./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Benghazi.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2b89ce5b96ce55081609675201b2a9a116c2941a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:01:35,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:01:35,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:01:35,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:01:35,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:01:35,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:01:35,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:01:35,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:01:35,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:01:35,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:01:35,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:01:35,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:01:35,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:01:35,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:01:35,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:01:35,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:01:35,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:01:35,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:01:35,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:01:35,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:01:35,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:01:35,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:01:35,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:01:35,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:01:35,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:01:35,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:01:35,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:01:35,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:01:35,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:01:35,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:01:35,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:01:35,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:01:35,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:01:35,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:01:35,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:01:35,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:01:35,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:01:35,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:01:35,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:01:35,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:01:35,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:01:35,667 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-30 01:01:35,694 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:01:35,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:01:35,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:01:35,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:01:35,696 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:01:35,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:01:35,697 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:01:35,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:01:35,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:01:35,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:01:35,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:01:35,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:01:35,698 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:01:35,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:01:35,699 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:01:35,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:01:35,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:01:35,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:01:35,700 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:01:35,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:01:35,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:01:35,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:01:35,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:01:35,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:01:35,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:01:35,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:01:35,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:01:35,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:01:35,702 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b89ce5b96ce55081609675201b2a9a116c2941a [2020-11-30 01:01:35,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:01:35,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:01:35,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:01:35,965 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:01:35,966 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:01:35,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Benghazi.c [2020-11-30 01:01:36,055 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/data/ef7822c27/391b0b9f49ee444d8e26e4ead9097031/FLAGad362c5a5 [2020-11-30 01:01:36,502 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:01:36,503 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/sv-benchmarks/c/termination-crafted/Benghazi.c [2020-11-30 01:01:36,521 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/data/ef7822c27/391b0b9f49ee444d8e26e4ead9097031/FLAGad362c5a5 [2020-11-30 01:01:36,891 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/data/ef7822c27/391b0b9f49ee444d8e26e4ead9097031 [2020-11-30 01:01:36,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:01:36,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:01:36,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:01:36,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:01:36,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:01:36,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:01:36" (1/1) ... [2020-11-30 01:01:36,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a9cc60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:36, skipping insertion in model container [2020-11-30 01:01:36,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:01:36" (1/1) ... [2020-11-30 01:01:36,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:01:36,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:01:37,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:01:37,065 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:01:37,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:01:37,104 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:01:37,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:37 WrapperNode [2020-11-30 01:01:37,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:01:37,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:01:37,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:01:37,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:01:37,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:37" (1/1) ... [2020-11-30 01:01:37,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:37" (1/1) ... [2020-11-30 01:01:37,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:01:37,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:01:37,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:01:37,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:01:37,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:37" (1/1) ... [2020-11-30 01:01:37,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:37" (1/1) ... [2020-11-30 01:01:37,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:37" (1/1) ... [2020-11-30 01:01:37,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:37" (1/1) ... [2020-11-30 01:01:37,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:37" (1/1) ... [2020-11-30 01:01:37,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:37" (1/1) ... [2020-11-30 01:01:37,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:37" (1/1) ... [2020-11-30 01:01:37,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:01:37,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:01:37,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:01:37,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:01:37,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:01:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:01:37,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:01:37,491 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:01:37,491 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 01:01:37,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:01:37 BoogieIcfgContainer [2020-11-30 01:01:37,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:01:37,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:01:37,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:01:37,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:01:37,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:01:36" (1/3) ... [2020-11-30 01:01:37,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c637ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:01:37, skipping insertion in model container [2020-11-30 01:01:37,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:01:37" (2/3) ... [2020-11-30 01:01:37,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c637ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:01:37, skipping insertion in model container [2020-11-30 01:01:37,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:01:37" (3/3) ... [2020-11-30 01:01:37,503 INFO L111 eAbstractionObserver]: Analyzing ICFG Benghazi.c [2020-11-30 01:01:37,514 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:01:37,519 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-11-30 01:01:37,531 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-30 01:01:37,556 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:01:37,556 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:01:37,556 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:01:37,556 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:01:37,556 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:01:37,557 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:01:37,557 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:01:37,557 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:01:37,572 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-11-30 01:01:37,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 01:01:37,581 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:37,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-30 01:01:37,583 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:37,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:37,589 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-11-30 01:01:37,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:37,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706999028] [2020-11-30 01:01:37,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:37,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:37,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706999028] [2020-11-30 01:01:37,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:01:37,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:01:37,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584091224] [2020-11-30 01:01:37,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:01:37,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:37,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:01:37,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:37,852 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2020-11-30 01:01:37,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:37,934 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-11-30 01:01:37,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:01:37,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-30 01:01:37,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:37,944 INFO L225 Difference]: With dead ends: 30 [2020-11-30 01:01:37,944 INFO L226 Difference]: Without dead ends: 17 [2020-11-30 01:01:37,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:37,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-30 01:01:37,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-11-30 01:01:37,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-30 01:01:37,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-30 01:01:37,982 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2020-11-30 01:01:37,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:37,982 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-30 01:01:37,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:01:37,983 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-30 01:01:37,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 01:01:37,983 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:37,983 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 01:01:37,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:01:37,984 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:37,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:37,985 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2020-11-30 01:01:37,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:37,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286577116] [2020-11-30 01:01:37,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:38,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:38,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286577116] [2020-11-30 01:01:38,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:01:38,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:01:38,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795267150] [2020-11-30 01:01:38,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:01:38,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:38,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:01:38,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:01:38,050 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2020-11-30 01:01:38,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:38,130 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-11-30 01:01:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:01:38,131 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-30 01:01:38,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:38,132 INFO L225 Difference]: With dead ends: 22 [2020-11-30 01:01:38,132 INFO L226 Difference]: Without dead ends: 21 [2020-11-30 01:01:38,132 INFO L677 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 [2020-11-30 01:01:38,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-30 01:01:38,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2020-11-30 01:01:38,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-30 01:01:38,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-30 01:01:38,137 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2020-11-30 01:01:38,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:38,137 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-11-30 01:01:38,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:01:38,138 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-30 01:01:38,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:01:38,138 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:38,138 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 01:01:38,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:01:38,139 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:38,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:38,140 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2020-11-30 01:01:38,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:38,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859448362] [2020-11-30 01:01:38,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:38,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:38,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859448362] [2020-11-30 01:01:38,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:01:38,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:01:38,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901248174] [2020-11-30 01:01:38,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:01:38,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:38,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:01:38,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:38,170 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 3 states. [2020-11-30 01:01:38,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:38,200 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2020-11-30 01:01:38,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:01:38,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 01:01:38,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:38,203 INFO L225 Difference]: With dead ends: 24 [2020-11-30 01:01:38,203 INFO L226 Difference]: Without dead ends: 23 [2020-11-30 01:01:38,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:38,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-30 01:01:38,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2020-11-30 01:01:38,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 01:01:38,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-11-30 01:01:38,208 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 5 [2020-11-30 01:01:38,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:38,209 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-11-30 01:01:38,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:01:38,209 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-11-30 01:01:38,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:01:38,209 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:38,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:01:38,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:01:38,210 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:38,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:38,210 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2020-11-30 01:01:38,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:38,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601131539] [2020-11-30 01:01:38,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:38,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:38,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601131539] [2020-11-30 01:01:38,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:01:38,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:01:38,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73538239] [2020-11-30 01:01:38,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:01:38,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:38,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:01:38,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:38,240 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2020-11-30 01:01:38,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:38,260 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-11-30 01:01:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:01:38,262 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-30 01:01:38,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:38,263 INFO L225 Difference]: With dead ends: 24 [2020-11-30 01:01:38,263 INFO L226 Difference]: Without dead ends: 23 [2020-11-30 01:01:38,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:38,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-30 01:01:38,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2020-11-30 01:01:38,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 01:01:38,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-11-30 01:01:38,269 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2020-11-30 01:01:38,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:38,270 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-11-30 01:01:38,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:01:38,270 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-11-30 01:01:38,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:01:38,270 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:38,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:01:38,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:01:38,271 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:38,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:38,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1366846491, now seen corresponding path program 1 times [2020-11-30 01:01:38,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:38,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545797218] [2020-11-30 01:01:38,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:38,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:38,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545797218] [2020-11-30 01:01:38,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:01:38,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:01:38,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40176611] [2020-11-30 01:01:38,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:01:38,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:38,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:01:38,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:01:38,333 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 4 states. [2020-11-30 01:01:38,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:38,386 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-11-30 01:01:38,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:01:38,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-30 01:01:38,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:38,389 INFO L225 Difference]: With dead ends: 27 [2020-11-30 01:01:38,389 INFO L226 Difference]: Without dead ends: 26 [2020-11-30 01:01:38,389 INFO L677 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 [2020-11-30 01:01:38,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-30 01:01:38,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2020-11-30 01:01:38,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-30 01:01:38,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-11-30 01:01:38,394 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2020-11-30 01:01:38,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:38,394 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-11-30 01:01:38,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:01:38,394 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-11-30 01:01:38,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:01:38,395 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:38,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:01:38,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:01:38,396 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:38,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:38,396 INFO L82 PathProgramCache]: Analyzing trace with hash 577431791, now seen corresponding path program 1 times [2020-11-30 01:01:38,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:38,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893849613] [2020-11-30 01:01:38,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:38,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:38,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893849613] [2020-11-30 01:01:38,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:01:38,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:01:38,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857195210] [2020-11-30 01:01:38,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:01:38,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:38,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:01:38,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:01:38,454 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 4 states. [2020-11-30 01:01:38,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:38,545 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-11-30 01:01:38,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:01:38,547 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-30 01:01:38,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:38,547 INFO L225 Difference]: With dead ends: 27 [2020-11-30 01:01:38,547 INFO L226 Difference]: Without dead ends: 26 [2020-11-30 01:01:38,548 INFO L677 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 [2020-11-30 01:01:38,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-30 01:01:38,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2020-11-30 01:01:38,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 01:01:38,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-11-30 01:01:38,552 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2020-11-30 01:01:38,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:38,552 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-11-30 01:01:38,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:01:38,553 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-11-30 01:01:38,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:01:38,553 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:38,553 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:01:38,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:01:38,554 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:38,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:38,554 INFO L82 PathProgramCache]: Analyzing trace with hash 861171249, now seen corresponding path program 1 times [2020-11-30 01:01:38,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:38,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146487570] [2020-11-30 01:01:38,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:38,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:38,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146487570] [2020-11-30 01:01:38,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711640309] [2020-11-30 01:01:38,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:38,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:01:38,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:38,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:38,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:38,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-11-30 01:01:38,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677889347] [2020-11-30 01:01:38,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:01:38,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:38,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:01:38,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:01:38,865 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 8 states. [2020-11-30 01:01:39,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:39,015 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-11-30 01:01:39,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:01:39,015 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-11-30 01:01:39,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:39,016 INFO L225 Difference]: With dead ends: 30 [2020-11-30 01:01:39,016 INFO L226 Difference]: Without dead ends: 29 [2020-11-30 01:01:39,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:01:39,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-30 01:01:39,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2020-11-30 01:01:39,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-30 01:01:39,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-11-30 01:01:39,021 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 10 [2020-11-30 01:01:39,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:39,021 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-11-30 01:01:39,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:01:39,022 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-11-30 01:01:39,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:01:39,022 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:39,022 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:01:39,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-30 01:01:39,223 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:39,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:39,224 INFO L82 PathProgramCache]: Analyzing trace with hash 926504987, now seen corresponding path program 1 times [2020-11-30 01:01:39,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:39,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839750930] [2020-11-30 01:01:39,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:39,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839750930] [2020-11-30 01:01:39,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34200286] [2020-11-30 01:01:39,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-11-30 01:01:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:39,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:01:39,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:39,369 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:39,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:39,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2020-11-30 01:01:39,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893513172] [2020-11-30 01:01:39,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:01:39,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:39,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:01:39,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:01:39,371 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 6 states. [2020-11-30 01:01:39,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:39,459 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-11-30 01:01:39,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:01:39,459 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-30 01:01:39,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:39,460 INFO L225 Difference]: With dead ends: 29 [2020-11-30 01:01:39,460 INFO L226 Difference]: Without dead ends: 28 [2020-11-30 01:01:39,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:01:39,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-30 01:01:39,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2020-11-30 01:01:39,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-30 01:01:39,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-11-30 01:01:39,464 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 11 [2020-11-30 01:01:39,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:39,464 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-11-30 01:01:39,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:01:39,465 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-11-30 01:01:39,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:01:39,465 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:39,465 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-30 01:01:39,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:39,679 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:39,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:39,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1343116429, now seen corresponding path program 1 times [2020-11-30 01:01:39,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:39,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031055531] [2020-11-30 01:01:39,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:39,735 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:39,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031055531] [2020-11-30 01:01:39,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180560893] [2020-11-30 01:01:39,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:39,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:01:39,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:39,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:39,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:39,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-11-30 01:01:39,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767860187] [2020-11-30 01:01:39,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:01:39,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:39,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:01:39,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:01:39,786 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 5 states. [2020-11-30 01:01:39,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:39,886 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-11-30 01:01:39,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:01:39,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-30 01:01:39,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:39,888 INFO L225 Difference]: With dead ends: 31 [2020-11-30 01:01:39,888 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 01:01:39,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:01:39,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 01:01:39,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2020-11-30 01:01:39,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-30 01:01:39,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2020-11-30 01:01:39,892 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 12 [2020-11-30 01:01:39,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:39,893 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2020-11-30 01:01:39,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:01:39,893 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2020-11-30 01:01:39,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:01:39,893 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:39,893 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-11-30 01:01:40,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:40,111 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:40,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:40,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1313063709, now seen corresponding path program 1 times [2020-11-30 01:01:40,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:40,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313506865] [2020-11-30 01:01:40,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:40,142 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:40,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313506865] [2020-11-30 01:01:40,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:01:40,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:01:40,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177596200] [2020-11-30 01:01:40,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:01:40,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:40,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:01:40,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:40,145 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 3 states. [2020-11-30 01:01:40,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:40,160 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-11-30 01:01:40,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:01:40,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-30 01:01:40,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:40,162 INFO L225 Difference]: With dead ends: 25 [2020-11-30 01:01:40,162 INFO L226 Difference]: Without dead ends: 24 [2020-11-30 01:01:40,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:01:40,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-30 01:01:40,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-11-30 01:01:40,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-30 01:01:40,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-11-30 01:01:40,166 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2020-11-30 01:01:40,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:40,166 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-11-30 01:01:40,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:01:40,166 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-11-30 01:01:40,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:01:40,167 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:40,167 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2020-11-30 01:01:40,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 01:01:40,167 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:40,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:40,168 INFO L82 PathProgramCache]: Analyzing trace with hash 2050269365, now seen corresponding path program 1 times [2020-11-30 01:01:40,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:40,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447941929] [2020-11-30 01:01:40,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:40,223 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:40,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447941929] [2020-11-30 01:01:40,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857080881] [2020-11-30 01:01:40,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-11-30 01:01:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:40,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:01:40,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:40,269 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:40,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:40,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-11-30 01:01:40,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061963561] [2020-11-30 01:01:40,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:01:40,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:40,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:01:40,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:01:40,271 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 5 states. [2020-11-30 01:01:40,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:40,365 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-30 01:01:40,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:01:40,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-30 01:01:40,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:40,368 INFO L225 Difference]: With dead ends: 33 [2020-11-30 01:01:40,368 INFO L226 Difference]: Without dead ends: 32 [2020-11-30 01:01:40,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:01:40,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-30 01:01:40,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2020-11-30 01:01:40,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-30 01:01:40,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2020-11-30 01:01:40,372 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 14 [2020-11-30 01:01:40,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:40,372 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2020-11-30 01:01:40,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:01:40,373 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2020-11-30 01:01:40,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:01:40,373 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:40,373 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1] [2020-11-30 01:01:40,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:40,587 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:40,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:40,588 INFO L82 PathProgramCache]: Analyzing trace with hash -866159073, now seen corresponding path program 1 times [2020-11-30 01:01:40,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:40,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887433229] [2020-11-30 01:01:40,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:40,657 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:40,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887433229] [2020-11-30 01:01:40,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722323442] [2020-11-30 01:01:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:40,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:01:40,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:40,702 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:40,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:40,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-11-30 01:01:40,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299768327] [2020-11-30 01:01:40,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:01:40,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:40,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:01:40,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:01:40,704 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 5 states. [2020-11-30 01:01:40,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:40,795 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2020-11-30 01:01:40,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:01:40,796 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-30 01:01:40,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:40,796 INFO L225 Difference]: With dead ends: 38 [2020-11-30 01:01:40,796 INFO L226 Difference]: Without dead ends: 37 [2020-11-30 01:01:40,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:01:40,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-30 01:01:40,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2020-11-30 01:01:40,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-30 01:01:40,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-11-30 01:01:40,801 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 15 [2020-11-30 01:01:40,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:40,801 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-11-30 01:01:40,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:01:40,801 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-11-30 01:01:40,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:01:40,802 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:40,802 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1] [2020-11-30 01:01:41,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-30 01:01:41,003 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:41,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:41,003 INFO L82 PathProgramCache]: Analyzing trace with hash 844787553, now seen corresponding path program 2 times [2020-11-30 01:01:41,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:41,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930673552] [2020-11-30 01:01:41,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:41,123 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:41,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930673552] [2020-11-30 01:01:41,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391276027] [2020-11-30 01:01:41,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:41,154 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 01:01:41,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:01:41,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 01:01:41,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:41,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:41,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2020-11-30 01:01:41,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794207733] [2020-11-30 01:01:41,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 01:01:41,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:41,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 01:01:41,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-11-30 01:01:41,331 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 14 states. [2020-11-30 01:01:41,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:41,500 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2020-11-30 01:01:41,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:01:41,500 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-11-30 01:01:41,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:41,500 INFO L225 Difference]: With dead ends: 33 [2020-11-30 01:01:41,500 INFO L226 Difference]: Without dead ends: 31 [2020-11-30 01:01:41,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-11-30 01:01:41,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-30 01:01:41,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2020-11-30 01:01:41,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-30 01:01:41,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-11-30 01:01:41,504 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 17 [2020-11-30 01:01:41,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:41,505 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-11-30 01:01:41,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 01:01:41,505 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-11-30 01:01:41,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:01:41,505 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:41,505 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1] [2020-11-30 01:01:41,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:41,722 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:41,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:41,722 INFO L82 PathProgramCache]: Analyzing trace with hash 418610411, now seen corresponding path program 2 times [2020-11-30 01:01:41,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:41,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465541095] [2020-11-30 01:01:41,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:41,799 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:41,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465541095] [2020-11-30 01:01:41,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136237366] [2020-11-30 01:01:41,800 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-11-30 01:01:41,829 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 01:01:41,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:01:41,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 01:01:41,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:41,856 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:41,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:41,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-11-30 01:01:41,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759794340] [2020-11-30 01:01:41,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:01:41,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:41,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:01:41,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:01:41,857 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 8 states. [2020-11-30 01:01:41,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:41,994 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2020-11-30 01:01:41,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-30 01:01:41,994 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-11-30 01:01:41,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:41,995 INFO L225 Difference]: With dead ends: 32 [2020-11-30 01:01:41,995 INFO L226 Difference]: Without dead ends: 31 [2020-11-30 01:01:41,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-11-30 01:01:41,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-30 01:01:41,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2020-11-30 01:01:41,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-30 01:01:41,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2020-11-30 01:01:41,998 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 18 [2020-11-30 01:01:41,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:41,999 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2020-11-30 01:01:41,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:01:41,999 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2020-11-30 01:01:41,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 01:01:41,999 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:41,999 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1] [2020-11-30 01:01:42,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-30 01:01:42,200 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:42,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:42,200 INFO L82 PathProgramCache]: Analyzing trace with hash 92020899, now seen corresponding path program 2 times [2020-11-30 01:01:42,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:42,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784187591] [2020-11-30 01:01:42,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:42,294 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:42,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784187591] [2020-11-30 01:01:42,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715356594] [2020-11-30 01:01:42,294 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-11-30 01:01:42,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 01:01:42,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:01:42,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:01:42,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:42,346 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:42,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:42,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-30 01:01:42,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483885606] [2020-11-30 01:01:42,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:01:42,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:42,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:01:42,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:01:42,349 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 6 states. [2020-11-30 01:01:42,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:42,443 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2020-11-30 01:01:42,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:01:42,443 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-11-30 01:01:42,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:42,444 INFO L225 Difference]: With dead ends: 34 [2020-11-30 01:01:42,444 INFO L226 Difference]: Without dead ends: 33 [2020-11-30 01:01:42,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:01:42,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-30 01:01:42,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2020-11-30 01:01:42,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-30 01:01:42,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2020-11-30 01:01:42,448 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 19 [2020-11-30 01:01:42,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:42,448 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2020-11-30 01:01:42,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:01:42,448 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2020-11-30 01:01:42,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 01:01:42,449 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:42,449 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1] [2020-11-30 01:01:42,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-30 01:01:42,650 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:42,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:42,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1762227739, now seen corresponding path program 2 times [2020-11-30 01:01:42,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:42,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66642872] [2020-11-30 01:01:42,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:42,704 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:42,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66642872] [2020-11-30 01:01:42,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849754315] [2020-11-30 01:01:42,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:42,745 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 01:01:42,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:01:42,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 01:01:42,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:42,764 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:42,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:42,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-11-30 01:01:42,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613101414] [2020-11-30 01:01:42,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:01:42,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:42,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:01:42,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:01:42,766 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 7 states. [2020-11-30 01:01:42,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:42,873 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2020-11-30 01:01:42,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:01:42,873 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-11-30 01:01:42,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:42,874 INFO L225 Difference]: With dead ends: 37 [2020-11-30 01:01:42,874 INFO L226 Difference]: Without dead ends: 36 [2020-11-30 01:01:42,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:01:42,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-30 01:01:42,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2020-11-30 01:01:42,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-30 01:01:42,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2020-11-30 01:01:42,878 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 21 [2020-11-30 01:01:42,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:42,879 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2020-11-30 01:01:42,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:01:42,879 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2020-11-30 01:01:42,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 01:01:42,880 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:42,880 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1] [2020-11-30 01:01:43,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-11-30 01:01:43,099 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:43,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:43,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1019392485, now seen corresponding path program 3 times [2020-11-30 01:01:43,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:43,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939033497] [2020-11-30 01:01:43,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:43,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:43,170 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:43,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939033497] [2020-11-30 01:01:43,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364257874] [2020-11-30 01:01:43,170 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-11-30 01:01:43,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-11-30 01:01:43,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:43,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:01:43,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:43,248 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-30 01:01:43,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:01:43,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2020-11-30 01:01:43,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879464567] [2020-11-30 01:01:43,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:01:43,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:43,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:01:43,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-11-30 01:01:43,250 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 5 states. [2020-11-30 01:01:43,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:43,302 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2020-11-30 01:01:43,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:01:43,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-30 01:01:43,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:43,302 INFO L225 Difference]: With dead ends: 31 [2020-11-30 01:01:43,302 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 01:01:43,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-11-30 01:01:43,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 01:01:43,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-30 01:01:43,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 01:01:43,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2020-11-30 01:01:43,305 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 25 [2020-11-30 01:01:43,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:43,305 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2020-11-30 01:01:43,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:01:43,305 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2020-11-30 01:01:43,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-30 01:01:43,306 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:43,306 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1] [2020-11-30 01:01:43,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-11-30 01:01:43,507 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:43,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:43,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1536395917, now seen corresponding path program 3 times [2020-11-30 01:01:43,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:43,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825649813] [2020-11-30 01:01:43,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:43,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825649813] [2020-11-30 01:01:43,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787111422] [2020-11-30 01:01:43,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:43,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-11-30 01:01:43,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:01:43,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 01:01:43,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:43,735 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:43,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:43,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2020-11-30 01:01:43,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743309869] [2020-11-30 01:01:43,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-30 01:01:43,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:43,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-30 01:01:43,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-11-30 01:01:43,737 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 15 states. [2020-11-30 01:01:44,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:44,154 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2020-11-30 01:01:44,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 01:01:44,154 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 26 [2020-11-30 01:01:44,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:44,155 INFO L225 Difference]: With dead ends: 40 [2020-11-30 01:01:44,155 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 01:01:44,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2020-11-30 01:01:44,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 01:01:44,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2020-11-30 01:01:44,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-30 01:01:44,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2020-11-30 01:01:44,159 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 26 [2020-11-30 01:01:44,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:44,160 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2020-11-30 01:01:44,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-30 01:01:44,160 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2020-11-30 01:01:44,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 01:01:44,160 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:44,160 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1] [2020-11-30 01:01:44,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-11-30 01:01:44,375 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:44,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:44,375 INFO L82 PathProgramCache]: Analyzing trace with hash 992275125, now seen corresponding path program 3 times [2020-11-30 01:01:44,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:44,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708386522] [2020-11-30 01:01:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:44,435 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:44,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708386522] [2020-11-30 01:01:44,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891437016] [2020-11-30 01:01:44,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:44,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-11-30 01:01:44,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:01:44,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 01:01:44,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:44,594 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:44,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:44,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2020-11-30 01:01:44,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979995127] [2020-11-30 01:01:44,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-30 01:01:44,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:44,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-30 01:01:44,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-11-30 01:01:44,596 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 15 states. [2020-11-30 01:01:45,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:45,020 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2020-11-30 01:01:45,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-30 01:01:45,020 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 28 [2020-11-30 01:01:45,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:45,021 INFO L225 Difference]: With dead ends: 58 [2020-11-30 01:01:45,021 INFO L226 Difference]: Without dead ends: 56 [2020-11-30 01:01:45,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-11-30 01:01:45,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-30 01:01:45,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 51. [2020-11-30 01:01:45,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-30 01:01:45,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-11-30 01:01:45,026 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 28 [2020-11-30 01:01:45,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:45,026 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-11-30 01:01:45,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-30 01:01:45,026 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-11-30 01:01:45,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-30 01:01:45,027 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:45,028 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 1, 1] [2020-11-30 01:01:45,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:45,247 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:45,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:45,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1564327795, now seen corresponding path program 4 times [2020-11-30 01:01:45,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:45,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217679440] [2020-11-30 01:01:45,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:45,376 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:45,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217679440] [2020-11-30 01:01:45,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139765611] [2020-11-30 01:01:45,377 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:45,421 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-30 01:01:45,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:01:45,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-30 01:01:45,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:45,454 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:45,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:45,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2020-11-30 01:01:45,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463585018] [2020-11-30 01:01:45,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 01:01:45,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:45,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 01:01:45,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-11-30 01:01:45,456 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 11 states. [2020-11-30 01:01:45,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:45,704 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2020-11-30 01:01:45,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 01:01:45,705 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 40 [2020-11-30 01:01:45,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:45,705 INFO L225 Difference]: With dead ends: 53 [2020-11-30 01:01:45,705 INFO L226 Difference]: Without dead ends: 52 [2020-11-30 01:01:45,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2020-11-30 01:01:45,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-30 01:01:45,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2020-11-30 01:01:45,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-30 01:01:45,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2020-11-30 01:01:45,711 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 40 [2020-11-30 01:01:45,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:45,711 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2020-11-30 01:01:45,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 01:01:45,711 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2020-11-30 01:01:45,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-30 01:01:45,712 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:45,712 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 1, 1] [2020-11-30 01:01:45,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2020-11-30 01:01:45,943 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:45,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:45,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1573811037, now seen corresponding path program 5 times [2020-11-30 01:01:45,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:45,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207405369] [2020-11-30 01:01:45,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:46,075 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:46,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207405369] [2020-11-30 01:01:46,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494873970] [2020-11-30 01:01:46,075 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:46,112 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2020-11-30 01:01:46,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:01:46,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 01:01:46,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:46,130 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:46,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:46,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2020-11-30 01:01:46,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748862168] [2020-11-30 01:01:46,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-30 01:01:46,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:46,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-30 01:01:46,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:01:46,132 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 12 states. [2020-11-30 01:01:46,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:46,429 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2020-11-30 01:01:46,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 01:01:46,429 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2020-11-30 01:01:46,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:46,430 INFO L225 Difference]: With dead ends: 61 [2020-11-30 01:01:46,430 INFO L226 Difference]: Without dead ends: 60 [2020-11-30 01:01:46,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2020-11-30 01:01:46,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-30 01:01:46,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2020-11-30 01:01:46,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-30 01:01:46,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2020-11-30 01:01:46,436 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 47 [2020-11-30 01:01:46,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:46,436 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2020-11-30 01:01:46,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-30 01:01:46,436 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2020-11-30 01:01:46,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-30 01:01:46,438 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:46,438 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 1, 1] [2020-11-30 01:01:46,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:46,663 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:46,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:46,663 INFO L82 PathProgramCache]: Analyzing trace with hash -603916827, now seen corresponding path program 4 times [2020-11-30 01:01:46,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:46,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062978561] [2020-11-30 01:01:46,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:46,826 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:46,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062978561] [2020-11-30 01:01:46,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007539196] [2020-11-30 01:01:46,826 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:46,857 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-30 01:01:46,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:01:46,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 01:01:46,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:46,876 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:46,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:46,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2020-11-30 01:01:46,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810938604] [2020-11-30 01:01:46,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-30 01:01:46,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:46,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-30 01:01:46,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-11-30 01:01:46,879 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 13 states. [2020-11-30 01:01:47,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:47,129 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2020-11-30 01:01:47,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-30 01:01:47,132 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 49 [2020-11-30 01:01:47,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:47,132 INFO L225 Difference]: With dead ends: 63 [2020-11-30 01:01:47,133 INFO L226 Difference]: Without dead ends: 62 [2020-11-30 01:01:47,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2020-11-30 01:01:47,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-11-30 01:01:47,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-11-30 01:01:47,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-11-30 01:01:47,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2020-11-30 01:01:47,139 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 49 [2020-11-30 01:01:47,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:47,139 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2020-11-30 01:01:47,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-30 01:01:47,139 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2020-11-30 01:01:47,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-30 01:01:47,141 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:47,141 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 1, 1] [2020-11-30 01:01:47,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-11-30 01:01:47,375 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:47,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:47,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1090881907, now seen corresponding path program 6 times [2020-11-30 01:01:47,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:47,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65426971] [2020-11-30 01:01:47,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:47,501 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:47,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65426971] [2020-11-30 01:01:47,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140217531] [2020-11-30 01:01:47,502 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:47,544 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2020-11-30 01:01:47,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:01:47,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 28 conjunts are in the unsatisfiable core [2020-11-30 01:01:47,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:48,155 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 54 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:48,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:48,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19] total 31 [2020-11-30 01:01:48,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945538606] [2020-11-30 01:01:48,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-11-30 01:01:48,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:48,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-11-30 01:01:48,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=949, Unknown=0, NotChecked=0, Total=1056 [2020-11-30 01:01:48,158 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 33 states. [2020-11-30 01:01:49,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:49,408 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-11-30 01:01:49,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-30 01:01:49,409 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 54 [2020-11-30 01:01:49,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:49,409 INFO L225 Difference]: With dead ends: 67 [2020-11-30 01:01:49,409 INFO L226 Difference]: Without dead ends: 66 [2020-11-30 01:01:49,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=493, Invalid=2057, Unknown=0, NotChecked=0, Total=2550 [2020-11-30 01:01:49,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-30 01:01:49,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 57. [2020-11-30 01:01:49,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-30 01:01:49,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2020-11-30 01:01:49,425 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 54 [2020-11-30 01:01:49,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:49,426 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2020-11-30 01:01:49,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-11-30 01:01:49,426 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2020-11-30 01:01:49,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-30 01:01:49,431 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:49,432 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 1, 1] [2020-11-30 01:01:49,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:49,647 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:49,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:49,648 INFO L82 PathProgramCache]: Analyzing trace with hash 365493941, now seen corresponding path program 5 times [2020-11-30 01:01:49,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:49,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433691240] [2020-11-30 01:01:49,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:49,798 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:49,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433691240] [2020-11-30 01:01:49,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180105321] [2020-11-30 01:01:49,799 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:49,845 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2020-11-30 01:01:49,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:01:49,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 01:01:49,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:49,874 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:49,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:49,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2020-11-30 01:01:49,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790726324] [2020-11-30 01:01:49,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 01:01:49,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:49,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 01:01:49,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-11-30 01:01:49,879 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand 14 states. [2020-11-30 01:01:50,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:50,179 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2020-11-30 01:01:50,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-30 01:01:50,179 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 56 [2020-11-30 01:01:50,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:50,180 INFO L225 Difference]: With dead ends: 69 [2020-11-30 01:01:50,180 INFO L226 Difference]: Without dead ends: 68 [2020-11-30 01:01:50,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=208, Invalid=442, Unknown=0, NotChecked=0, Total=650 [2020-11-30 01:01:50,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-30 01:01:50,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2020-11-30 01:01:50,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-30 01:01:50,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2020-11-30 01:01:50,193 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 56 [2020-11-30 01:01:50,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:50,193 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2020-11-30 01:01:50,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 01:01:50,193 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2020-11-30 01:01:50,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-30 01:01:50,195 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:50,196 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 1, 1] [2020-11-30 01:01:50,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-11-30 01:01:50,414 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:50,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:50,415 INFO L82 PathProgramCache]: Analyzing trace with hash 995912677, now seen corresponding path program 6 times [2020-11-30 01:01:50,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:50,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339497388] [2020-11-30 01:01:50,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:50,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339497388] [2020-11-30 01:01:50,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634242871] [2020-11-30 01:01:50,594 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:50,633 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2020-11-30 01:01:50,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:01:50,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-30 01:01:50,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:50,654 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:50,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:50,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2020-11-30 01:01:50,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604614173] [2020-11-30 01:01:50,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-30 01:01:50,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:50,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-30 01:01:50,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2020-11-30 01:01:50,656 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 16 states. [2020-11-30 01:01:50,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:50,994 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2020-11-30 01:01:50,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-30 01:01:50,994 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 63 [2020-11-30 01:01:50,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:50,995 INFO L225 Difference]: With dead ends: 76 [2020-11-30 01:01:50,995 INFO L226 Difference]: Without dead ends: 75 [2020-11-30 01:01:50,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=275, Invalid=595, Unknown=0, NotChecked=0, Total=870 [2020-11-30 01:01:50,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-11-30 01:01:51,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2020-11-30 01:01:51,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-30 01:01:51,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2020-11-30 01:01:51,000 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 63 [2020-11-30 01:01:51,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:51,001 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2020-11-30 01:01:51,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-30 01:01:51,001 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2020-11-30 01:01:51,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-11-30 01:01:51,002 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:51,002 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 1, 1] [2020-11-30 01:01:51,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-11-30 01:01:51,211 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:51,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:51,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1799567179, now seen corresponding path program 7 times [2020-11-30 01:01:51,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:51,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657264126] [2020-11-30 01:01:51,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:51,409 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:51,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657264126] [2020-11-30 01:01:51,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881920255] [2020-11-30 01:01:51,410 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:51,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-30 01:01:51,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:51,483 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:51,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:51,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2020-11-30 01:01:51,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539641754] [2020-11-30 01:01:51,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-30 01:01:51,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:51,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-30 01:01:51,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2020-11-30 01:01:51,485 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand 17 states. [2020-11-30 01:01:51,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:51,860 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2020-11-30 01:01:51,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-30 01:01:51,860 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 70 [2020-11-30 01:01:51,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:51,861 INFO L225 Difference]: With dead ends: 83 [2020-11-30 01:01:51,861 INFO L226 Difference]: Without dead ends: 82 [2020-11-30 01:01:51,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=680, Unknown=0, NotChecked=0, Total=992 [2020-11-30 01:01:51,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-11-30 01:01:51,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2020-11-30 01:01:51,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-30 01:01:51,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2020-11-30 01:01:51,866 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 70 [2020-11-30 01:01:51,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:51,867 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2020-11-30 01:01:51,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-30 01:01:51,867 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2020-11-30 01:01:51,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-11-30 01:01:51,868 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:51,868 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1] [2020-11-30 01:01:52,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-11-30 01:01:52,079 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:52,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:52,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1114726885, now seen corresponding path program 8 times [2020-11-30 01:01:52,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:52,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014498004] [2020-11-30 01:01:52,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:52,297 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:52,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014498004] [2020-11-30 01:01:52,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508929127] [2020-11-30 01:01:52,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:52,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 01:01:52,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:01:52,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-30 01:01:52,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:52,368 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:52,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:01:52,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2020-11-30 01:01:52,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279184924] [2020-11-30 01:01:52,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-30 01:01:52,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:01:52,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-30 01:01:52,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2020-11-30 01:01:52,371 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 19 states. [2020-11-30 01:01:52,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:01:52,832 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2020-11-30 01:01:52,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-30 01:01:52,832 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 77 [2020-11-30 01:01:52,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:01:52,833 INFO L225 Difference]: With dead ends: 90 [2020-11-30 01:01:52,833 INFO L226 Difference]: Without dead ends: 89 [2020-11-30 01:01:52,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=393, Invalid=867, Unknown=0, NotChecked=0, Total=1260 [2020-11-30 01:01:52,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-30 01:01:52,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 85. [2020-11-30 01:01:52,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-11-30 01:01:52,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 85 transitions. [2020-11-30 01:01:52,838 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 85 transitions. Word has length 77 [2020-11-30 01:01:52,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:01:52,838 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 85 transitions. [2020-11-30 01:01:52,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-30 01:01:52,839 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2020-11-30 01:01:52,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-11-30 01:01:52,839 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:01:52,839 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 1, 1] [2020-11-30 01:01:53,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-11-30 01:01:53,040 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:01:53,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:01:53,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1874390347, now seen corresponding path program 9 times [2020-11-30 01:01:53,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:01:53,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060819040] [2020-11-30 01:01:53,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:01:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:01:53,273 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:53,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060819040] [2020-11-30 01:01:53,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403467898] [2020-11-30 01:01:53,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:01:53,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2020-11-30 01:01:53,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:01:53,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 34 conjunts are in the unsatisfiable core [2020-11-30 01:01:53,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:01:56,598 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ULTIMATE.start_main_~d1~0_12 Int) (aux_div_v_ULTIMATE.start_main_~x~0_31_89 Int)) (let ((.cse0 (* 2 aux_div_v_ULTIMATE.start_main_~x~0_31_89))) (and (< (+ c_ULTIMATE.start_main_~d2~0 c_ULTIMATE.start_main_~x~0 aux_div_v_ULTIMATE.start_main_~x~0_31_89) 2147483643) (< (+ c_ULTIMATE.start_main_~d2~0 c_ULTIMATE.start_main_~x~0) (+ (* 2 v_ULTIMATE.start_main_~d1~0_12) .cse0 4294967294)) (< c_ULTIMATE.start_main_~x~0 (+ v_ULTIMATE.start_main_~d1~0_12 .cse0 4294967291)) (< (+ c_ULTIMATE.start_main_~x~0 v_ULTIMATE.start_main_~d1~0_12 aux_div_v_ULTIMATE.start_main_~x~0_31_89) 2147483640)))) is different from true [2020-11-30 01:02:36,689 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 24 [2020-11-30 01:02:38,790 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~d1old~0 Int) (v_ULTIMATE.start_main_~d1~0_12 Int) (aux_div_v_ULTIMATE.start_main_~x~0_31_89 Int)) (let ((.cse0 (* 2 ULTIMATE.start_main_~d1old~0)) (.cse1 (* 2 aux_div_v_ULTIMATE.start_main_~x~0_31_89))) (and (< (+ ULTIMATE.start_main_~d1old~0 c_ULTIMATE.start_main_~x~0 v_ULTIMATE.start_main_~d1~0_12 aux_div_v_ULTIMATE.start_main_~x~0_31_89) 2147483640) (< (+ .cse0 c_ULTIMATE.start_main_~x~0 aux_div_v_ULTIMATE.start_main_~x~0_31_89) 2147483644) (< (+ ULTIMATE.start_main_~d1old~0 c_ULTIMATE.start_main_~x~0) (+ v_ULTIMATE.start_main_~d1~0_12 .cse1 4294967291)) (< (+ .cse0 c_ULTIMATE.start_main_~x~0) (+ (* 2 v_ULTIMATE.start_main_~d1~0_12) .cse1 4294967295)) (<= c_ULTIMATE.start_main_~d2~0 (+ ULTIMATE.start_main_~d1old~0 1))))) is different from true [2020-11-30 01:02:39,407 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 145 proven. 271 refuted. 0 times theorem prover too weak. 9 trivial. 26 not checked. [2020-11-30 01:02:39,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:02:39,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 28] total 46 [2020-11-30 01:02:39,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129798598] [2020-11-30 01:02:39,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-11-30 01:02:39,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:39,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-11-30 01:02:39,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1803, Unknown=22, NotChecked=174, Total=2162 [2020-11-30 01:02:39,410 INFO L87 Difference]: Start difference. First operand 85 states and 85 transitions. Second operand 47 states. [2020-11-30 01:02:51,211 WARN L193 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-30 01:03:01,352 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-11-30 01:03:03,494 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 49 [2020-11-30 01:03:07,640 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 49 [2020-11-30 01:03:09,387 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 56 [2020-11-30 01:03:13,325 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 53 [2020-11-30 01:03:19,672 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 51 [2020-11-30 01:03:21,768 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification that was a NOOP. DAG size: 55 [2020-11-30 01:03:25,555 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-11-30 01:03:26,363 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-11-30 01:03:27,346 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-11-30 01:03:29,599 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2020-11-30 01:03:30,081 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2020-11-30 01:03:30,677 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2020-11-30 01:03:33,196 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2020-11-30 01:03:34,744 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2020-11-30 01:03:35,827 WARN L193 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2020-11-30 01:03:36,311 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2020-11-30 01:03:41,216 WARN L193 SmtUtils]: Spent 4.42 s on a formula simplification that was a NOOP. DAG size: 110 [2020-11-30 01:03:46,342 WARN L193 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 106 DAG size of output: 95 [2020-11-30 01:03:49,177 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 74 [2020-11-30 01:03:51,861 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 65 [2020-11-30 01:03:52,652 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2020-11-30 01:03:54,034 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 109 DAG size of output: 84 [2020-11-30 01:04:09,300 WARN L193 SmtUtils]: Spent 8.96 s on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2020-11-30 01:04:13,614 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2020-11-30 01:04:16,681 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 64 [2020-11-30 01:04:20,412 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2020-11-30 01:04:22,172 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 110 DAG size of output: 85 [2020-11-30 01:04:41,070 WARN L193 SmtUtils]: Spent 6.44 s on a formula simplification that was a NOOP. DAG size: 106 [2020-11-30 01:04:46,645 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 103 DAG size of output: 74 [2020-11-30 01:04:50,425 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 65 [2020-11-30 01:04:54,586 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2020-11-30 01:04:57,000 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 109 DAG size of output: 84 [2020-11-30 01:05:18,570 WARN L193 SmtUtils]: Spent 5.04 s on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2020-11-30 01:05:24,497 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2020-11-30 01:05:28,419 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 64 [2020-11-30 01:05:32,882 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2020-11-30 01:05:39,044 WARN L193 SmtUtils]: Spent 4.27 s on a formula simplification. DAG size of input: 110 DAG size of output: 85 [2020-11-30 01:06:06,505 WARN L193 SmtUtils]: Spent 5.43 s on a formula simplification. DAG size of input: 106 DAG size of output: 95 [2020-11-30 01:06:11,718 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 103 DAG size of output: 74 [2020-11-30 01:06:16,339 WARN L193 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 65 [2020-11-30 01:06:24,357 WARN L193 SmtUtils]: Spent 5.57 s on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2020-11-30 01:06:28,867 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 109 DAG size of output: 84 [2020-11-30 01:07:07,256 WARN L193 SmtUtils]: Spent 9.52 s on a formula simplification. DAG size of input: 109 DAG size of output: 93 [2020-11-30 01:07:13,826 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 108 DAG size of output: 73 [2020-11-30 01:07:20,494 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 110 DAG size of output: 64 [2020-11-30 01:07:32,141 WARN L193 SmtUtils]: Spent 8.35 s on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2020-11-30 01:07:37,204 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 115 DAG size of output: 98 [2020-11-30 01:08:09,362 WARN L193 SmtUtils]: Spent 5.50 s on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-11-30 01:08:16,843 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-11-30 01:08:29,912 WARN L193 SmtUtils]: Spent 6.69 s on a formula simplification. DAG size of input: 110 DAG size of output: 89 [2020-11-30 01:08:42,425 WARN L193 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-11-30 01:09:00,513 WARN L193 SmtUtils]: Spent 11.25 s on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-11-30 01:09:38,381 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification that was a NOOP. DAG size: 102 [2020-11-30 01:09:47,707 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2020-11-30 01:09:59,441 WARN L193 SmtUtils]: Spent 4.95 s on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2020-11-30 01:10:01,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:01,506 INFO L93 Difference]: Finished difference Result 96 states and 97 transitions. [2020-11-30 01:10:01,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-11-30 01:10:01,524 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 84 [2020-11-30 01:10:01,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:01,524 INFO L225 Difference]: With dead ends: 96 [2020-11-30 01:10:01,524 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:10:01,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 2610 ImplicationChecksByTransitivity, 458.4s TimeCoverageRelationStatistics Valid=2008, Invalid=10092, Unknown=118, NotChecked=438, Total=12656 [2020-11-30 01:10:01,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:10:01,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:10:01,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:10:01,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:10:01,530 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2020-11-30 01:10:01,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:01,531 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:10:01,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-11-30 01:10:01,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:10:01,531 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:10:01,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-11-30 01:10:01,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:10:01,933 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2020-11-30 01:10:22,654 WARN L193 SmtUtils]: Spent 20.70 s on a formula simplification. DAG size of input: 207 DAG size of output: 94 [2020-11-30 01:10:22,661 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-11-30 01:10:22,661 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:10:22,661 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-11-30 01:10:22,661 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2020-11-30 01:10:22,661 INFO L274 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-11-30 01:10:22,661 INFO L274 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-11-30 01:10:22,661 INFO L274 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-11-30 01:10:22,661 INFO L274 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-11-30 01:10:22,661 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-11-30 01:10:22,662 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-11-30 01:10:22,662 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:10:22,662 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2020-11-30 01:10:22,662 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:10:22,662 INFO L277 CegarLoopResult]: At program point L28(lines 16 29) the Hoare annotation is: true [2020-11-30 01:10:22,662 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-11-30 01:10:22,662 INFO L274 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-11-30 01:10:22,662 INFO L270 CegarLoopResult]: At program point L22-2(lines 22 27) the Hoare annotation is: (let ((.cse7 (+ ULTIMATE.start_main_~d2~0 ULTIMATE.start_main_~x~0)) (.cse6 (+ ULTIMATE.start_main_~d1old~0 ULTIMATE.start_main_~x~0))) (let ((.cse1 (<= 0 .cse6)) (.cse16 (<= ULTIMATE.start_main_~d1~0 75)) (.cse17 (<= 75 ULTIMATE.start_main_~d1~0)) (.cse11 (<= ULTIMATE.start_main_~d1~0 77)) (.cse13 (<= 77 ULTIMATE.start_main_~d1~0)) (.cse18 (<= 75 ULTIMATE.start_main_~d1old~0)) (.cse19 (<= ULTIMATE.start_main_~d2~0 76)) (.cse20 (<= ULTIMATE.start_main_~d1old~0 75)) (.cse21 (<= 76 ULTIMATE.start_main_~d2~0)) (.cse10 (<= ULTIMATE.start_main_~d2~0 78)) (.cse12 (<= ULTIMATE.start_main_~d1old~0 77)) (.cse0 (<= ULTIMATE.start_main_~d1~0 79)) (.cse2 (<= 78 ULTIMATE.start_main_~d2~0)) (.cse3 (<= 77 ULTIMATE.start_main_~d1old~0)) (.cse4 (<= 1 .cse7)) (.cse5 (<= 79 ULTIMATE.start_main_~d1~0)) (.cse14 (<= 74 ULTIMATE.start_main_~d2~0)) (.cse15 (<= ULTIMATE.start_main_~d2~0 74))) (or (and .cse0 (<= ULTIMATE.start_main_~d2~0 80) .cse1 .cse2 .cse3 .cse4 (<= ULTIMATE.start_main_~d1old~0 79) .cse5 (<= ULTIMATE.start_main_~x~0 2147483191)) (and (<= ULTIMATE.start_main_~d1old~0 2147483645) (<= .cse6 2147483191) .cse1 .cse2 (<= ULTIMATE.start_main_~d1~0 2147483645) .cse3 .cse4 (<= .cse7 2147483192) .cse5 (exists ((ULTIMATE.start_main_~d1old~0 Int) (v_ULTIMATE.start_main_~d1~0_12 Int) (aux_div_v_ULTIMATE.start_main_~x~0_31_89 Int)) (let ((.cse8 (* 2 ULTIMATE.start_main_~d1old~0)) (.cse9 (* 2 aux_div_v_ULTIMATE.start_main_~x~0_31_89))) (and (< (+ ULTIMATE.start_main_~d1old~0 ULTIMATE.start_main_~x~0 v_ULTIMATE.start_main_~d1~0_12 aux_div_v_ULTIMATE.start_main_~x~0_31_89) 2147483640) (< (+ .cse8 ULTIMATE.start_main_~x~0 aux_div_v_ULTIMATE.start_main_~x~0_31_89) 2147483644) (< (+ ULTIMATE.start_main_~d1old~0 ULTIMATE.start_main_~x~0) (+ v_ULTIMATE.start_main_~d1~0_12 .cse9 4294967291)) (< (+ .cse8 ULTIMATE.start_main_~x~0) (+ (* 2 v_ULTIMATE.start_main_~d1~0_12) .cse9 4294967295)) (<= ULTIMATE.start_main_~d2~0 (+ ULTIMATE.start_main_~d1old~0 1)))))) (and .cse10 .cse11 (<= ULTIMATE.start_main_~x~0 2147483347) .cse12 .cse2 .cse13 .cse3 .cse4) (and .cse1 .cse14 (<= 73 ULTIMATE.start_main_~d1old~0) .cse15 .cse16 .cse17 (<= ULTIMATE.start_main_~d1old~0 73) (<= .cse7 2147483648)) (and (<= .cse7 2147483575) .cse1 .cse18 .cse19 .cse16 .cse20 .cse17 .cse21) (and .cse11 .cse13 .cse18 (<= .cse6 2147483499) .cse19 .cse4 .cse20 .cse21) (and .cse10 .cse12 .cse0 .cse2 .cse3 (<= ULTIMATE.start_main_~x~0 2147483270) .cse4 .cse5) (and (<= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~d1~0 2147483574)) (<= 73 ULTIMATE.start_main_~d1~0) .cse14 (<= ULTIMATE.start_main_~d1~0 73) .cse15)))) [2020-11-30 01:10:22,663 INFO L274 CegarLoopResult]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2020-11-30 01:10:22,673 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,674 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] [2020-11-30 01:10:22,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] [2020-11-30 01:10:22,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] [2020-11-30 01:10:22,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,701 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] [2020-11-30 01:10:22,701 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] [2020-11-30 01:10:22,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] [2020-11-30 01:10:22,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:10:22 BoogieIcfgContainer [2020-11-30 01:10:22,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:10:22,710 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:10:22,710 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:10:22,710 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:10:22,711 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:01:37" (3/4) ... [2020-11-30 01:10:22,715 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:10:22,729 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 01:10:22,729 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 01:10:22,750 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((d1 <= 79 && d2 <= 80) && 0 <= d1\old + x) && 78 <= d2) && 77 <= d1\old) && 1 <= d2 + x) && d1\old <= 79) && 79 <= d1) && x <= 2147483191) || (((((((((d1\old <= 2147483645 && d1\old + x <= 2147483191) && 0 <= d1\old + x) && 78 <= d2) && d1 <= 2147483645) && 77 <= d1\old) && 1 <= d2 + x) && d2 + x <= 2147483192) && 79 <= d1) && (\exists ULTIMATE.start_main_~d1\old~0 : int, v_ULTIMATE.start_main_~d1~0_12 : int, aux_div_v_ULTIMATE.start_main_~x~0_31_89 : int :: (((ULTIMATE.start_main_~d1\old~0 + x + v_ULTIMATE.start_main_~d1~0_12 + aux_div_v_ULTIMATE.start_main_~x~0_31_89 < 2147483640 && 2 * ULTIMATE.start_main_~d1\old~0 + x + aux_div_v_ULTIMATE.start_main_~x~0_31_89 < 2147483644) && ULTIMATE.start_main_~d1\old~0 + x < v_ULTIMATE.start_main_~d1~0_12 + 2 * aux_div_v_ULTIMATE.start_main_~x~0_31_89 + 4294967291) && 2 * ULTIMATE.start_main_~d1\old~0 + x < 2 * v_ULTIMATE.start_main_~d1~0_12 + 2 * aux_div_v_ULTIMATE.start_main_~x~0_31_89 + 4294967295) && d2 <= ULTIMATE.start_main_~d1\old~0 + 1))) || (((((((d2 <= 78 && d1 <= 77) && x <= 2147483347) && d1\old <= 77) && 78 <= d2) && 77 <= d1) && 77 <= d1\old) && 1 <= d2 + x)) || (((((((0 <= d1\old + x && 74 <= d2) && 73 <= d1\old) && d2 <= 74) && d1 <= 75) && 75 <= d1) && d1\old <= 73) && d2 + x <= 2147483648)) || (((((((d2 + x <= 2147483575 && 0 <= d1\old + x) && 75 <= d1\old) && d2 <= 76) && d1 <= 75) && d1\old <= 75) && 75 <= d1) && 76 <= d2)) || (((((((d1 <= 77 && 77 <= d1) && 75 <= d1\old) && d1\old + x <= 2147483499) && d2 <= 76) && 1 <= d2 + x) && d1\old <= 75) && 76 <= d2)) || (((((((d2 <= 78 && d1\old <= 77) && d1 <= 79) && 78 <= d2) && 77 <= d1\old) && x <= 2147483270) && 1 <= d2 + x) && 79 <= d1)) || ((((x <= d1 + 2147483574 && 73 <= d1) && 74 <= d2) && d1 <= 73) && d2 <= 74) [2020-11-30 01:10:22,757 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f2ecb3dd-2dec-43a4-b98e-4181b8b680a7/bin/uautomizer/witness.graphml [2020-11-30 01:10:22,757 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:10:22,758 INFO L168 Benchmark]: Toolchain (without parser) took 525862.18 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 58.4 MB in the beginning and 34.2 MB in the end (delta: 24.3 MB). Peak memory consumption was 68.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:10:22,759 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory was 47.2 MB in the beginning and 47.1 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:10:22,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.37 ms. Allocated memory is still 90.2 MB. Free memory was 58.3 MB in the beginning and 68.6 MB in the end (delta: -10.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:10:22,760 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.87 ms. Allocated memory is still 90.2 MB. Free memory was 68.6 MB in the beginning and 67.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:10:22,760 INFO L168 Benchmark]: Boogie Preprocessor took 19.00 ms. Allocated memory is still 90.2 MB. Free memory was 67.2 MB in the beginning and 66.5 MB in the end (delta: 737.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:10:22,760 INFO L168 Benchmark]: RCFGBuilder took 312.28 ms. Allocated memory is still 90.2 MB. Free memory was 66.5 MB in the beginning and 57.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:10:22,761 INFO L168 Benchmark]: TraceAbstraction took 525214.53 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 56.7 MB in the beginning and 37.3 MB in the end (delta: 19.4 MB). Peak memory consumption was 74.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:10:22,761 INFO L168 Benchmark]: Witness Printer took 47.46 ms. Allocated memory is still 136.3 MB. Free memory was 37.3 MB in the beginning and 34.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:10:22,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory was 47.2 MB in the beginning and 47.1 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 208.37 ms. Allocated memory is still 90.2 MB. Free memory was 58.3 MB in the beginning and 68.6 MB in the end (delta: -10.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.87 ms. Allocated memory is still 90.2 MB. Free memory was 68.6 MB in the beginning and 67.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.00 ms. Allocated memory is still 90.2 MB. Free memory was 67.2 MB in the beginning and 66.5 MB in the end (delta: 737.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 312.28 ms. Allocated memory is still 90.2 MB. Free memory was 66.5 MB in the beginning and 57.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 525214.53 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 56.7 MB in the beginning and 37.3 MB in the end (delta: 19.4 MB). Peak memory consumption was 74.0 MB. Max. memory is 16.1 GB. * Witness Printer took 47.46 ms. Allocated memory is still 136.3 MB. Free memory was 37.3 MB in the beginning and 34.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant [2020-11-30 01:10:22,774 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,775 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] [2020-11-30 01:10:22,775 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,775 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,775 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,776 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,776 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] [2020-11-30 01:10:22,776 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,776 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,776 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] [2020-11-30 01:10:22,777 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,777 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,779 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,780 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] [2020-11-30 01:10:22,780 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,780 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] [2020-11-30 01:10:22,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] [2020-11-30 01:10:22,782 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~d1~0_12,QUANTIFIED] [2020-11-30 01:10:22,782 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_ULTIMATE.start_main_~x~0_31_89,QUANTIFIED] [2020-11-30 01:10:22,782 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~d1old~0,QUANTIFIED] Derived loop invariant: ((((((((((((((d1 <= 79 && d2 <= 80) && 0 <= d1\old + x) && 78 <= d2) && 77 <= d1\old) && 1 <= d2 + x) && d1\old <= 79) && 79 <= d1) && x <= 2147483191) || (((((((((d1\old <= 2147483645 && d1\old + x <= 2147483191) && 0 <= d1\old + x) && 78 <= d2) && d1 <= 2147483645) && 77 <= d1\old) && 1 <= d2 + x) && d2 + x <= 2147483192) && 79 <= d1) && (\exists ULTIMATE.start_main_~d1\old~0 : int, v_ULTIMATE.start_main_~d1~0_12 : int, aux_div_v_ULTIMATE.start_main_~x~0_31_89 : int :: (((ULTIMATE.start_main_~d1\old~0 + x + v_ULTIMATE.start_main_~d1~0_12 + aux_div_v_ULTIMATE.start_main_~x~0_31_89 < 2147483640 && 2 * ULTIMATE.start_main_~d1\old~0 + x + aux_div_v_ULTIMATE.start_main_~x~0_31_89 < 2147483644) && ULTIMATE.start_main_~d1\old~0 + x < v_ULTIMATE.start_main_~d1~0_12 + 2 * aux_div_v_ULTIMATE.start_main_~x~0_31_89 + 4294967291) && 2 * ULTIMATE.start_main_~d1\old~0 + x < 2 * v_ULTIMATE.start_main_~d1~0_12 + 2 * aux_div_v_ULTIMATE.start_main_~x~0_31_89 + 4294967295) && d2 <= ULTIMATE.start_main_~d1\old~0 + 1))) || (((((((d2 <= 78 && d1 <= 77) && x <= 2147483347) && d1\old <= 77) && 78 <= d2) && 77 <= d1) && 77 <= d1\old) && 1 <= d2 + x)) || (((((((0 <= d1\old + x && 74 <= d2) && 73 <= d1\old) && d2 <= 74) && d1 <= 75) && 75 <= d1) && d1\old <= 73) && d2 + x <= 2147483648)) || (((((((d2 + x <= 2147483575 && 0 <= d1\old + x) && 75 <= d1\old) && d2 <= 76) && d1 <= 75) && d1\old <= 75) && 75 <= d1) && 76 <= d2)) || (((((((d1 <= 77 && 77 <= d1) && 75 <= d1\old) && d1\old + x <= 2147483499) && d2 <= 76) && 1 <= d2 + x) && d1\old <= 75) && 76 <= d2)) || (((((((d2 <= 78 && d1\old <= 77) && d1 <= 79) && 78 <= d2) && 77 <= d1\old) && x <= 2147483270) && 1 <= d2 + x) && 79 <= d1)) || ((((x <= d1 + 2147483574 && 73 <= d1) && 74 <= d2) && d1 <= 73) && d2 <= 74) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 504.1s, OverallIterations: 28, TraceHistogramMax: 12, AutomataDifference: 448.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 20.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 201 SDtfs, 1295 SDslu, 426 SDs, 0 SdLazy, 2993 SolverSat, 798 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 30.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1149 GetRequests, 663 SyntacticMatches, 0 SemanticMatches, 486 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 4071 ImplicationChecksByTransitivity, 463.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 28 MinimizatonAttempts, 112 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 17 NumberOfFragments, 275 HoareAnnotationTreeSize, 2 FomulaSimplifications, 54512 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 2 FomulaSimplificationsInter, 18126 FormulaSimplificationTreeSizeReductionInter, 20.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 50.0s InterpolantComputationTime, 1558 NumberOfCodeBlocks, 1544 NumberOfCodeBlocksAsserted, 102 NumberOfCheckSat, 1509 ConstructedInterpolants, 34 QuantifiedInterpolants, 322738 SizeOfPredicates, 160 NumberOfNonLiveVariables, 1727 ConjunctsInSsa, 235 ConjunctsInUnsatCore, 49 InterpolantComputations, 8 PerfectInterpolantSequences, 246/4569 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...