./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9072a9376e1e28de1ef4dc11b7134f6f175023b7 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:57:49,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:57:49,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:57:49,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:57:49,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:57:49,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:57:49,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:57:50,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:57:50,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:57:50,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:57:50,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:57:50,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:57:50,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:57:50,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:57:50,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:57:50,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:57:50,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:57:50,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:57:50,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:57:50,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:57:50,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:57:50,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:57:50,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:57:50,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:57:50,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:57:50,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:57:50,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:57:50,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:57:50,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:57:50,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:57:50,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:57:50,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:57:50,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:57:50,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:57:50,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:57:50,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:57:50,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:57:50,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:57:50,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:57:50,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:57:50,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:57:50,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 02:57:50,071 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:57:50,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:57:50,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:57:50,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:57:50,073 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:57:50,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:57:50,074 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:57:50,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:57:50,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:57:50,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:57:50,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:57:50,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:57:50,075 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 02:57:50,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:57:50,076 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:57:50,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:57:50,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:57:50,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:57:50,077 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:57:50,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:57:50,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:57:50,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:57:50,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:57:50,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:57:50,078 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:57:50,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:57:50,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:57:50,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:57:50,079 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_75ee6221-4209-4c4e-aaac-5cb7930aefe4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9072a9376e1e28de1ef4dc11b7134f6f175023b7 [2020-11-28 02:57:50,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:57:50,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:57:50,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:57:50,402 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:57:50,403 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:57:50,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b.c [2020-11-28 02:57:50,511 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer/data/e672e1750/394dbb74261b4ea1acb53a1b6a02dbfe/FLAGf1947bc84 [2020-11-28 02:57:51,114 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:57:51,116 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/sv-benchmarks/c/termination-crafted/MutualRecursion_1b.c [2020-11-28 02:57:51,126 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer/data/e672e1750/394dbb74261b4ea1acb53a1b6a02dbfe/FLAGf1947bc84 [2020-11-28 02:57:51,501 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer/data/e672e1750/394dbb74261b4ea1acb53a1b6a02dbfe [2020-11-28 02:57:51,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:57:51,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:57:51,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:51,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:57:51,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:57:51,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49a0d0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51, skipping insertion in model container [2020-11-28 02:57:51,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:57:51,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:51,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:51,727 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:57:51,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:51,783 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:57:51,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51 WrapperNode [2020-11-28 02:57:51,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:51,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:51,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:57:51,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:57:51,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:51,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:57:51,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:57:51,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:57:51,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:57:51,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:57:51,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:57:51,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:57:51,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:57:51,961 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-11-28 02:57:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-11-28 02:57:51,963 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-11-28 02:57:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-11-28 02:57:51,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:57:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:57:52,274 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:57:52,282 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-28 02:57:52,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:52 BoogieIcfgContainer [2020-11-28 02:57:52,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:57:52,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:57:52,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:57:52,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:57:52,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:57:51" (1/3) ... [2020-11-28 02:57:52,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f96dd48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:57:52, skipping insertion in model container [2020-11-28 02:57:52,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (2/3) ... [2020-11-28 02:57:52,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f96dd48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:57:52, skipping insertion in model container [2020-11-28 02:57:52,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:52" (3/3) ... [2020-11-28 02:57:52,310 INFO L111 eAbstractionObserver]: Analyzing ICFG MutualRecursion_1b.c [2020-11-28 02:57:52,323 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:57:52,328 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-11-28 02:57:52,349 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-11-28 02:57:52,391 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:57:52,391 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:57:52,392 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:57:52,392 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:57:52,392 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:57:52,392 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:57:52,393 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:57:52,395 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:57:52,434 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-11-28 02:57:52,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 02:57:52,439 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:52,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:52,440 INFO L429 AbstractCegarLoop]: === Iteration 1 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:57:52,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:52,447 INFO L82 PathProgramCache]: Analyzing trace with hash 68150020, now seen corresponding path program 1 times [2020-11-28 02:57:52,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:52,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613584493] [2020-11-28 02:57:52,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:52,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:52,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613584493] [2020-11-28 02:57:52,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:52,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:52,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948879884] [2020-11-28 02:57:52,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:57:52,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:52,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:52,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:52,711 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 5 states. [2020-11-28 02:57:52,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:52,851 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2020-11-28 02:57:52,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:57:52,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-11-28 02:57:52,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:52,863 INFO L225 Difference]: With dead ends: 64 [2020-11-28 02:57:52,863 INFO L226 Difference]: Without dead ends: 56 [2020-11-28 02:57:52,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:52,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-28 02:57:52,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2020-11-28 02:57:52,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-28 02:57:52,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2020-11-28 02:57:52,946 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 5 [2020-11-28 02:57:52,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:52,947 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2020-11-28 02:57:52,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:57:52,948 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2020-11-28 02:57:52,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 02:57:52,949 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:52,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 02:57:52,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:57:52,951 INFO L429 AbstractCegarLoop]: === Iteration 2 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:57:52,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:52,955 INFO L82 PathProgramCache]: Analyzing trace with hash 2112650676, now seen corresponding path program 1 times [2020-11-28 02:57:52,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:52,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177224072] [2020-11-28 02:57:52,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:52,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:53,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177224072] [2020-11-28 02:57:53,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:53,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:53,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310863360] [2020-11-28 02:57:53,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:57:53,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:53,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:53,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:53,009 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand 3 states. [2020-11-28 02:57:53,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:53,044 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2020-11-28 02:57:53,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:53,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 02:57:53,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:53,047 INFO L225 Difference]: With dead ends: 52 [2020-11-28 02:57:53,047 INFO L226 Difference]: Without dead ends: 50 [2020-11-28 02:57:53,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:53,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-28 02:57:53,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-11-28 02:57:53,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-11-28 02:57:53,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2020-11-28 02:57:53,062 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 6 [2020-11-28 02:57:53,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:53,062 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2020-11-28 02:57:53,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:57:53,063 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2020-11-28 02:57:53,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 02:57:53,064 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:53,064 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:53,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:57:53,064 INFO L429 AbstractCegarLoop]: === Iteration 3 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:57:53,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:53,065 INFO L82 PathProgramCache]: Analyzing trace with hash 803040358, now seen corresponding path program 1 times [2020-11-28 02:57:53,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:53,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763746472] [2020-11-28 02:57:53,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:53,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763746472] [2020-11-28 02:57:53,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:53,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 02:57:53,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224761646] [2020-11-28 02:57:53,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 02:57:53,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:53,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 02:57:53,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-28 02:57:53,214 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 9 states. [2020-11-28 02:57:53,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:53,487 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2020-11-28 02:57:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 02:57:53,488 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2020-11-28 02:57:53,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:53,490 INFO L225 Difference]: With dead ends: 66 [2020-11-28 02:57:53,490 INFO L226 Difference]: Without dead ends: 63 [2020-11-28 02:57:53,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-11-28 02:57:53,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-28 02:57:53,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-11-28 02:57:53,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-28 02:57:53,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2020-11-28 02:57:53,504 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 13 [2020-11-28 02:57:53,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:53,505 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2020-11-28 02:57:53,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 02:57:53,505 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2020-11-28 02:57:53,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 02:57:53,507 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:53,507 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:53,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:57:53,508 INFO L429 AbstractCegarLoop]: === Iteration 4 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:57:53,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:53,509 INFO L82 PathProgramCache]: Analyzing trace with hash -265858514, now seen corresponding path program 1 times [2020-11-28 02:57:53,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:53,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791397103] [2020-11-28 02:57:53,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-28 02:57:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 02:57:53,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791397103] [2020-11-28 02:57:53,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:53,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:53,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884330757] [2020-11-28 02:57:53,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:57:53,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:53,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:53,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:53,565 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand 3 states. [2020-11-28 02:57:53,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:53,589 INFO L93 Difference]: Finished difference Result 61 states and 77 transitions. [2020-11-28 02:57:53,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:53,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 02:57:53,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:53,592 INFO L225 Difference]: With dead ends: 61 [2020-11-28 02:57:53,594 INFO L226 Difference]: Without dead ends: 60 [2020-11-28 02:57:53,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:53,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-28 02:57:53,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2020-11-28 02:57:53,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-11-28 02:57:53,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2020-11-28 02:57:53,623 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 17 [2020-11-28 02:57:53,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:53,623 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2020-11-28 02:57:53,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:57:53,624 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2020-11-28 02:57:53,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 02:57:53,625 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:53,626 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:53,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:57:53,626 INFO L429 AbstractCegarLoop]: === Iteration 5 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:57:53,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:53,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1650762684, now seen corresponding path program 1 times [2020-11-28 02:57:53,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:53,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190441912] [2020-11-28 02:57:53,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 02:57:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-28 02:57:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 02:57:53,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190441912] [2020-11-28 02:57:53,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:53,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:57:53,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919625452] [2020-11-28 02:57:53,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:57:53,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:53,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:53,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:53,744 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 5 states. [2020-11-28 02:57:53,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:53,822 INFO L93 Difference]: Finished difference Result 93 states and 122 transitions. [2020-11-28 02:57:53,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:57:53,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-28 02:57:53,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:53,825 INFO L225 Difference]: With dead ends: 93 [2020-11-28 02:57:53,825 INFO L226 Difference]: Without dead ends: 92 [2020-11-28 02:57:53,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:53,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-11-28 02:57:53,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 78. [2020-11-28 02:57:53,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-28 02:57:53,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2020-11-28 02:57:53,852 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 21 [2020-11-28 02:57:53,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:53,853 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2020-11-28 02:57:53,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:57:53,853 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2020-11-28 02:57:53,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 02:57:53,855 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:53,856 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:53,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:57:53,857 INFO L429 AbstractCegarLoop]: === Iteration 6 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:57:53,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:53,860 INFO L82 PathProgramCache]: Analyzing trace with hash 365964416, now seen corresponding path program 1 times [2020-11-28 02:57:53,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:53,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037053378] [2020-11-28 02:57:53,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 02:57:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-28 02:57:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:53,935 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 02:57:53,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037053378] [2020-11-28 02:57:53,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:53,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:57:53,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369005023] [2020-11-28 02:57:53,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:57:53,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:53,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:53,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:53,939 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand 5 states. [2020-11-28 02:57:54,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:54,009 INFO L93 Difference]: Finished difference Result 93 states and 119 transitions. [2020-11-28 02:57:54,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:57:54,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-28 02:57:54,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:54,012 INFO L225 Difference]: With dead ends: 93 [2020-11-28 02:57:54,013 INFO L226 Difference]: Without dead ends: 89 [2020-11-28 02:57:54,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:54,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-28 02:57:54,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 78. [2020-11-28 02:57:54,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-28 02:57:54,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 99 transitions. [2020-11-28 02:57:54,034 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 99 transitions. Word has length 22 [2020-11-28 02:57:54,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:54,035 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 99 transitions. [2020-11-28 02:57:54,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:57:54,040 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 99 transitions. [2020-11-28 02:57:54,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 02:57:54,042 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:54,042 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-28 02:57:54,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 02:57:54,043 INFO L429 AbstractCegarLoop]: === Iteration 7 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:57:54,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:54,043 INFO L82 PathProgramCache]: Analyzing trace with hash -2082036524, now seen corresponding path program 1 times [2020-11-28 02:57:54,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:54,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625852540] [2020-11-28 02:57:54,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:54,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 02:57:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:54,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-11-28 02:57:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:54,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-11-28 02:57:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:54,149 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 02:57:54,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625852540] [2020-11-28 02:57:54,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774781379] [2020-11-28 02:57:54,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:57:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:54,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:57:54,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:54,376 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 02:57:54,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 02:57:54,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2020-11-28 02:57:54,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032562921] [2020-11-28 02:57:54,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 02:57:54,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:54,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 02:57:54,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-11-28 02:57:54,379 INFO L87 Difference]: Start difference. First operand 78 states and 99 transitions. Second operand 10 states. [2020-11-28 02:57:54,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:54,724 INFO L93 Difference]: Finished difference Result 157 states and 204 transitions. [2020-11-28 02:57:54,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 02:57:54,725 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-11-28 02:57:54,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:54,726 INFO L225 Difference]: With dead ends: 157 [2020-11-28 02:57:54,726 INFO L226 Difference]: Without dead ends: 82 [2020-11-28 02:57:54,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-11-28 02:57:54,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-11-28 02:57:54,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2020-11-28 02:57:54,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-28 02:57:54,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 92 transitions. [2020-11-28 02:57:54,750 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 92 transitions. Word has length 32 [2020-11-28 02:57:54,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:54,750 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 92 transitions. [2020-11-28 02:57:54,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 02:57:54,751 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 92 transitions. [2020-11-28 02:57:54,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-11-28 02:57:54,755 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:54,755 INFO L422 BasicCegarLoop]: trace histogram [9, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-11-28 02:57:54,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-28 02:57:54,980 INFO L429 AbstractCegarLoop]: === Iteration 8 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:57:54,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:54,981 INFO L82 PathProgramCache]: Analyzing trace with hash 564914831, now seen corresponding path program 1 times [2020-11-28 02:57:54,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:54,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65625658] [2020-11-28 02:57:54,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-11-28 02:57:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-28 02:57:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 02:57:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-28 02:57:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-28 02:57:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 02:57:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-11-28 02:57:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-28 02:57:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 02:57:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,341 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2020-11-28 02:57:55,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65625658] [2020-11-28 02:57:55,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:55,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 02:57:55,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968176389] [2020-11-28 02:57:55,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 02:57:55,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:55,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 02:57:55,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-28 02:57:55,345 INFO L87 Difference]: Start difference. First operand 78 states and 92 transitions. Second operand 8 states. [2020-11-28 02:57:55,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:55,455 INFO L93 Difference]: Finished difference Result 78 states and 92 transitions. [2020-11-28 02:57:55,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 02:57:55,456 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2020-11-28 02:57:55,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:55,459 INFO L225 Difference]: With dead ends: 78 [2020-11-28 02:57:55,459 INFO L226 Difference]: Without dead ends: 76 [2020-11-28 02:57:55,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-28 02:57:55,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-28 02:57:55,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-11-28 02:57:55,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-28 02:57:55,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2020-11-28 02:57:55,470 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 102 [2020-11-28 02:57:55,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:55,471 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2020-11-28 02:57:55,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 02:57:55,471 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2020-11-28 02:57:55,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-28 02:57:55,473 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:55,473 INFO L422 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:55,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 02:57:55,474 INFO L429 AbstractCegarLoop]: === Iteration 9 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:57:55,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:55,475 INFO L82 PathProgramCache]: Analyzing trace with hash -319407487, now seen corresponding path program 1 times [2020-11-28 02:57:55,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:55,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336774635] [2020-11-28 02:57:55,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-11-28 02:57:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-28 02:57:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 02:57:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-11-28 02:57:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-28 02:57:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 02:57:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,665 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-11-28 02:57:55,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336774635] [2020-11-28 02:57:55,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:55,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 02:57:55,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134369435] [2020-11-28 02:57:55,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 02:57:55,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:55,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 02:57:55,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-28 02:57:55,668 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand 8 states. [2020-11-28 02:57:55,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:55,760 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2020-11-28 02:57:55,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 02:57:55,761 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-11-28 02:57:55,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:55,762 INFO L225 Difference]: With dead ends: 76 [2020-11-28 02:57:55,762 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 02:57:55,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-28 02:57:55,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 02:57:55,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 02:57:55,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 02:57:55,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 02:57:55,764 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2020-11-28 02:57:55,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:55,765 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:55,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 02:57:55,765 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:57:55,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 02:57:55,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 02:57:55,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 02:57:56,174 INFO L274 CegarLoopResult]: For program point fFINAL(lines 11 15) no Hoare annotation was computed. [2020-11-28 02:57:56,174 INFO L270 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (and (or (not (<= |f_#in~x| 2147483645)) (and (<= f_~x 2147483645) (<= 1 f_~x) (<= |f_#in~x| f_~x))) (not (<= (+ |f_#in~x| 1) 0))) [2020-11-28 02:57:56,174 INFO L274 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2020-11-28 02:57:56,174 INFO L274 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-11-28 02:57:56,174 INFO L274 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-11-28 02:57:56,175 INFO L274 CegarLoopResult]: For program point L14-3(line 14) no Hoare annotation was computed. [2020-11-28 02:57:56,175 INFO L270 CegarLoopResult]: At program point L14-4(line 14) the Hoare annotation is: (and (not (<= (+ |f_#in~x| 1) 0)) (or (and (<= f_~x 2147483645) (<= |f_#t~ret0| 0) (<= 1 f_~x) (<= 0 |f_#t~ret0|) (<= |f_#in~x| f_~x)) (not (<= |f_#in~x| 2147483645)))) [2020-11-28 02:57:56,175 INFO L274 CegarLoopResult]: For program point L14-5(line 14) no Hoare annotation was computed. [2020-11-28 02:57:56,175 INFO L274 CegarLoopResult]: For program point fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2020-11-28 02:57:56,175 INFO L274 CegarLoopResult]: For program point fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2020-11-28 02:57:56,175 INFO L274 CegarLoopResult]: For program point L14-6(line 14) no Hoare annotation was computed. [2020-11-28 02:57:56,175 INFO L274 CegarLoopResult]: For program point fEXIT(lines 11 15) no Hoare annotation was computed. [2020-11-28 02:57:56,176 INFO L274 CegarLoopResult]: For program point L14-7(line 14) no Hoare annotation was computed. [2020-11-28 02:57:56,176 INFO L277 CegarLoopResult]: At program point fENTRY(lines 11 15) the Hoare annotation is: true [2020-11-28 02:57:56,176 INFO L274 CegarLoopResult]: For program point fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2020-11-28 02:57:56,176 INFO L274 CegarLoopResult]: For program point fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2020-11-28 02:57:56,178 INFO L274 CegarLoopResult]: For program point gFINAL(lines 17 21) no Hoare annotation was computed. [2020-11-28 02:57:56,178 INFO L274 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-11-28 02:57:56,178 INFO L274 CegarLoopResult]: For program point L19(lines 19 20) no Hoare annotation was computed. [2020-11-28 02:57:56,179 INFO L274 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-11-28 02:57:56,179 INFO L270 CegarLoopResult]: At program point L20-2(line 20) the Hoare annotation is: (and (or (not (<= |g_#in~x| 2147483645)) (<= 1 g_~x)) (or (= |g_#in~x| g_~x) (not (<= |g_#in~x| 2147483647)))) [2020-11-28 02:57:56,179 INFO L274 CegarLoopResult]: For program point L20-3(line 20) no Hoare annotation was computed. [2020-11-28 02:57:56,180 INFO L274 CegarLoopResult]: For program point L20-4(line 20) no Hoare annotation was computed. [2020-11-28 02:57:56,180 INFO L274 CegarLoopResult]: For program point L20-5(line 20) no Hoare annotation was computed. [2020-11-28 02:57:56,180 INFO L270 CegarLoopResult]: At program point L20-6(line 20) the Hoare annotation is: (or (and (<= 1 g_~x) (<= 0 |g_#t~ret2|) (= |g_#in~x| g_~x) (<= |g_#t~ret2| 0)) (not (<= |g_#in~x| 2147483647))) [2020-11-28 02:57:56,180 INFO L274 CegarLoopResult]: For program point L20-7(line 20) no Hoare annotation was computed. [2020-11-28 02:57:56,181 INFO L274 CegarLoopResult]: For program point L20-8(line 20) no Hoare annotation was computed. [2020-11-28 02:57:56,181 INFO L274 CegarLoopResult]: For program point L20-9(line 20) no Hoare annotation was computed. [2020-11-28 02:57:56,181 INFO L274 CegarLoopResult]: For program point gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-11-28 02:57:56,181 INFO L274 CegarLoopResult]: For program point gEXIT(lines 17 21) no Hoare annotation was computed. [2020-11-28 02:57:56,181 INFO L274 CegarLoopResult]: For program point gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-11-28 02:57:56,182 INFO L277 CegarLoopResult]: At program point gENTRY(lines 17 21) the Hoare annotation is: true [2020-11-28 02:57:56,182 INFO L274 CegarLoopResult]: For program point gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-11-28 02:57:56,182 INFO L274 CegarLoopResult]: For program point gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-11-28 02:57:56,182 INFO L274 CegarLoopResult]: For program point gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-11-28 02:57:56,182 INFO L274 CegarLoopResult]: For program point gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-11-28 02:57:56,182 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 02:57:56,183 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 02:57:56,183 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 02:57:56,183 INFO L270 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2020-11-28 02:57:56,183 INFO L274 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-11-28 02:57:56,183 INFO L274 CegarLoopResult]: For program point L24(lines 24 27) no Hoare annotation was computed. [2020-11-28 02:57:56,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:57:56 BoogieIcfgContainer [2020-11-28 02:57:56,191 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:57:56,191 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:57:56,191 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:57:56,192 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:57:56,192 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:52" (3/4) ... [2020-11-28 02:57:56,196 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 02:57:56,203 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2020-11-28 02:57:56,204 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2020-11-28 02:57:56,213 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 02:57:56,213 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 02:57:56,286 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_75ee6221-4209-4c4e-aaac-5cb7930aefe4/bin/uautomizer/witness.graphml [2020-11-28 02:57:56,286 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:57:56,288 INFO L168 Benchmark]: Toolchain (without parser) took 4781.34 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 66.3 MB in the beginning and 43.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 42.3 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,289 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 73.4 MB. Free memory was 31.9 MB in the beginning and 31.9 MB in the end (delta: 23.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:56,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.96 ms. Allocated memory is still 98.6 MB. Free memory was 66.1 MB in the beginning and 76.3 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.35 ms. Allocated memory is still 98.6 MB. Free memory was 76.3 MB in the beginning and 74.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:56,294 INFO L168 Benchmark]: Boogie Preprocessor took 38.23 ms. Allocated memory is still 98.6 MB. Free memory was 74.9 MB in the beginning and 74.5 MB in the end (delta: 452.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:56,294 INFO L168 Benchmark]: RCFGBuilder took 415.82 ms. Allocated memory is still 98.6 MB. Free memory was 74.1 MB in the beginning and 62.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,297 INFO L168 Benchmark]: TraceAbstraction took 3903.68 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 61.9 MB in the beginning and 47.0 MB in the end (delta: 14.9 MB). Peak memory consumption was 38.7 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,298 INFO L168 Benchmark]: Witness Printer took 95.12 ms. Allocated memory is still 119.5 MB. Free memory was 47.0 MB in the beginning and 43.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 73.4 MB. Free memory was 31.9 MB in the beginning and 31.9 MB in the end (delta: 23.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 274.96 ms. Allocated memory is still 98.6 MB. Free memory was 66.1 MB in the beginning and 76.3 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.35 ms. Allocated memory is still 98.6 MB. Free memory was 76.3 MB in the beginning and 74.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.23 ms. Allocated memory is still 98.6 MB. Free memory was 74.9 MB in the beginning and 74.5 MB in the end (delta: 452.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 415.82 ms. Allocated memory is still 98.6 MB. Free memory was 74.1 MB in the beginning and 62.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3903.68 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 61.9 MB in the beginning and 47.0 MB in the end (delta: 14.9 MB). Peak memory consumption was 38.7 MB. Max. memory is 16.1 GB. * Witness Printer took 95.12 ms. Allocated memory is still 119.5 MB. Free memory was 47.0 MB in the beginning and 43.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 9, TraceHistogramMax: 9, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 279 SDtfs, 216 SDslu, 818 SDs, 0 SdLazy, 458 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 43 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 64 PreInvPairs, 76 NumberOfFragments, 90 HoareAnnotationTreeSize, 64 FomulaSimplifications, 69 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 67 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 309 ConstructedInterpolants, 0 QuantifiedInterpolants, 34287 SizeOfPredicates, 3 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 322/326 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...