01,263 INFO L82 PathProgramCache]: Analyzing trace with hash 676955088, now seen corresponding path program 1 times [2020-11-29 19:39:01,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:39:01,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449228608] [2020-11-29 19:39:01,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:39:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:39:01,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449228608] [2020-11-29 19:39:01,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:39:01,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:39:01,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722489284] [2020-11-29 19:39:01,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:39:01,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:39:01,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:39:01,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:39:01,323 INFO L87 Difference]: Start difference. First operand 1314 states and 1657 transitions. Second operand 3 states. [2020-11-29 19:39:01,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:39:01,938 INFO L93 Difference]: Finished difference Result 3543 states and 4507 transitions. [2020-11-29 19:39:01,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:39:01,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-11-29 19:39:01,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:39:01,951 INFO L225 Difference]: With dead ends: 3543 [2020-11-29 19:39:01,951 INFO L226 Difference]: Without dead ends: 2231 [2020-11-29 19:39:01,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:39:01,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-11-29 19:39:02,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1838. [2020-11-29 19:39:02,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-11-29 19:39:02,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2351 transitions. [2020-11-29 19:39:02,016 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2351 transitions. Word has length 130 [2020-11-29 19:39:02,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:39:02,016 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 2351 transitions. [2020-11-29 19:39:02,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:39:02,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2351 transitions. [2020-11-29 19:39:02,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-11-29 19:39:02,021 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:39:02,021 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:39:02,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 19:39:02,021 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:39:02,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:39:02,022 INFO L82 PathProgramCache]: Analyzing trace with hash 976640279, now seen corresponding path program 1 times [2020-11-29 19:39:02,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:39:02,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082464492] [2020-11-29 19:39:02,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:39:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:02,095 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 19:39:02,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082464492] [2020-11-29 19:39:02,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:39:02,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:39:02,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149470657] [2020-11-29 19:39:02,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:39:02,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:39:02,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:39:02,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:39:02,100 INFO L87 Difference]: Start difference. First operand 1838 states and 2351 transitions. Second operand 3 states. [2020-11-29 19:39:02,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:39:02,660 INFO L93 Difference]: Finished difference Result 4067 states and 5165 transitions. [2020-11-29 19:39:02,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:39:02,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-11-29 19:39:02,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:39:02,673 INFO L225 Difference]: With dead ends: 4067 [2020-11-29 19:39:02,673 INFO L226 Difference]: Without dead ends: 2231 [2020-11-29 19:39:02,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:39:02,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-11-29 19:39:02,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2231. [2020-11-29 19:39:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-11-29 19:39:02,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2762 transitions. [2020-11-29 19:39:02,738 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2762 transitions. Word has length 133 [2020-11-29 19:39:02,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:39:02,741 INFO L481 AbstractCegarLoop]: Abstraction has 2231 states and 2762 transitions. [2020-11-29 19:39:02,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:39:02,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2762 transitions. [2020-11-29 19:39:02,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-11-29 19:39:02,746 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:39:02,747 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:39:02,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 19:39:02,747 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:39:02,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:39:02,748 INFO L82 PathProgramCache]: Analyzing trace with hash -2048282979, now seen corresponding path program 1 times [2020-11-29 19:39:02,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:39:02,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252206011] [2020-11-29 19:39:02,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:39:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:02,837 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 19:39:02,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252206011] [2020-11-29 19:39:02,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:39:02,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:39:02,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316673704] [2020-11-29 19:39:02,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:39:02,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:39:02,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:39:02,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:39:02,841 INFO L87 Difference]: Start difference. First operand 2231 states and 2762 transitions. Second operand 4 states. [2020-11-29 19:39:03,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:39:03,644 INFO L93 Difference]: Finished difference Result 4591 states and 5671 transitions. [2020-11-29 19:39:03,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:39:03,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2020-11-29 19:39:03,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:39:03,657 INFO L225 Difference]: With dead ends: 4591 [2020-11-29 19:39:03,657 INFO L226 Difference]: Without dead ends: 2362 [2020-11-29 19:39:03,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:39:03,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-11-29 19:39:03,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2100. [2020-11-29 19:39:03,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-11-29 19:39:03,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2559 transitions. [2020-11-29 19:39:03,717 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2559 transitions. Word has length 137 [2020-11-29 19:39:03,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:39:03,717 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2559 transitions. [2020-11-29 19:39:03,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:39:03,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2559 transitions. [2020-11-29 19:39:03,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-11-29 19:39:03,722 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:39:03,723 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:39:03,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 19:39:03,723 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:39:03,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:39:03,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1846295544, now seen corresponding path program 1 times [2020-11-29 19:39:03,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:39:03,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89045347] [2020-11-29 19:39:03,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:39:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:03,836 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:39:03,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89045347] [2020-11-29 19:39:03,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:39:03,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:39:03,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846236523] [2020-11-29 19:39:03,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:39:03,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:39:03,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:39:03,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:39:03,838 INFO L87 Difference]: Start difference. First operand 2100 states and 2559 transitions. Second operand 3 states. [2020-11-29 19:39:04,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:39:04,337 INFO L93 Difference]: Finished difference Result 4591 states and 5539 transitions. [2020-11-29 19:39:04,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:39:04,337 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-11-29 19:39:04,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:39:04,349 INFO L225 Difference]: With dead ends: 4591 [2020-11-29 19:39:04,349 INFO L226 Difference]: Without dead ends: 2231 [2020-11-29 19:39:04,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:39:04,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-11-29 19:39:04,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2231. [2020-11-29 19:39:04,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-11-29 19:39:04,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2516 transitions. [2020-11-29 19:39:04,426 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2516 transitions. Word has length 146 [2020-11-29 19:39:04,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:39:04,426 INFO L481 AbstractCegarLoop]: Abstraction has 2231 states and 2516 transitions. [2020-11-29 19:39:04,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:39:04,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2516 transitions. [2020-11-29 19:39:04,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-11-29 19:39:04,432 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:39:04,432 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:39:04,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 19:39:04,432 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:39:04,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:39:04,433 INFO L82 PathProgramCache]: Analyzing trace with hash -14018494, now seen corresponding path program 1 times [2020-11-29 19:39:04,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:39:04,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857248823] [2020-11-29 19:39:04,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:39:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:04,559 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:39:04,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857248823] [2020-11-29 19:39:04,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538229147] [2020-11-29 19:39:04,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:39:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:04,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:39:04,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:39:04,891 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 19:39:04,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:39:04,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 19:39:04,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59356029] [2020-11-29 19:39:04,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:39:04,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:39:04,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:39:04,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:39:04,894 INFO L87 Difference]: Start difference. First operand 2231 states and 2516 transitions. Second operand 3 states. [2020-11-29 19:39:05,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:39:05,428 INFO L93 Difference]: Finished difference Result 5115 states and 5802 transitions. [2020-11-29 19:39:05,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:39:05,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-11-29 19:39:05,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:39:05,444 INFO L225 Difference]: With dead ends: 5115 [2020-11-29 19:39:05,445 INFO L226 Difference]: Without dead ends: 2886 [2020-11-29 19:39:05,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:39:05,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2020-11-29 19:39:05,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2886. [2020-11-29 19:39:05,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2886 states. [2020-11-29 19:39:05,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3241 transitions. [2020-11-29 19:39:05,511 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3241 transitions. Word has length 150 [2020-11-29 19:39:05,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:39:05,512 INFO L481 AbstractCegarLoop]: Abstraction has 2886 states and 3241 transitions. [2020-11-29 19:39:05,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:39:05,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3241 transitions. [2020-11-29 19:39:05,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-11-29 19:39:05,518 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:39:05,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:39:05,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-11-29 19:39:05,732 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:39:05,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:39:05,732 INFO L82 PathProgramCache]: Analyzing trace with hash 318123251, now seen corresponding path program 1 times [2020-11-29 19:39:05,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:39:05,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338010160] [2020-11-29 19:39:05,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:39:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:05,842 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-29 19:39:05,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338010160] [2020-11-29 19:39:05,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915165750] [2020-11-29 19:39:05,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:39:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:05,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:39:05,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:39:06,058 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-29 19:39:06,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:39:06,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 19:39:06,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413701797] [2020-11-29 19:39:06,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:39:06,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:39:06,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:39:06,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:39:06,060 INFO L87 Difference]: Start difference. First operand 2886 states and 3241 transitions. Second operand 3 states. [2020-11-29 19:39:06,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:39:06,570 INFO L93 Difference]: Finished difference Result 6163 states and 6892 transitions. [2020-11-29 19:39:06,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:39:06,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2020-11-29 19:39:06,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:39:06,588 INFO L225 Difference]: With dead ends: 6163 [2020-11-29 19:39:06,588 INFO L226 Difference]: Without dead ends: 3279 [2020-11-29 19:39:06,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:39:06,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2020-11-29 19:39:06,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3148. [2020-11-29 19:39:06,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3148 states. [2020-11-29 19:39:06,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3466 transitions. [2020-11-29 19:39:06,670 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3466 transitions. Word has length 166 [2020-11-29 19:39:06,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:39:06,671 INFO L481 AbstractCegarLoop]: Abstraction has 3148 states and 3466 transitions. [2020-11-29 19:39:06,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:39:06,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3466 transitions. [2020-11-29 19:39:06,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-11-29 19:39:06,677 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:39:06,678 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:39:06,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-29 19:39:06,896 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:39:06,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:39:06,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1987542747, now seen corresponding path program 1 times [2020-11-29 19:39:06,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:39:06,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586428205] [2020-11-29 19:39:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:39:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-11-29 19:39:07,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586428205] [2020-11-29 19:39:07,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:39:07,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:39:07,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644785153] [2020-11-29 19:39:07,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:39:07,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:39:07,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:39:07,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:39:07,097 INFO L87 Difference]: Start difference. First operand 3148 states and 3466 transitions. Second operand 3 states. [2020-11-29 19:39:07,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:39:07,580 INFO L93 Difference]: Finished difference Result 7211 states and 7973 transitions. [2020-11-29 19:39:07,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:39:07,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-11-29 19:39:07,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:39:07,602 INFO L225 Difference]: With dead ends: 7211 [2020-11-29 19:39:07,602 INFO L226 Difference]: Without dead ends: 4065 [2020-11-29 19:39:07,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:39:07,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4065 states. [2020-11-29 19:39:07,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4065 to 3541. [2020-11-29 19:39:07,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3541 states. [2020-11-29 19:39:07,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 3914 transitions. [2020-11-29 19:39:07,688 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 3914 transitions. Word has length 167 [2020-11-29 19:39:07,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:39:07,689 INFO L481 AbstractCegarLoop]: Abstraction has 3541 states and 3914 transitions. [2020-11-29 19:39:07,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:39:07,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 3914 transitions. [2020-11-29 19:39:07,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-11-29 19:39:07,698 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:39:07,698 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 19:39:07,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 19:39:07,699 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:39:07,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:39:07,699 INFO L82 PathProgramCache]: Analyzing trace with hash -72606576, now seen corresponding path program 1 times [2020-11-29 19:39:07,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:39:07,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847755850] [2020-11-29 19:39:07,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:39:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:07,857 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 64 proven. 3 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-11-29 19:39:07,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847755850] [2020-11-29 19:39:07,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270578259] [2020-11-29 19:39:07,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:39:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:07,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:39:07,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:39:08,056 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-29 19:39:08,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:39:08,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 19:39:08,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493958424] [2020-11-29 19:39:08,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:39:08,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:39:08,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:39:08,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:39:08,059 INFO L87 Difference]: Start difference. First operand 3541 states and 3914 transitions. Second operand 3 states. [2020-11-29 19:39:08,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:39:08,542 INFO L93 Difference]: Finished difference Result 7602 states and 8396 transitions. [2020-11-29 19:39:08,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:39:08,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2020-11-29 19:39:08,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:39:08,544 INFO L225 Difference]: With dead ends: 7602 [2020-11-29 19:39:08,544 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:39:08,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:39:08,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:39:08,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:39:08,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:39:08,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:39:08,551 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 219 [2020-11-29 19:39:08,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:39:08,551 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:39:08,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:39:08,551 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:39:08,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:39:08,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-29 19:39:08,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:39:08,968 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-29 19:39:08,969 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-29 19:39:08,969 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-29 19:39:08,969 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-29 19:39:08,969 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-29 19:39:08,969 INFO L274 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-11-29 19:39:08,969 INFO L274 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-11-29 19:39:08,969 INFO L274 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-11-29 19:39:08,969 INFO L274 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,969 INFO L274 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,969 INFO L274 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,970 INFO L274 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,970 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-11-29 19:39:08,970 INFO L274 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,970 INFO L274 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,970 INFO L274 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-11-29 19:39:08,970 INFO L274 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-11-29 19:39:08,970 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-29 19:39:08,970 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-29 19:39:08,970 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-29 19:39:08,970 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-29 19:39:08,971 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-29 19:39:08,971 INFO L274 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-11-29 19:39:08,971 INFO L274 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-11-29 19:39:08,971 INFO L274 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-11-29 19:39:08,971 INFO L274 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-11-29 19:39:08,971 INFO L274 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-11-29 19:39:08,971 INFO L274 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,971 INFO L274 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,971 INFO L274 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,971 INFO L274 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,972 INFO L274 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,972 INFO L274 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-11-29 19:39:08,972 INFO L274 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,972 INFO L274 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-11-29 19:39:08,972 INFO L274 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-11-29 19:39:08,972 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-29 19:39:08,972 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-29 19:39:08,972 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-29 19:39:08,972 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-29 19:39:08,972 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-29 19:39:08,972 INFO L274 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2020-11-29 19:39:08,972 INFO L274 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-11-29 19:39:08,973 INFO L274 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-11-29 19:39:08,973 INFO L274 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-11-29 19:39:08,973 INFO L274 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-11-29 19:39:08,973 INFO L274 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-11-29 19:39:08,973 INFO L274 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-11-29 19:39:08,973 INFO L274 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,973 INFO L274 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,973 INFO L274 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,973 INFO L274 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,973 INFO L274 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,974 INFO L274 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,974 INFO L274 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-11-29 19:39:08,974 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-29 19:39:08,974 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-29 19:39:08,974 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-29 19:39:08,974 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-29 19:39:08,974 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-29 19:39:08,974 INFO L274 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-11-29 19:39:08,974 INFO L274 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-11-29 19:39:08,974 INFO L274 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-11-29 19:39:08,974 INFO L274 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-11-29 19:39:08,975 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 19:39:08,978 INFO L274 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-11-29 19:39:08,978 INFO L274 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-11-29 19:39:08,978 INFO L274 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,979 INFO L274 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,979 INFO L274 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,979 INFO L274 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,979 INFO L274 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,979 INFO L274 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,979 INFO L274 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-11-29 19:39:08,979 INFO L274 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-11-29 19:39:08,979 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-29 19:39:08,980 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-29 19:39:08,980 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-29 19:39:08,980 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-29 19:39:08,980 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-29 19:39:08,980 INFO L274 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2020-11-29 19:39:08,980 INFO L274 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-11-29 19:39:08,980 INFO L274 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-11-29 19:39:08,980 INFO L274 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,981 INFO L274 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,981 INFO L274 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,981 INFO L274 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,981 INFO L274 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,981 INFO L274 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,981 INFO L274 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-11-29 19:39:08,981 INFO L274 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-11-29 19:39:08,981 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-29 19:39:08,982 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-29 19:39:08,982 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-29 19:39:08,982 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-29 19:39:08,982 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-29 19:39:08,982 INFO L274 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2020-11-29 19:39:08,982 INFO L274 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-11-29 19:39:08,982 INFO L274 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-11-29 19:39:08,982 INFO L274 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-11-29 19:39:08,983 INFO L274 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-11-29 19:39:08,983 INFO L274 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-11-29 19:39:08,983 INFO L274 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-11-29 19:39:08,983 INFO L274 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-11-29 19:39:08,983 INFO L274 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,983 INFO L274 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,983 INFO L274 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,983 INFO L274 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,984 INFO L274 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,984 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:39:08,984 INFO L274 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-11-29 19:39:08,984 INFO L274 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-11-29 19:39:08,984 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-29 19:39:08,984 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-29 19:39:08,984 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-29 19:39:08,985 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-29 19:39:08,985 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-29 19:39:08,985 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-29 19:39:08,985 INFO L274 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-11-29 19:39:08,985 INFO L270 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (= ~a20~0 1))) (or (and .cse0 (= ~a17~0 1)) (and (<= 14 ~a8~0) (<= ~a16~0 5)) (<= ~a16~0 4) (and (<= 6 ~a16~0) .cse0) (<= 15 ~a8~0))) [2020-11-29 19:39:08,985 INFO L274 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,986 INFO L274 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,986 INFO L274 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,986 INFO L274 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,986 INFO L274 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,986 INFO L274 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-11-29 19:39:08,986 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-29 19:39:08,986 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-29 19:39:08,986 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-29 19:39:08,987 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-29 19:39:08,987 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-29 19:39:08,988 INFO L274 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-11-29 19:39:08,988 INFO L274 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-11-29 19:39:08,988 INFO L274 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-11-29 19:39:08,988 INFO L274 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-11-29 19:39:08,988 INFO L274 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-11-29 19:39:08,988 INFO L274 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-11-29 19:39:08,988 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:39:08,988 INFO L274 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-11-29 19:39:08,989 INFO L277 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-11-29 19:39:08,989 INFO L274 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,989 INFO L274 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,989 INFO L274 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,989 INFO L274 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,989 INFO L274 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,989 INFO L274 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-11-29 19:39:08,989 INFO L274 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-11-29 19:39:08,990 INFO L274 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-11-29 19:39:08,990 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-29 19:39:08,990 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-29 19:39:08,990 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-29 19:39:08,990 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-29 19:39:08,990 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-29 19:39:08,990 INFO L274 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-11-29 19:39:08,990 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:39:08,991 INFO L274 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,991 INFO L274 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,991 INFO L274 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,991 INFO L274 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,991 INFO L274 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-11-29 19:39:08,991 INFO L274 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,991 INFO L274 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-11-29 19:39:08,991 INFO L274 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-11-29 19:39:08,992 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-29 19:39:08,992 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-29 19:39:08,992 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-29 19:39:08,992 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-29 19:39:08,992 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-29 19:39:08,992 INFO L274 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-11-29 19:39:08,993 INFO L274 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-11-29 19:39:08,993 INFO L274 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-11-29 19:39:08,993 INFO L274 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-11-29 19:39:08,993 INFO L274 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-11-29 19:39:08,993 INFO L274 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-11-29 19:39:08,994 INFO L274 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,994 INFO L270 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (= ~a20~0 1))) (or (and .cse0 (= ~a17~0 1)) (and (<= 14 ~a8~0) (<= ~a16~0 5)) (<= ~a16~0 4) (and (<= 6 ~a16~0) .cse0) (<= 15 ~a8~0))) [2020-11-29 19:39:08,994 INFO L274 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,994 INFO L274 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,994 INFO L274 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,994 INFO L274 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,994 INFO L274 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-11-29 19:39:08,995 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:39:08,995 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 19:39:08,995 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-29 19:39:08,995 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-29 19:39:08,995 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-29 19:39:08,995 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-29 19:39:08,995 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-29 19:39:08,996 INFO L274 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-11-29 19:39:08,996 INFO L274 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-11-29 19:39:08,996 INFO L274 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,996 INFO L274 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,996 INFO L274 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,996 INFO L274 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,996 INFO L274 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-11-29 19:39:08,996 INFO L274 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-11-29 19:39:08,997 INFO L274 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-11-29 19:39:08,997 INFO L274 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-11-29 19:39:08,997 INFO L274 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-11-29 19:39:09,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:39:09 BoogieIcfgContainer [2020-11-29 19:39:09,019 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:39:09,020 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:39:09,020 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:39:09,020 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:39:09,021 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:38:56" (3/4) ... [2020-11-29 19:39:09,025 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:39:09,053 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 19:39:09,055 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 19:39:09,056 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:39:09,057 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:39:09,259 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6961bb3e-d68f-40dc-9a41-e225b3e79861/bin/uautomizer/witness.graphml [2020-11-29 19:39:09,259 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:39:09,261 INFO L168 Benchmark]: Toolchain (without parser) took 15064.11 ms. Allocated memory was 96.5 MB in the beginning and 375.4 MB in the end (delta: 278.9 MB). Free memory was 64.8 MB in the beginning and 243.6 MB in the end (delta: -178.9 MB). Peak memory consumption was 100.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:09,262 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 96.5 MB. Free memory was 51.4 MB in the beginning and 51.3 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:39:09,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 754.40 ms. Allocated memory is still 96.5 MB. Free memory was 64.6 MB in the beginning and 53.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:09,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.23 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 53.5 MB in the beginning and 92.5 MB in the end (delta: -38.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:09,264 INFO L168 Benchmark]: Boogie Preprocessor took 77.81 ms. Allocated memory is still 117.4 MB. Free memory was 92.4 MB in the beginning and 88.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:09,264 INFO L168 Benchmark]: RCFGBuilder took 1499.48 ms. Allocated memory is still 117.4 MB. Free memory was 88.9 MB in the beginning and 57.8 MB in the end (delta: 31.1 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:09,264 INFO L168 Benchmark]: TraceAbstraction took 12351.89 ms. Allocated memory was 117.4 MB in the beginning and 375.4 MB in the end (delta: 257.9 MB). Free memory was 57.1 MB in the beginning and 258.3 MB in the end (delta: -201.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:09,265 INFO L168 Benchmark]: Witness Printer took 239.57 ms. Allocated memory is still 375.4 MB. Free memory was 258.3 MB in the beginning and 243.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:09,268 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 96.5 MB. Free memory was 51.4 MB in the beginning and 51.3 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 754.40 ms. Allocated memory is still 96.5 MB. Free memory was 64.6 MB in the beginning and 53.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 130.23 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 53.5 MB in the beginning and 92.5 MB in the end (delta: -38.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.81 ms. Allocated memory is still 117.4 MB. Free memory was 92.4 MB in the beginning and 88.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1499.48 ms. Allocated memory is still 117.4 MB. Free memory was 88.9 MB in the beginning and 57.8 MB in the end (delta: 31.1 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12351.89 ms. Allocated memory was 117.4 MB in the beginning and 375.4 MB in the end (delta: 257.9 MB). Free memory was 57.1 MB in the beginning and 258.3 MB in the end (delta: -201.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 16.1 GB. * Witness Printer took 239.57 ms. Allocated memory is still 375.4 MB. Free memory was 258.3 MB in the beginning and 243.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((a20 == 1 && a17 == 1) || (14 <= a8 && a16 <= 5)) || a16 <= 4) || (6 <= a16 && a20 == 1)) || 15 <= a8 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((a20 == 1 && a17 == 1) || (14 <= a8 && a16 <= 5)) || a16 <= 4) || (6 <= a16 && a20 == 1)) || 15 <= a8 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.9s, OverallIterations: 12, TraceHistogramMax: 5, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 752 SDtfs, 1494 SDslu, 72 SDs, 0 SdLazy, 4390 SolverSat, 794 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 562 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3541occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 1574 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 71 NumberOfFragments, 57 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2338 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 96 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 2277 NumberOfCodeBlocks, 2277 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2262 ConstructedInterpolants, 0 QuantifiedInterpolants, 728136 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1052 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 660/669 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...