./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test25-2.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_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test25-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/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 095737d8fbee9027efb54bd1ca6a270d14b06184 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:06:44,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:06:44,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:06:44,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:06:44,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:06:44,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:06:44,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:06:44,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:06:44,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:06:44,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:06:44,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:06:44,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:06:44,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:06:44,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:06:44,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:06:44,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:06:44,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:06:44,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:06:44,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:06:44,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:06:44,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:06:44,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:06:44,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:06:44,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:06:44,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:06:44,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:06:44,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:06:44,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:06:44,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:06:44,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:06:44,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:06:44,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:06:44,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:06:44,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:06:44,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:06:44,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:06:44,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:06:44,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:06:44,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:06:44,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:06:44,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:06:44,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:06:44,693 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:06:44,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:06:44,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:06:44,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:06:44,695 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:06:44,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:06:44,696 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:06:44,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:06:44,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:06:44,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:06:44,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:06:44,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:06:44,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:06:44,699 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:06:44,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:06:44,700 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:06:44,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:06:44,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:06:44,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:06:44,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:06:44,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:06:44,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:06:44,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:06:44,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:06:44,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:06:44,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:06:44,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:06:44,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:06:44,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:06:44,705 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_c2149011-9509-4861-a832-53d919805185/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 095737d8fbee9027efb54bd1ca6a270d14b06184 [2020-11-28 03:06:44,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:06:45,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:06:45,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:06:45,005 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:06:45,007 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:06:45,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test25-2.c [2020-11-28 03:06:45,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/data/3596f6c4b/916f8e136a7345989731a12cbc53dade/FLAGf3240a866 [2020-11-28 03:06:45,579 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:06:45,580 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/sv-benchmarks/c/ldv-regression/test25-2.c [2020-11-28 03:06:45,585 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/data/3596f6c4b/916f8e136a7345989731a12cbc53dade/FLAGf3240a866 [2020-11-28 03:06:46,065 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/data/3596f6c4b/916f8e136a7345989731a12cbc53dade [2020-11-28 03:06:46,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:06:46,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:06:46,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:06:46,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:06:46,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:06:46,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:46" (1/1) ... [2020-11-28 03:06:46,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37865133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:46, skipping insertion in model container [2020-11-28 03:06:46,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:46" (1/1) ... [2020-11-28 03:06:46,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:06:46,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:06:46,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:06:46,322 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:06:46,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:06:46,354 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:06:46,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:46 WrapperNode [2020-11-28 03:06:46,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:06:46,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:06:46,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:06:46,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:06:46,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:46" (1/1) ... [2020-11-28 03:06:46,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:46" (1/1) ... [2020-11-28 03:06:46,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:06:46,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:06:46,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:06:46,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:06:46,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:46" (1/1) ... [2020-11-28 03:06:46,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:46" (1/1) ... [2020-11-28 03:06:46,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:46" (1/1) ... [2020-11-28 03:06:46,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:46" (1/1) ... [2020-11-28 03:06:46,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:46" (1/1) ... [2020-11-28 03:06:46,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:46" (1/1) ... [2020-11-28 03:06:46,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:46" (1/1) ... [2020-11-28 03:06:46,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:06:46,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:06:46,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:06:46,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:06:46,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/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 03:06:46,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:06:46,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:06:46,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 03:06:46,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:06:46,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:06:46,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:06:46,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:06:46,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:06:46,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:06:46,841 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:06:46,841 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 03:06:46,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:46 BoogieIcfgContainer [2020-11-28 03:06:46,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:06:46,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:06:46,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:06:46,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:06:46,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:06:46" (1/3) ... [2020-11-28 03:06:46,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb5a867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:46, skipping insertion in model container [2020-11-28 03:06:46,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:46" (2/3) ... [2020-11-28 03:06:46,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb5a867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:46, skipping insertion in model container [2020-11-28 03:06:46,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:46" (3/3) ... [2020-11-28 03:06:46,854 INFO L111 eAbstractionObserver]: Analyzing ICFG test25-2.c [2020-11-28 03:06:46,866 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:06:46,874 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:06:46,885 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:06:46,912 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:06:46,912 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:06:46,912 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:06:46,912 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:06:46,912 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:06:46,912 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:06:46,913 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:06:46,913 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:06:46,922 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-11-28 03:06:46,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:06:46,926 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:06:46,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:06:46,927 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:06:46,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:46,933 INFO L82 PathProgramCache]: Analyzing trace with hash -631347226, now seen corresponding path program 1 times [2020-11-28 03:06:46,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:06:46,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078907542] [2020-11-28 03:06:46,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:06:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:47,100 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 03:06:47,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078907542] [2020-11-28 03:06:47,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:06:47,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:06:47,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016871552] [2020-11-28 03:06:47,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:06:47,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:06:47,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:06:47,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:06:47,120 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-11-28 03:06:47,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:06:47,141 INFO L93 Difference]: Finished difference Result 31 states and 41 transitions. [2020-11-28 03:06:47,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:06:47,142 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-28 03:06:47,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:06:47,161 INFO L225 Difference]: With dead ends: 31 [2020-11-28 03:06:47,162 INFO L226 Difference]: Without dead ends: 13 [2020-11-28 03:06:47,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:06:47,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-28 03:06:47,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-28 03:06:47,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 03:06:47,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2020-11-28 03:06:47,199 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2020-11-28 03:06:47,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:06:47,200 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2020-11-28 03:06:47,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:06:47,200 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-11-28 03:06:47,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:06:47,201 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:06:47,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:06:47,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:06:47,201 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:06:47,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:47,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1697064536, now seen corresponding path program 1 times [2020-11-28 03:06:47,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:06:47,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003375298] [2020-11-28 03:06:47,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:06:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:47,294 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 03:06:47,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003375298] [2020-11-28 03:06:47,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:06:47,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:06:47,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869067723] [2020-11-28 03:06:47,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:06:47,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:06:47,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:06:47,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:06:47,298 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 3 states. [2020-11-28 03:06:47,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:06:47,333 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2020-11-28 03:06:47,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:06:47,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-28 03:06:47,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:06:47,334 INFO L225 Difference]: With dead ends: 24 [2020-11-28 03:06:47,334 INFO L226 Difference]: Without dead ends: 15 [2020-11-28 03:06:47,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:06:47,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-28 03:06:47,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2020-11-28 03:06:47,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-28 03:06:47,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2020-11-28 03:06:47,339 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2020-11-28 03:06:47,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:06:47,339 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2020-11-28 03:06:47,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:06:47,339 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-11-28 03:06:47,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:06:47,340 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:06:47,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:06:47,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:06:47,341 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:06:47,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:47,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1434190826, now seen corresponding path program 1 times [2020-11-28 03:06:47,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:06:47,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035297] [2020-11-28 03:06:47,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:06:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:47,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:06:47,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035297] [2020-11-28 03:06:47,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287899965] [2020-11-28 03:06:47,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/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 03:06:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:47,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:06:47,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:06:47,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:06:47,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:06:47,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-11-28 03:06:47,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056515071] [2020-11-28 03:06:47,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:06:47,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:06:47,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:06:47,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:06:47,606 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 5 states. [2020-11-28 03:06:47,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:06:47,670 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2020-11-28 03:06:47,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:06:47,672 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-28 03:06:47,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:06:47,672 INFO L225 Difference]: With dead ends: 26 [2020-11-28 03:06:47,672 INFO L226 Difference]: Without dead ends: 17 [2020-11-28 03:06:47,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:06:47,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-28 03:06:47,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-11-28 03:06:47,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 03:06:47,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-11-28 03:06:47,679 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 13 [2020-11-28 03:06:47,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:06:47,679 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-11-28 03:06:47,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:06:47,679 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-28 03:06:47,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:06:47,680 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:06:47,680 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:06:47,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-28 03:06:47,881 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:06:47,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:47,882 INFO L82 PathProgramCache]: Analyzing trace with hash 201480788, now seen corresponding path program 2 times [2020-11-28 03:06:47,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:06:47,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006579287] [2020-11-28 03:06:47,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:06:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:48,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:06:48,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006579287] [2020-11-28 03:06:48,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349733390] [2020-11-28 03:06:48,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:06:48,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-28 03:06:48,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:06:48,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-28 03:06:48,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:06:48,195 INFO L350 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2020-11-28 03:06:48,195 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 12 [2020-11-28 03:06:48,198 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:06:48,200 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:06:48,201 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:06:48,201 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:34, output treesize:5 [2020-11-28 03:06:48,219 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 03:06:48,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:06:48,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2020-11-28 03:06:48,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624162468] [2020-11-28 03:06:48,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:06:48,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:06:48,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:06:48,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:06:48,221 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 5 states. [2020-11-28 03:06:48,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:06:48,331 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2020-11-28 03:06:48,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:06:48,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-28 03:06:48,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:06:48,333 INFO L225 Difference]: With dead ends: 23 [2020-11-28 03:06:48,333 INFO L226 Difference]: Without dead ends: 18 [2020-11-28 03:06:48,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:06:48,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-28 03:06:48,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-28 03:06:48,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-28 03:06:48,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-11-28 03:06:48,337 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 15 [2020-11-28 03:06:48,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:06:48,338 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-11-28 03:06:48,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:06:48,338 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-11-28 03:06:48,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:06:48,339 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:06:48,339 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:06:48,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:06:48,552 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:06:48,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:48,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1859304665, now seen corresponding path program 1 times [2020-11-28 03:06:48,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:06:48,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88539547] [2020-11-28 03:06:48,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:06:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:48,694 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:06:48,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88539547] [2020-11-28 03:06:48,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525214637] [2020-11-28 03:06:48,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:06:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:48,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:06:48,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:06:48,798 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:06:48,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:06:48,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-11-28 03:06:48,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861995157] [2020-11-28 03:06:48,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:06:48,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:06:48,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:06:48,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:06:48,801 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 6 states. [2020-11-28 03:06:48,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:06:48,846 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-11-28 03:06:48,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:06:48,848 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-28 03:06:48,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:06:48,848 INFO L225 Difference]: With dead ends: 32 [2020-11-28 03:06:48,849 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 03:06:48,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:06:48,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 03:06:48,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-11-28 03:06:48,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-28 03:06:48,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-11-28 03:06:48,853 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 17 [2020-11-28 03:06:48,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:06:48,853 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-11-28 03:06:48,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:06:48,853 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-28 03:06:48,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:06:48,854 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:06:48,854 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:06:49,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:06:49,056 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:06:49,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:49,056 INFO L82 PathProgramCache]: Analyzing trace with hash 291228695, now seen corresponding path program 2 times [2020-11-28 03:06:49,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:06:49,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227725205] [2020-11-28 03:06:49,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:06:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:06:49,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227725205] [2020-11-28 03:06:49,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890570475] [2020-11-28 03:06:49,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:06:49,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-28 03:06:49,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:06:49,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:06:49,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:06:49,290 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:06:49,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:06:49,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-11-28 03:06:49,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437351769] [2020-11-28 03:06:49,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:06:49,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:06:49,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:06:49,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:06:49,292 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 7 states. [2020-11-28 03:06:49,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:06:49,340 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2020-11-28 03:06:49,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:06:49,342 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-28 03:06:49,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:06:49,343 INFO L225 Difference]: With dead ends: 34 [2020-11-28 03:06:49,343 INFO L226 Difference]: Without dead ends: 23 [2020-11-28 03:06:49,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:06:49,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-28 03:06:49,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2020-11-28 03:06:49,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 03:06:49,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-11-28 03:06:49,347 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 19 [2020-11-28 03:06:49,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:06:49,347 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-11-28 03:06:49,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:06:49,347 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-11-28 03:06:49,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:06:49,350 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:06:49,351 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:06:49,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:06:49,560 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:06:49,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:49,561 INFO L82 PathProgramCache]: Analyzing trace with hash 903742421, now seen corresponding path program 3 times [2020-11-28 03:06:49,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:06:49,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115457736] [2020-11-28 03:06:49,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:06:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:49,681 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:06:49,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115457736] [2020-11-28 03:06:49,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455227456] [2020-11-28 03:06:49,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:06:49,793 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-11-28 03:06:49,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:06:49,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 30 conjunts are in the unsatisfiable core [2020-11-28 03:06:49,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:06:49,818 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-28 03:06:49,818 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:06:49,835 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:06:49,850 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-11-28 03:06:49,850 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 03:06:49,867 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:06:49,870 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:06:49,870 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:43, output treesize:17 [2020-11-28 03:06:50,021 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 03:06:50,071 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-28 03:06:50,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:06:50,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2020-11-28 03:06:50,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286077155] [2020-11-28 03:06:50,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-28 03:06:50,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:06:50,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-28 03:06:50,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-11-28 03:06:50,073 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 14 states. [2020-11-28 03:06:50,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:06:50,435 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-11-28 03:06:50,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-28 03:06:50,435 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2020-11-28 03:06:50,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:06:50,436 INFO L225 Difference]: With dead ends: 34 [2020-11-28 03:06:50,436 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:06:50,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2020-11-28 03:06:50,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:06:50,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:06:50,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:06:50,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:06:50,437 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-28 03:06:50,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:06:50,437 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:06:50,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-28 03:06:50,437 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:06:50,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:06:50,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-28 03:06:50,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:06:50,695 INFO L270 CegarLoopResult]: At program point L19(lines 17 20) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#cont~0.base|) |ULTIMATE.start_main_~#cont~0.offset|)) (.cse1 (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#cont~0.base|) |ULTIMATE.start_main_~#cont~0.offset|) 4))) (and (<= 1 |ULTIMATE.start_check_#res|) (= ULTIMATE.start_main_~pa~0.base .cse0) (= .cse1 ULTIMATE.start_main_~pa~0.offset) (< ULTIMATE.start_main_~i~0 (+ (select (select |#memory_int| ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset) 1)) (<= (select (select |#memory_int| .cse0) .cse1) ULTIMATE.start_main_~i~0))) [2020-11-28 03:06:50,695 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:06:50,695 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:06:50,696 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:06:50,696 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:06:50,696 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:06:50,696 INFO L274 CegarLoopResult]: For program point L37(lines 37 45) no Hoare annotation was computed. [2020-11-28 03:06:50,696 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:06:50,696 INFO L274 CegarLoopResult]: For program point L29-2(lines 29 32) no Hoare annotation was computed. [2020-11-28 03:06:50,696 INFO L277 CegarLoopResult]: At program point L29-3(lines 29 32) the Hoare annotation is: true [2020-11-28 03:06:50,696 INFO L274 CegarLoopResult]: For program point L29-4(lines 23 52) no Hoare annotation was computed. [2020-11-28 03:06:50,696 INFO L274 CegarLoopResult]: For program point L42(lines 42 44) no Hoare annotation was computed. [2020-11-28 03:06:50,696 INFO L274 CegarLoopResult]: For program point L34(lines 34 46) no Hoare annotation was computed. [2020-11-28 03:06:50,696 INFO L277 CegarLoopResult]: At program point L51(lines 22 52) the Hoare annotation is: true [2020-11-28 03:06:50,696 INFO L270 CegarLoopResult]: At program point L43(lines 23 52) the Hoare annotation is: false [2020-11-28 03:06:50,697 INFO L274 CegarLoopResult]: For program point L39-1(lines 39 41) no Hoare annotation was computed. [2020-11-28 03:06:50,697 INFO L270 CegarLoopResult]: At program point L39-3(lines 39 41) the Hoare annotation is: (and (= ULTIMATE.start_main_~pa~0.base (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#cont~0.base|) |ULTIMATE.start_main_~#cont~0.offset|)) (= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#cont~0.base|) |ULTIMATE.start_main_~#cont~0.offset|) 4) ULTIMATE.start_main_~pa~0.offset) (< ULTIMATE.start_main_~i~0 (+ (select (select |#memory_int| ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset) 1))) [2020-11-28 03:06:50,697 INFO L274 CegarLoopResult]: For program point L39-4(lines 39 41) no Hoare annotation was computed. [2020-11-28 03:06:50,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-28 03:06:50,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-28 03:06:50,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-28 03:06:50,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-28 03:06:50,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:06:50,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:06:50,715 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,715 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,716 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-28 03:06:50,717 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-28 03:06:50,717 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-28 03:06:50,717 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-28 03:06:50,718 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,719 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,719 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:06:50,719 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:06:50,719 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,720 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,722 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-28 03:06:50,724 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-28 03:06:50,724 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,724 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:06:50,727 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-28 03:06:50,727 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-28 03:06:50,728 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,739 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,739 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:06:50,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:06:50 BoogieIcfgContainer [2020-11-28 03:06:50,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:06:50,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:06:50,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:06:50,743 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:06:50,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:46" (3/4) ... [2020-11-28 03:06:50,746 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:06:50,754 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 03:06:50,754 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 03:06:50,755 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:06:50,755 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:06:50,775 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 <= \result && pa == #memory_$Pointer$[cont][cont]) && #memory_$Pointer$[cont][cont] + 4 == pa) && i < unknown-#memory_int-unknown[pa][pa] + 1) && unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4] <= i [2020-11-28 03:06:50,795 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c2149011-9509-4861-a832-53d919805185/bin/uautomizer/witness.graphml [2020-11-28 03:06:50,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:06:50,796 INFO L168 Benchmark]: Toolchain (without parser) took 4727.14 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 72.4 MB in the beginning and 120.1 MB in the end (delta: -47.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:06:50,797 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 73.4 MB. Free memory was 31.2 MB in the beginning and 31.2 MB in the end (delta: 67.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:06:50,797 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.08 ms. Allocated memory is still 104.9 MB. Free memory was 72.2 MB in the beginning and 81.3 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:50,798 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.75 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 79.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:50,798 INFO L168 Benchmark]: Boogie Preprocessor took 24.78 ms. Allocated memory is still 104.9 MB. Free memory was 79.7 MB in the beginning and 78.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:50,799 INFO L168 Benchmark]: RCFGBuilder took 426.03 ms. Allocated memory is still 104.9 MB. Free memory was 78.2 MB in the beginning and 62.4 MB in the end (delta: 15.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:50,799 INFO L168 Benchmark]: TraceAbstraction took 3897.23 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 62.0 MB in the beginning and 123.2 MB in the end (delta: -61.2 MB). Peak memory consumption was 62.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:50,800 INFO L168 Benchmark]: Witness Printer took 52.94 ms. Allocated memory is still 146.8 MB. Free memory was 123.2 MB in the beginning and 120.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:50,803 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 73.4 MB. Free memory was 31.2 MB in the beginning and 31.2 MB in the end (delta: 67.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 285.08 ms. Allocated memory is still 104.9 MB. Free memory was 72.2 MB in the beginning and 81.3 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.75 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 79.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.78 ms. Allocated memory is still 104.9 MB. Free memory was 79.7 MB in the beginning and 78.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 426.03 ms. Allocated memory is still 104.9 MB. Free memory was 78.2 MB in the beginning and 62.4 MB in the end (delta: 15.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3897.23 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 62.0 MB in the beginning and 123.2 MB in the end (delta: -61.2 MB). Peak memory consumption was 62.7 MB. Max. memory is 16.1 GB. * Witness Printer took 52.94 ms. Allocated memory is still 146.8 MB. Free memory was 123.2 MB in the beginning and 120.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant [2020-11-28 03:06:50,811 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-28 03:06:50,811 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-28 03:06:50,811 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-28 03:06:50,811 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-28 03:06:50,812 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,812 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,812 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:06:50,812 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:06:50,812 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,812 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,813 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-28 03:06:50,813 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-28 03:06:50,813 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-28 03:06:50,813 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-28 03:06:50,814 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,814 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,814 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:06:50,814 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:06:50,814 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,814 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((1 <= \result && pa == #memory_$Pointer$[cont][cont]) && #memory_$Pointer$[cont][cont] + 4 == pa) && i < unknown-#memory_int-unknown[pa][pa] + 1) && unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4] <= i - InvariantResult [Line: 39]: Loop Invariant [2020-11-28 03:06:50,815 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-28 03:06:50,815 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-28 03:06:50,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:06:50,816 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-28 03:06:50,816 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-28 03:06:50,816 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,816 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-28 03:06:50,817 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (pa == #memory_$Pointer$[cont][cont] && #memory_$Pointer$[cont][cont] + 4 == pa) && i < unknown-#memory_int-unknown[pa][pa] + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 84 SDtfs, 23 SDslu, 148 SDs, 0 SdLazy, 183 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 4 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 14 NumberOfFragments, 75 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 45 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 191 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 179 ConstructedInterpolants, 1 QuantifiedInterpolants, 8003 SizeOfPredicates, 33 NumberOfNonLiveVariables, 569 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 31/80 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...