./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/McCarthy91-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/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 32bit --witnessprinter.graph.data.programhash 3e87f89409ab3e763661ad617b0dadcb988e72d1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:09:25,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:09:25,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:09:25,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:09:25,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:09:25,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:09:25,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:09:25,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:09:25,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:09:25,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:09:25,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:09:25,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:09:25,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:09:25,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:09:25,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:09:25,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:09:25,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:09:25,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:09:25,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:09:25,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:09:25,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:09:25,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:09:25,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:09:25,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:09:25,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:09:25,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:09:25,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:09:25,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:09:25,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:09:25,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:09:25,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:09:25,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:09:25,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:09:25,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:09:25,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:09:25,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:09:25,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:09:25,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:09:25,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:09:25,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:09:25,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:09:25,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-29 19:09:25,446 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:09:25,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:09:25,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:09:25,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:09:25,449 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:09:25,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:09:25,450 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:09:25,450 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:09:25,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:09:25,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:09:25,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:09:25,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:09:25,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:09:25,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:09:25,452 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 19:09:25,453 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:09:25,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:09:25,453 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:09:25,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:09:25,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:09:25,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:09:25,454 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:09:25,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:09:25,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:09:25,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:09:25,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:09:25,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:09:25,456 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:09:25,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:09:25,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:09:25,457 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:09:25,458 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_22ceeb03-390c-476e-9a1a-7141cef11ce6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e87f89409ab3e763661ad617b0dadcb988e72d1 [2020-11-29 19:09:25,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:09:25,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:09:25,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:09:25,843 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:09:25,844 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:09:25,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/bin/uautomizer/../../sv-benchmarks/c/recursive/McCarthy91-2.c [2020-11-29 19:09:25,958 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/bin/uautomizer/data/f4d3a657d/258c52dc3f6f4084b4a61e2a16480a6a/FLAG878ec19af [2020-11-29 19:09:26,687 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:09:26,688 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/sv-benchmarks/c/recursive/McCarthy91-2.c [2020-11-29 19:09:26,696 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/bin/uautomizer/data/f4d3a657d/258c52dc3f6f4084b4a61e2a16480a6a/FLAG878ec19af [2020-11-29 19:09:27,034 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/bin/uautomizer/data/f4d3a657d/258c52dc3f6f4084b4a61e2a16480a6a [2020-11-29 19:09:27,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:09:27,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:09:27,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:09:27,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:09:27,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:09:27,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:09:27" (1/1) ... [2020-11-29 19:09:27,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@177cd3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:27, skipping insertion in model container [2020-11-29 19:09:27,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:09:27" (1/1) ... [2020-11-29 19:09:27,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:09:27,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:09:27,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:09:27,286 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:09:27,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:09:27,326 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:09:27,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:27 WrapperNode [2020-11-29 19:09:27,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:09:27,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:09:27,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:09:27,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:09:27,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:27" (1/1) ... [2020-11-29 19:09:27,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:27" (1/1) ... [2020-11-29 19:09:27,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:09:27,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:09:27,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:09:27,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:09:27,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:27" (1/1) ... [2020-11-29 19:09:27,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:27" (1/1) ... [2020-11-29 19:09:27,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:27" (1/1) ... [2020-11-29 19:09:27,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:27" (1/1) ... [2020-11-29 19:09:27,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:27" (1/1) ... [2020-11-29 19:09:27,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:27" (1/1) ... [2020-11-29 19:09:27,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:27" (1/1) ... [2020-11-29 19:09:27,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:09:27,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:09:27,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:09:27,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:09:27,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:09:27,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:09:27,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:09:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:09:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:09:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2020-11-29 19:09:27,507 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2020-11-29 19:09:27,866 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:09:27,867 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 19:09:27,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:27 BoogieIcfgContainer [2020-11-29 19:09:27,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:09:27,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:09:27,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:09:27,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:09:27,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:09:27" (1/3) ... [2020-11-29 19:09:27,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50507e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:09:27, skipping insertion in model container [2020-11-29 19:09:27,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:27" (2/3) ... [2020-11-29 19:09:27,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50507e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:09:27, skipping insertion in model container [2020-11-29 19:09:27,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:27" (3/3) ... [2020-11-29 19:09:27,909 INFO L111 eAbstractionObserver]: Analyzing ICFG McCarthy91-2.c [2020-11-29 19:09:27,924 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:09:27,930 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-11-29 19:09:27,945 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-29 19:09:27,977 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:09:27,977 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:09:27,978 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:09:27,978 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:09:27,978 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:09:27,978 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:09:27,979 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:09:27,979 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:09:28,016 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-29 19:09:28,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:09:28,022 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:28,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:09:28,023 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:09:28,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:28,031 INFO L82 PathProgramCache]: Analyzing trace with hash 890933714, now seen corresponding path program 1 times [2020-11-29 19:09:28,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:28,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119716095] [2020-11-29 19:09:28,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:28,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:28,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119716095] [2020-11-29 19:09:28,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:28,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:09:28,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942610727] [2020-11-29 19:09:28,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:09:28,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:28,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:09:28,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:09:28,435 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-11-29 19:09:28,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:28,713 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2020-11-29 19:09:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:09:28,715 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2020-11-29 19:09:28,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:28,728 INFO L225 Difference]: With dead ends: 54 [2020-11-29 19:09:28,728 INFO L226 Difference]: Without dead ends: 42 [2020-11-29 19:09:28,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:09:28,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-29 19:09:28,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2020-11-29 19:09:28,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-29 19:09:28,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-11-29 19:09:28,801 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 6 [2020-11-29 19:09:28,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:28,801 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-11-29 19:09:28,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:09:28,802 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2020-11-29 19:09:28,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:09:28,802 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:28,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:09:28,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:09:28,803 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:09:28,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:28,805 INFO L82 PathProgramCache]: Analyzing trace with hash 890933874, now seen corresponding path program 1 times [2020-11-29 19:09:28,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:28,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982748315] [2020-11-29 19:09:28,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:28,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:28,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982748315] [2020-11-29 19:09:28,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:28,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:09:28,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597853057] [2020-11-29 19:09:28,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:09:28,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:28,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:09:28,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:09:28,880 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 3 states. [2020-11-29 19:09:28,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:28,927 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2020-11-29 19:09:28,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:09:28,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-29 19:09:28,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:28,933 INFO L225 Difference]: With dead ends: 41 [2020-11-29 19:09:28,933 INFO L226 Difference]: Without dead ends: 40 [2020-11-29 19:09:28,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:09:28,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-11-29 19:09:28,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2020-11-29 19:09:28,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-29 19:09:28,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2020-11-29 19:09:28,955 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 6 [2020-11-29 19:09:28,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:28,955 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2020-11-29 19:09:28,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:09:28,957 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2020-11-29 19:09:28,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 19:09:28,959 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:28,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:28,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:09:28,961 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:09:28,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:28,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1849141429, now seen corresponding path program 1 times [2020-11-29 19:09:28,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:28,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175218082] [2020-11-29 19:09:28,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:29,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:29,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175218082] [2020-11-29 19:09:29,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:29,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:09:29,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619794417] [2020-11-29 19:09:29,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:09:29,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:29,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:09:29,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:09:29,045 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 3 states. [2020-11-29 19:09:29,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:29,086 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2020-11-29 19:09:29,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:09:29,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-29 19:09:29,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:29,093 INFO L225 Difference]: With dead ends: 40 [2020-11-29 19:09:29,094 INFO L226 Difference]: Without dead ends: 39 [2020-11-29 19:09:29,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:09:29,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-29 19:09:29,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2020-11-29 19:09:29,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-29 19:09:29,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2020-11-29 19:09:29,120 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 7 [2020-11-29 19:09:29,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:29,122 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2020-11-29 19:09:29,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:09:29,122 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2020-11-29 19:09:29,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 19:09:29,124 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:29,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:29,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 19:09:29,127 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:09:29,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:29,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1849146394, now seen corresponding path program 1 times [2020-11-29 19:09:29,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:29,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218744385] [2020-11-29 19:09:29,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:29,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:29,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218744385] [2020-11-29 19:09:29,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:29,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:09:29,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988777976] [2020-11-29 19:09:29,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:09:29,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:29,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:09:29,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:09:29,225 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 5 states. [2020-11-29 19:09:29,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:29,365 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2020-11-29 19:09:29,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:09:29,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-11-29 19:09:29,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:29,367 INFO L225 Difference]: With dead ends: 51 [2020-11-29 19:09:29,368 INFO L226 Difference]: Without dead ends: 50 [2020-11-29 19:09:29,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:09:29,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-29 19:09:29,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2020-11-29 19:09:29,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-29 19:09:29,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2020-11-29 19:09:29,395 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 7 [2020-11-29 19:09:29,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:29,396 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2020-11-29 19:09:29,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:09:29,396 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2020-11-29 19:09:29,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:09:29,397 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:29,398 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:29,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 19:09:29,398 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:09:29,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:29,399 INFO L82 PathProgramCache]: Analyzing trace with hash -712030488, now seen corresponding path program 1 times [2020-11-29 19:09:29,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:29,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486878791] [2020-11-29 19:09:29,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:29,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:29,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486878791] [2020-11-29 19:09:29,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:29,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:09:29,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995088389] [2020-11-29 19:09:29,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:09:29,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:29,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:09:29,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:09:29,504 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand 5 states. [2020-11-29 19:09:29,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:29,645 INFO L93 Difference]: Finished difference Result 69 states and 83 transitions. [2020-11-29 19:09:29,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:09:29,645 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-29 19:09:29,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:29,647 INFO L225 Difference]: With dead ends: 69 [2020-11-29 19:09:29,648 INFO L226 Difference]: Without dead ends: 68 [2020-11-29 19:09:29,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:09:29,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-29 19:09:29,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 59. [2020-11-29 19:09:29,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-29 19:09:29,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2020-11-29 19:09:29,667 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 11 [2020-11-29 19:09:29,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:29,667 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2020-11-29 19:09:29,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:09:29,668 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2020-11-29 19:09:29,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 19:09:29,669 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:29,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:29,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 19:09:29,669 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:09:29,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:29,670 INFO L82 PathProgramCache]: Analyzing trace with hash -100890224, now seen corresponding path program 1 times [2020-11-29 19:09:29,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:29,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946996006] [2020-11-29 19:09:29,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:29,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-29 19:09:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:29,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946996006] [2020-11-29 19:09:29,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:29,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:09:29,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206410113] [2020-11-29 19:09:29,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:09:29,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:29,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:09:29,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:09:29,780 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand 4 states. [2020-11-29 19:09:29,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:29,808 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2020-11-29 19:09:29,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:09:29,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-29 19:09:29,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:29,812 INFO L225 Difference]: With dead ends: 59 [2020-11-29 19:09:29,812 INFO L226 Difference]: Without dead ends: 48 [2020-11-29 19:09:29,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:09:29,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-11-29 19:09:29,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-11-29 19:09:29,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-11-29 19:09:29,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2020-11-29 19:09:29,832 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 14 [2020-11-29 19:09:29,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:29,832 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2020-11-29 19:09:29,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:09:29,832 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2020-11-29 19:09:29,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 19:09:29,833 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:29,834 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:29,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 19:09:29,834 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:09:29,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:29,835 INFO L82 PathProgramCache]: Analyzing trace with hash 213464823, now seen corresponding path program 1 times [2020-11-29 19:09:29,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:29,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211126984] [2020-11-29 19:09:29,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:29,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-11-29 19:09:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 19:09:29,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211126984] [2020-11-29 19:09:29,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086233627] [2020-11-29 19:09:29,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:09:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:30,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 19:09:30,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:09:30,362 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:30,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 19:09:30,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2020-11-29 19:09:30,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752399268] [2020-11-29 19:09:30,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-29 19:09:30,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:30,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-29 19:09:30,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2020-11-29 19:09:30,365 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 15 states. [2020-11-29 19:09:30,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:30,882 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2020-11-29 19:09:30,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-29 19:09:30,883 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 19 [2020-11-29 19:09:30,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:30,884 INFO L225 Difference]: With dead ends: 71 [2020-11-29 19:09:30,884 INFO L226 Difference]: Without dead ends: 70 [2020-11-29 19:09:30,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2020-11-29 19:09:30,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-29 19:09:30,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 47. [2020-11-29 19:09:30,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-29 19:09:30,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2020-11-29 19:09:30,899 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 19 [2020-11-29 19:09:30,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:30,899 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2020-11-29 19:09:30,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-29 19:09:30,899 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2020-11-29 19:09:30,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 19:09:30,902 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:30,902 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:31,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-29 19:09:31,122 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:09:31,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:31,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1972520043, now seen corresponding path program 1 times [2020-11-29 19:09:31,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:31,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451182816] [2020-11-29 19:09:31,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:31,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-11-29 19:09:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:31,237 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 19:09:31,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451182816] [2020-11-29 19:09:31,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:31,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 19:09:31,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750009604] [2020-11-29 19:09:31,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 19:09:31,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:31,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 19:09:31,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:09:31,240 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 7 states. [2020-11-29 19:09:31,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:31,479 INFO L93 Difference]: Finished difference Result 99 states and 128 transitions. [2020-11-29 19:09:31,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 19:09:31,481 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-11-29 19:09:31,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:31,483 INFO L225 Difference]: With dead ends: 99 [2020-11-29 19:09:31,483 INFO L226 Difference]: Without dead ends: 98 [2020-11-29 19:09:31,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-11-29 19:09:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-11-29 19:09:31,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 89. [2020-11-29 19:09:31,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-29 19:09:31,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2020-11-29 19:09:31,531 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 109 transitions. Word has length 20 [2020-11-29 19:09:31,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:31,531 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 109 transitions. [2020-11-29 19:09:31,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 19:09:31,532 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2020-11-29 19:09:31,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-29 19:09:31,540 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:31,540 INFO L422 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:31,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 19:09:31,542 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:09:31,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:31,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1233206362, now seen corresponding path program 1 times [2020-11-29 19:09:31,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:09:31,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101490895] [2020-11-29 19:09:31,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:09:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:31,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-11-29 19:09:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:31,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-29 19:09:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:31,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 19:09:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:31,753 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-11-29 19:09:31,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101490895] [2020-11-29 19:09:31,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:31,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 19:09:31,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724673798] [2020-11-29 19:09:31,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 19:09:31,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:09:31,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 19:09:31,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-29 19:09:31,758 INFO L87 Difference]: Start difference. First operand 89 states and 109 transitions. Second operand 8 states. [2020-11-29 19:09:32,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:32,052 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2020-11-29 19:09:32,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-29 19:09:32,053 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2020-11-29 19:09:32,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:32,054 INFO L225 Difference]: With dead ends: 93 [2020-11-29 19:09:32,054 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:09:32,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2020-11-29 19:09:32,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:09:32,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:09:32,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:09:32,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:09:32,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2020-11-29 19:09:32,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:32,058 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:09:32,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 19:09:32,059 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:09:32,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:09:32,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 19:09:32,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:09:32,403 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 27 [2020-11-29 19:09:32,518 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2020-11-29 19:09:32,518 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:09:32,518 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-11-29 19:09:32,518 INFO L274 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed. [2020-11-29 19:09:32,518 INFO L274 CegarLoopResult]: For program point L29-3(line 29) no Hoare annotation was computed. [2020-11-29 19:09:32,518 INFO L274 CegarLoopResult]: For program point L29-4(line 29) no Hoare annotation was computed. [2020-11-29 19:09:32,519 INFO L274 CegarLoopResult]: For program point L29-6(line 29) no Hoare annotation was computed. [2020-11-29 19:09:32,519 INFO L274 CegarLoopResult]: For program point L29-7(lines 29 33) no Hoare annotation was computed. [2020-11-29 19:09:32,519 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 19:09:32,519 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-29 19:09:32,519 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:09:32,519 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2020-11-29 19:09:32,519 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:09:32,519 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:09:32,519 INFO L270 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) [2020-11-29 19:09:32,520 INFO L274 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2020-11-29 19:09:32,520 INFO L270 CegarLoopResult]: At program point L26(lines 26 34) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2020-11-29 19:09:32,520 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-11-29 19:09:32,520 INFO L274 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-11-29 19:09:32,520 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-11-29 19:09:32,520 INFO L270 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (let ((.cse0 (= f91_~x |f91_#in~x|))) (and (or (not (<= 0 (+ |f91_#in~x| 2147483648))) .cse0 (not (<= |f91_#in~x| 2147483647))) (or (and (<= f91_~x 100) .cse0) (not (<= |f91_#in~x| 2147483648)) (not (<= 91 |f91_#in~x|))))) [2020-11-29 19:09:32,520 INFO L274 CegarLoopResult]: For program point f91EXIT(lines 17 23) no Hoare annotation was computed. [2020-11-29 19:09:32,521 INFO L274 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-11-29 19:09:32,521 INFO L274 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-11-29 19:09:32,521 INFO L274 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed. [2020-11-29 19:09:32,521 INFO L270 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: (let ((.cse0 (= f91_~x |f91_#in~x|))) (and (or (not (<= 0 (+ |f91_#in~x| 2147483648))) (and (<= 91 |f91_#t~ret7|) .cse0 (<= |f91_#t~ret7| 2147483648)) (not (<= |f91_#in~x| 2147483647))) (or (and (<= f91_~x 100) .cse0) (not (<= |f91_#in~x| 2147483648)) (not (<= 91 |f91_#in~x|))))) [2020-11-29 19:09:32,521 INFO L274 CegarLoopResult]: For program point L21-5(line 21) no Hoare annotation was computed. [2020-11-29 19:09:32,521 INFO L274 CegarLoopResult]: For program point f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-11-29 19:09:32,522 INFO L277 CegarLoopResult]: At program point f91ENTRY(lines 17 23) the Hoare annotation is: true [2020-11-29 19:09:32,522 INFO L274 CegarLoopResult]: For program point f91FINAL(lines 17 23) no Hoare annotation was computed. [2020-11-29 19:09:32,522 INFO L274 CegarLoopResult]: For program point f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-11-29 19:09:32,522 INFO L274 CegarLoopResult]: For program point f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-11-29 19:09:32,522 INFO L274 CegarLoopResult]: For program point f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-11-29 19:09:32,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:09:32 BoogieIcfgContainer [2020-11-29 19:09:32,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:09:32,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:09:32,538 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:09:32,538 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:09:32,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:27" (3/4) ... [2020-11-29 19:09:32,542 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:09:32,548 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f91 [2020-11-29 19:09:32,554 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-29 19:09:32,554 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 19:09:32,554 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:09:32,555 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:09:32,615 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_22ceeb03-390c-476e-9a1a-7141cef11ce6/bin/uautomizer/witness.graphml [2020-11-29 19:09:32,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:09:32,617 INFO L168 Benchmark]: Toolchain (without parser) took 5577.47 ms. Allocated memory was 88.1 MB in the beginning and 132.1 MB in the end (delta: 44.0 MB). Free memory was 59.0 MB in the beginning and 99.3 MB in the end (delta: -40.4 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:32,617 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 88.1 MB. Free memory was 45.1 MB in the beginning and 45.1 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:09:32,618 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.59 ms. Allocated memory is still 88.1 MB. Free memory was 58.8 MB in the beginning and 67.1 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:32,618 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.26 ms. Allocated memory is still 88.1 MB. Free memory was 67.1 MB in the beginning and 65.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:09:32,619 INFO L168 Benchmark]: Boogie Preprocessor took 25.24 ms. Allocated memory is still 88.1 MB. Free memory was 65.7 MB in the beginning and 64.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:32,620 INFO L168 Benchmark]: RCFGBuilder took 450.27 ms. Allocated memory is still 88.1 MB. Free memory was 64.6 MB in the beginning and 51.4 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:32,620 INFO L168 Benchmark]: TraceAbstraction took 4650.87 ms. Allocated memory was 88.1 MB in the beginning and 132.1 MB in the end (delta: 44.0 MB). Free memory was 51.0 MB in the beginning and 102.5 MB in the end (delta: -51.4 MB). Peak memory consumption was 61.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:32,621 INFO L168 Benchmark]: Witness Printer took 78.01 ms. Allocated memory is still 132.1 MB. Free memory was 102.5 MB in the beginning and 99.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:32,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 88.1 MB. Free memory was 45.1 MB in the beginning and 45.1 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 294.59 ms. Allocated memory is still 88.1 MB. Free memory was 58.8 MB in the beginning and 67.1 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.26 ms. Allocated memory is still 88.1 MB. Free memory was 67.1 MB in the beginning and 65.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.24 ms. Allocated memory is still 88.1 MB. Free memory was 65.7 MB in the beginning and 64.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 450.27 ms. Allocated memory is still 88.1 MB. Free memory was 64.6 MB in the beginning and 51.4 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4650.87 ms. Allocated memory was 88.1 MB in the beginning and 132.1 MB in the end (delta: 44.0 MB). Free memory was 51.0 MB in the beginning and 102.5 MB in the end (delta: -51.4 MB). Peak memory consumption was 61.1 MB. Max. memory is 16.1 GB. * Witness Printer took 78.01 ms. Allocated memory is still 132.1 MB. Free memory was 102.5 MB in the beginning and 99.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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: 26]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 9, TraceHistogramMax: 7, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 186 SDtfs, 222 SDslu, 325 SDs, 0 SdLazy, 457 SolverSat, 92 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 57 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 59 PreInvPairs, 60 NumberOfFragments, 82 HoareAnnotationTreeSize, 59 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 314 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 6594 SizeOfPredicates, 4 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 94/102 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...