./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg --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 c8c2842840d9df2fd19d5532fbc3700c74bea362cad75e31db6c666eb38ff4df ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:53:35,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:53:35,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:53:35,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:53:35,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:53:35,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:53:35,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:53:35,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:53:35,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:53:35,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:53:35,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:53:35,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:53:35,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:53:35,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:53:35,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:53:35,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:53:35,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:53:35,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:53:35,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:53:35,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:53:35,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:53:35,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:53:35,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:53:35,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:53:35,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:53:35,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:53:35,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:53:35,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:53:35,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:53:36,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:53:36,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:53:36,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:53:36,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:53:36,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:53:36,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:53:36,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:53:36,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:53:36,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:53:36,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:53:36,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:53:36,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:53:36,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-28 08:53:36,046 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:53:36,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:53:36,047 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:53:36,047 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:53:36,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:53:36,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:53:36,048 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:53:36,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:53:36,049 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:53:36,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:53:36,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:53:36,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:53:36,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:53:36,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:53:36,050 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-28 08:53:36,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:53:36,050 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:53:36,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:53:36,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:53:36,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:53:36,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:53:36,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:53:36,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:53:36,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:53:36,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:53:36,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:53:36,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:53:36,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:53:36,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:53:36,053 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_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8c2842840d9df2fd19d5532fbc3700c74bea362cad75e31db6c666eb38ff4df [2021-10-28 08:53:36,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:53:36,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:53:36,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:53:36,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:53:36,448 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:53:36,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2021-10-28 08:53:36,523 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/data/36c43b72d/6209b9b01a284502b0ad7e4bb8a7aef8/FLAG6b288d37e [2021-10-28 08:53:37,055 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:53:37,057 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2021-10-28 08:53:37,072 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/data/36c43b72d/6209b9b01a284502b0ad7e4bb8a7aef8/FLAG6b288d37e [2021-10-28 08:53:37,412 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/data/36c43b72d/6209b9b01a284502b0ad7e4bb8a7aef8 [2021-10-28 08:53:37,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:53:37,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:53:37,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:53:37,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:53:37,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:53:37,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:53:37" (1/1) ... [2021-10-28 08:53:37,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@376a301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:37, skipping insertion in model container [2021-10-28 08:53:37,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:53:37" (1/1) ... [2021-10-28 08:53:37,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:53:37,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:53:37,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:53:37,689 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:53:37,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:53:37,727 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:53:37,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:37 WrapperNode [2021-10-28 08:53:37,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:53:37,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:53:37,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:53:37,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:53:37,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:37" (1/1) ... [2021-10-28 08:53:37,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:37" (1/1) ... [2021-10-28 08:53:37,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:53:37,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:53:37,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:53:37,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:53:37,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:37" (1/1) ... [2021-10-28 08:53:37,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:37" (1/1) ... [2021-10-28 08:53:37,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:37" (1/1) ... [2021-10-28 08:53:37,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:37" (1/1) ... [2021-10-28 08:53:37,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:37" (1/1) ... [2021-10-28 08:53:37,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:37" (1/1) ... [2021-10-28 08:53:37,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:37" (1/1) ... [2021-10-28 08:53:37,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:53:37,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:53:37,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:53:37,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:53:37,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:37" (1/1) ... [2021-10-28 08:53:37,789 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:53:37,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:37,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:37,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:53:37,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:53:37,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:53:38,027 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:53:38,027 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 08:53:38,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:53:38 BoogieIcfgContainer [2021-10-28 08:53:38,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:53:38,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:53:38,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:53:38,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:53:38,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:53:37" (1/3) ... [2021-10-28 08:53:38,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a33f77e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:53:38, skipping insertion in model container [2021-10-28 08:53:38,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:37" (2/3) ... [2021-10-28 08:53:38,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a33f77e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:53:38, skipping insertion in model container [2021-10-28 08:53:38,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:53:38" (3/3) ... [2021-10-28 08:53:38,041 INFO L111 eAbstractionObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1-modified.c [2021-10-28 08:53:38,048 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:53:38,049 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-28 08:53:38,108 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:53:38,116 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:53:38,117 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-28 08:53:38,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:38,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-28 08:53:38,142 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:53:38,142 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-28 08:53:38,143 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-28 08:53:38,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:38,151 INFO L85 PathProgramCache]: Analyzing trace with hash 29684842, now seen corresponding path program 1 times [2021-10-28 08:53:38,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:38,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968789064] [2021-10-28 08:53:38,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:38,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:38,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:38,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:38,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968789064] [2021-10-28 08:53:38,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968789064] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:53:38,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:53:38,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:53:38,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587344679] [2021-10-28 08:53:38,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:53:38,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:53:38,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:53:38,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:53:38,370 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:38,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:53:38,476 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2021-10-28 08:53:38,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:53:38,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-28 08:53:38,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:53:38,506 INFO L225 Difference]: With dead ends: 28 [2021-10-28 08:53:38,506 INFO L226 Difference]: Without dead ends: 14 [2021-10-28 08:53:38,510 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:53:38,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-28 08:53:38,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-28 08:53:38,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:38,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-10-28 08:53:38,547 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2021-10-28 08:53:38,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:53:38,548 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-10-28 08:53:38,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:38,549 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-10-28 08:53:38,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-28 08:53:38,550 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:53:38,550 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-28 08:53:38,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:53:38,551 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-28 08:53:38,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:38,552 INFO L85 PathProgramCache]: Analyzing trace with hash 29685034, now seen corresponding path program 1 times [2021-10-28 08:53:38,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:38,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652361963] [2021-10-28 08:53:38,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:38,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:38,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:38,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:38,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652361963] [2021-10-28 08:53:38,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652361963] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:53:38,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:53:38,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:53:38,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023002073] [2021-10-28 08:53:38,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:53:38,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:53:38,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:53:38,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:53:38,638 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:38,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:53:38,752 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2021-10-28 08:53:38,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:53:38,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-28 08:53:38,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:53:38,754 INFO L225 Difference]: With dead ends: 16 [2021-10-28 08:53:38,755 INFO L226 Difference]: Without dead ends: 14 [2021-10-28 08:53:38,756 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:53:38,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-28 08:53:38,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-28 08:53:38,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:38,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-10-28 08:53:38,761 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2021-10-28 08:53:38,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:53:38,761 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-10-28 08:53:38,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:38,762 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-10-28 08:53:38,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 08:53:38,763 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:53:38,763 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-28 08:53:38,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:53:38,764 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-28 08:53:38,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:38,781 INFO L85 PathProgramCache]: Analyzing trace with hash -199749339, now seen corresponding path program 1 times [2021-10-28 08:53:38,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:38,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612451274] [2021-10-28 08:53:38,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:38,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:38,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:38,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:38,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612451274] [2021-10-28 08:53:38,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612451274] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:53:38,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474666920] [2021-10-28 08:53:38,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:38,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:53:38,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:38,901 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:53:38,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 08:53:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:38,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:53:38,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:53:39,134 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:39,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474666920] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:53:39,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:53:39,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 08:53:39,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16953447] [2021-10-28 08:53:39,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:53:39,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:53:39,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:53:39,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:53:39,139 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:39,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:53:39,210 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2021-10-28 08:53:39,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:53:39,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-28 08:53:39,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:53:39,213 INFO L225 Difference]: With dead ends: 32 [2021-10-28 08:53:39,213 INFO L226 Difference]: Without dead ends: 31 [2021-10-28 08:53:39,214 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:53:39,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-28 08:53:39,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 17. [2021-10-28 08:53:39,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:39,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-10-28 08:53:39,220 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 9 [2021-10-28 08:53:39,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:53:39,220 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-10-28 08:53:39,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:39,221 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2021-10-28 08:53:39,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 08:53:39,222 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:53:39,222 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:39,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:39,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:53:39,438 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-28 08:53:39,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:39,439 INFO L85 PathProgramCache]: Analyzing trace with hash -199749147, now seen corresponding path program 1 times [2021-10-28 08:53:39,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:39,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92484391] [2021-10-28 08:53:39,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:39,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:39,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:39,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:39,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92484391] [2021-10-28 08:53:39,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92484391] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:53:39,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564937232] [2021-10-28 08:53:39,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:39,525 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:53:39,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:39,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:53:39,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 08:53:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:39,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:53:39,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:53:39,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:39,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564937232] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:53:39,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:53:39,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-28 08:53:39,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580771765] [2021-10-28 08:53:39,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:53:39,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:53:39,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:53:39,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:53:39,752 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:40,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:53:40,005 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2021-10-28 08:53:40,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:53:40,007 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-28 08:53:40,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:53:40,015 INFO L225 Difference]: With dead ends: 48 [2021-10-28 08:53:40,015 INFO L226 Difference]: Without dead ends: 47 [2021-10-28 08:53:40,018 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-10-28 08:53:40,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-28 08:53:40,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 31. [2021-10-28 08:53:40,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2021-10-28 08:53:40,032 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 9 [2021-10-28 08:53:40,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:53:40,033 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-28 08:53:40,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2021-10-28 08:53:40,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 08:53:40,034 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:53:40,034 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:40,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:40,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:53:40,255 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-28 08:53:40,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:40,256 INFO L85 PathProgramCache]: Analyzing trace with hash -22254561, now seen corresponding path program 1 times [2021-10-28 08:53:40,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:40,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716057962] [2021-10-28 08:53:40,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:40,257 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:40,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:40,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:40,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716057962] [2021-10-28 08:53:40,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716057962] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:53:40,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028392504] [2021-10-28 08:53:40,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:40,339 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:53:40,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:40,345 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:53:40,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 08:53:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:40,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:53:40,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:53:40,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:40,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028392504] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:53:40,628 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:53:40,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2021-10-28 08:53:40,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126121780] [2021-10-28 08:53:40,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:53:40,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:53:40,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:53:40,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:53:40,631 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:40,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:53:40,753 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2021-10-28 08:53:40,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 08:53:40,754 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-28 08:53:40,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:53:40,756 INFO L225 Difference]: With dead ends: 35 [2021-10-28 08:53:40,758 INFO L226 Difference]: Without dead ends: 34 [2021-10-28 08:53:40,759 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:53:40,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-28 08:53:40,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2021-10-28 08:53:40,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:40,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-10-28 08:53:40,774 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 9 [2021-10-28 08:53:40,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:53:40,774 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-28 08:53:40,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:40,774 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2021-10-28 08:53:40,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 08:53:40,775 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:53:40,775 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-28 08:53:40,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:40,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:53:40,976 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-28 08:53:40,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:40,977 INFO L85 PathProgramCache]: Analyzing trace with hash -22254369, now seen corresponding path program 1 times [2021-10-28 08:53:40,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:40,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662888632] [2021-10-28 08:53:40,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:40,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:41,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:41,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:41,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662888632] [2021-10-28 08:53:41,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662888632] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:53:41,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034507102] [2021-10-28 08:53:41,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:41,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:53:41,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:41,042 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:53:41,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 08:53:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:41,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:53:41,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:53:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:41,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034507102] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:53:41,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:53:41,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 08:53:41,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724719198] [2021-10-28 08:53:41,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:53:41,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:53:41,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:53:41,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:53:41,255 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:41,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:53:41,319 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2021-10-28 08:53:41,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:53:41,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-28 08:53:41,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:53:41,323 INFO L225 Difference]: With dead ends: 43 [2021-10-28 08:53:41,323 INFO L226 Difference]: Without dead ends: 42 [2021-10-28 08:53:41,324 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:53:41,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-28 08:53:41,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 20. [2021-10-28 08:53:41,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:41,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2021-10-28 08:53:41,338 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 9 [2021-10-28 08:53:41,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:53:41,339 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-10-28 08:53:41,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:41,339 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2021-10-28 08:53:41,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 08:53:41,341 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:53:41,341 INFO L513 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-28 08:53:41,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:41,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-28 08:53:41,554 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-28 08:53:41,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:41,554 INFO L85 PathProgramCache]: Analyzing trace with hash -573512235, now seen corresponding path program 1 times [2021-10-28 08:53:41,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:41,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107846938] [2021-10-28 08:53:41,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:41,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:41,651 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:41,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:41,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107846938] [2021-10-28 08:53:41,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107846938] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:53:41,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042353953] [2021-10-28 08:53:41,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:41,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:53:41,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:41,655 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:53:41,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 08:53:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:41,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:53:41,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:53:41,912 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:41,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042353953] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:53:41,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:53:41,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-10-28 08:53:41,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952820161] [2021-10-28 08:53:41,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:53:41,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:53:41,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:53:41,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:53:41,915 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:42,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:53:42,184 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2021-10-28 08:53:42,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 08:53:42,185 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-28 08:53:42,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:53:42,186 INFO L225 Difference]: With dead ends: 35 [2021-10-28 08:53:42,186 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 08:53:42,187 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2021-10-28 08:53:42,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 08:53:42,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 08:53:42,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:42,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 08:53:42,188 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-10-28 08:53:42,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:53:42,188 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:53:42,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:42,188 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:53:42,188 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 08:53:42,191 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:53:42,192 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:53:42,192 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:53:42,192 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:53:42,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:53:42,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-28 08:53:42,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 08:53:42,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:53:42,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:53:42,587 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-10-28 08:53:42,588 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 08:53:42,588 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-28 08:53:42,589 INFO L853 garLoopResultBuilder]: At program point L29(lines 16 30) the Hoare annotation is: (<= ULTIMATE.start_main_~y1~0 2147483647) [2021-10-28 08:53:42,592 INFO L857 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-10-28 08:53:42,592 INFO L857 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-10-28 08:53:42,593 INFO L857 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-10-28 08:53:42,593 INFO L857 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-10-28 08:53:42,593 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-10-28 08:53:42,593 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-28 08:53:42,594 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 08:53:42,595 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 08:53:42,595 INFO L857 garLoopResultBuilder]: For program point L22(lines 22 26) no Hoare annotation was computed. [2021-10-28 08:53:42,603 INFO L857 garLoopResultBuilder]: For program point L20(lines 20 28) no Hoare annotation was computed. [2021-10-28 08:53:42,604 INFO L853 garLoopResultBuilder]: At program point L22-2(lines 21 27) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~y2~0) (<= 0 ULTIMATE.start_main_~y1~0) (<= ULTIMATE.start_main_~y2~0 2147483647) (<= ULTIMATE.start_main_~y1~0 2147483647)) [2021-10-28 08:53:42,604 INFO L857 garLoopResultBuilder]: For program point L20-1(lines 20 28) no Hoare annotation was computed. [2021-10-28 08:53:42,609 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:42,612 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:53:42,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:53:42 BoogieIcfgContainer [2021-10-28 08:53:42,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:53:42,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:53:42,629 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:53:42,629 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:53:42,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:53:38" (3/4) ... [2021-10-28 08:53:42,633 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:53:42,645 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-28 08:53:42,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 08:53:42,686 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:53:42,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:53:42,688 INFO L168 Benchmark]: Toolchain (without parser) took 5270.24 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.8 MB in the beginning and 46.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:42,690 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 66.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:53:42,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.86 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.5 MB in the beginning and 83.1 MB in the end (delta: -32.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:42,691 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.78 ms. Allocated memory is still 104.9 MB. Free memory was 83.1 MB in the beginning and 81.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:53:42,691 INFO L168 Benchmark]: Boogie Preprocessor took 19.38 ms. Allocated memory is still 104.9 MB. Free memory was 81.7 MB in the beginning and 80.9 MB in the end (delta: 871.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:42,692 INFO L168 Benchmark]: RCFGBuilder took 249.75 ms. Allocated memory is still 104.9 MB. Free memory was 80.9 MB in the beginning and 72.7 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:42,692 INFO L168 Benchmark]: TraceAbstraction took 4595.75 ms. Allocated memory is still 104.9 MB. Free memory was 72.3 MB in the beginning and 48.3 MB in the end (delta: 23.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:42,693 INFO L168 Benchmark]: Witness Printer took 58.27 ms. Allocated memory is still 104.9 MB. Free memory was 48.3 MB in the beginning and 46.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:42,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 66.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 306.86 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.5 MB in the beginning and 83.1 MB in the end (delta: -32.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.78 ms. Allocated memory is still 104.9 MB. Free memory was 83.1 MB in the beginning and 81.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.38 ms. Allocated memory is still 104.9 MB. Free memory was 81.7 MB in the beginning and 80.9 MB in the end (delta: 871.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 249.75 ms. Allocated memory is still 104.9 MB. Free memory was 80.9 MB in the beginning and 72.7 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4595.75 ms. Allocated memory is still 104.9 MB. Free memory was 72.3 MB in the beginning and 48.3 MB in the end (delta: 23.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. * Witness Printer took 58.27 ms. Allocated memory is still 104.9 MB. Free memory was 48.3 MB in the beginning and 46.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 157 SDslu, 3 SDs, 0 SdLazy, 372 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=4, InterpolantAutomatonStates: 56, 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, 64 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 9 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 154 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 269 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 613 SizeOfPredicates, 0 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 12/50 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: y1 <= 2147483647 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((0 <= y2 && 0 <= y1) && y2 <= 2147483647) && y1 <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-10-28 08:53:42,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfd8dbc-cbda-4c37-bb8b-f59eae0dfd59/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...