./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d0dd826da977145676f85980fecf0ec40390b47 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:06:01,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:06:01,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:06:02,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:06:02,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:06:02,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:06:02,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:06:02,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:06:02,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:06:02,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:06:02,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:06:02,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:06:02,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:06:02,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:06:02,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:06:02,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:06:02,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:06:02,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:06:02,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:06:02,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:06:02,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:06:02,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:06:02,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:06:02,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:06:02,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:06:02,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:06:02,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:06:02,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:06:02,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:06:02,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:06:02,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:06:02,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:06:02,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:06:02,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:06:02,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:06:02,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:06:02,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:06:02,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:06:02,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:06:02,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:06:02,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:06:02,115 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:06:02,158 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:06:02,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:06:02,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:06:02,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:06:02,164 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:06:02,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:06:02,165 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:06:02,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:06:02,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:06:02,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:06:02,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:06:02,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:06:02,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:06:02,171 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:06:02,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:06:02,171 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:06:02,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:06:02,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:06:02,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:06:02,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:06:02,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:06:02,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:06:02,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:06:02,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:06:02,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:06:02,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:06:02,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:06:02,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:06:02,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:06:02,174 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_55612166-d853-4733-87bb-44c924563711/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0dd826da977145676f85980fecf0ec40390b47 [2020-11-29 22:06:02,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:06:02,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:06:02,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:06:02,451 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:06:02,452 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:06:02,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i [2020-11-29 22:06:02,532 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer/data/102883e65/59f2239bf000445dae2376980af5e615/FLAGbaea6a210 [2020-11-29 22:06:03,048 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:06:03,049 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i [2020-11-29 22:06:03,054 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer/data/102883e65/59f2239bf000445dae2376980af5e615/FLAGbaea6a210 [2020-11-29 22:06:03,439 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer/data/102883e65/59f2239bf000445dae2376980af5e615 [2020-11-29 22:06:03,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:06:03,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:06:03,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:06:03,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:06:03,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:06:03,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:06:03" (1/1) ... [2020-11-29 22:06:03,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@187eea4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:06:03, skipping insertion in model container [2020-11-29 22:06:03,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:06:03" (1/1) ... [2020-11-29 22:06:03,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:06:03,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:06:03,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:06:03,773 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:06:03,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:06:03,817 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:06:03,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:06:03 WrapperNode [2020-11-29 22:06:03,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:06:03,819 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:06:03,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:06:03,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:06:03,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:06:03" (1/1) ... [2020-11-29 22:06:03,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:06:03" (1/1) ... [2020-11-29 22:06:03,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:06:03,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:06:03,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:06:03,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:06:03,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:06:03" (1/1) ... [2020-11-29 22:06:03,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:06:03" (1/1) ... [2020-11-29 22:06:03,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:06:03" (1/1) ... [2020-11-29 22:06:03,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:06:03" (1/1) ... [2020-11-29 22:06:03,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:06:03" (1/1) ... [2020-11-29 22:06:03,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:06:03" (1/1) ... [2020-11-29 22:06:03,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:06:03" (1/1) ... [2020-11-29 22:06:03,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:06:03,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:06:03,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:06:03,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:06:03,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:06:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/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 22:06:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:06:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:06:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:06:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:06:04,339 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:06:04,339 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 22:06:04,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:06:04 BoogieIcfgContainer [2020-11-29 22:06:04,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:06:04,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:06:04,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:06:04,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:06:04,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:06:03" (1/3) ... [2020-11-29 22:06:04,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7548a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:06:04, skipping insertion in model container [2020-11-29 22:06:04,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:06:03" (2/3) ... [2020-11-29 22:06:04,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7548a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:06:04, skipping insertion in model container [2020-11-29 22:06:04,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:06:04" (3/3) ... [2020-11-29 22:06:04,349 INFO L111 eAbstractionObserver]: Analyzing ICFG divbin2_valuebound1.i [2020-11-29 22:06:04,359 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:06:04,363 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-29 22:06:04,374 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 22:06:04,398 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:06:04,398 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:06:04,398 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:06:04,398 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:06:04,398 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:06:04,398 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:06:04,398 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:06:04,399 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:06:04,411 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-11-29 22:06:04,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:06:04,416 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:06:04,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:06:04,417 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:06:04,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:06:04,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1104570084, now seen corresponding path program 1 times [2020-11-29 22:06:04,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:06:04,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903208479] [2020-11-29 22:06:04,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:06:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:06:04,560 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 22:06:04,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903208479] [2020-11-29 22:06:04,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:06:04,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:06:04,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609232487] [2020-11-29 22:06:04,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:06:04,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:06:04,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:06:04,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:06:04,583 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2020-11-29 22:06:04,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:06:04,598 INFO L93 Difference]: Finished difference Result 45 states and 66 transitions. [2020-11-29 22:06:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:06:04,599 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 22:06:04,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:06:04,607 INFO L225 Difference]: With dead ends: 45 [2020-11-29 22:06:04,607 INFO L226 Difference]: Without dead ends: 20 [2020-11-29 22:06:04,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:06:04,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-29 22:06:04,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-29 22:06:04,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-29 22:06:04,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2020-11-29 22:06:04,642 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 10 [2020-11-29 22:06:04,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:06:04,642 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2020-11-29 22:06:04,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:06:04,643 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-11-29 22:06:04,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:06:04,644 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:06:04,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:06:04,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:06:04,645 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:06:04,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:06:04,648 INFO L82 PathProgramCache]: Analyzing trace with hash -2096849699, now seen corresponding path program 1 times [2020-11-29 22:06:04,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:06:04,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725024685] [2020-11-29 22:06:04,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:06:04,681 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 22:06:04,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451455020] [2020-11-29 22:06:04,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/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 22:06:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:06:04,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 22:06:04,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:06:04,836 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 22:06:04,836 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:06:04,933 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 22:06:04,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725024685] [2020-11-29 22:06:04,933 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 22:06:04,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451455020] [2020-11-29 22:06:04,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:06:04,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 22:06:04,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745615878] [2020-11-29 22:06:04,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:06:04,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:06:04,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:06:04,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:06:04,937 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 6 states. [2020-11-29 22:06:05,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:06:05,197 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2020-11-29 22:06:05,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:06:05,198 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-29 22:06:05,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:06:05,199 INFO L225 Difference]: With dead ends: 35 [2020-11-29 22:06:05,199 INFO L226 Difference]: Without dead ends: 25 [2020-11-29 22:06:05,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:06:05,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-29 22:06:05,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2020-11-29 22:06:05,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-29 22:06:05,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2020-11-29 22:06:05,205 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 11 [2020-11-29 22:06:05,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:06:05,205 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2020-11-29 22:06:05,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:06:05,205 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-11-29 22:06:05,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 22:06:05,206 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:06:05,206 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:06:05,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-29 22:06:05,407 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:06:05,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:06:05,408 INFO L82 PathProgramCache]: Analyzing trace with hash 2120747147, now seen corresponding path program 1 times [2020-11-29 22:06:05,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:06:05,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689177265] [2020-11-29 22:06:05,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:06:05,427 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 22:06:05,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [792713083] [2020-11-29 22:06:05,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:06:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:06:05,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 22:06:05,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:06:05,518 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 22:06:05,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689177265] [2020-11-29 22:06:05,518 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 22:06:05,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792713083] [2020-11-29 22:06:05,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:06:05,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:06:05,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040578230] [2020-11-29 22:06:05,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:06:05,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:06:05,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:06:05,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:06:05,521 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 3 states. [2020-11-29 22:06:05,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:06:05,559 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2020-11-29 22:06:05,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:06:05,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-11-29 22:06:05,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:06:05,561 INFO L225 Difference]: With dead ends: 42 [2020-11-29 22:06:05,561 INFO L226 Difference]: Without dead ends: 25 [2020-11-29 22:06:05,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 1 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 22:06:05,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-29 22:06:05,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-29 22:06:05,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 22:06:05,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-11-29 22:06:05,581 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 15 [2020-11-29 22:06:05,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:06:05,581 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-11-29 22:06:05,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:06:05,581 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-11-29 22:06:05,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 22:06:05,582 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:06:05,584 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:06:05,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:06:05,785 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:06:05,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:06:05,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1911850598, now seen corresponding path program 1 times [2020-11-29 22:06:05,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:06:05,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585327130] [2020-11-29 22:06:05,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:06:05,801 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 22:06:05,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1507977793] [2020-11-29 22:06:05,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/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 [2020-11-29 22:06:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:06:05,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 29 conjunts are in the unsatisfiable core [2020-11-29 22:06:05,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:06:05,885 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 22:06:05,885 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:06:06,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:06:06,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585327130] [2020-11-29 22:06:06,103 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 22:06:06,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507977793] [2020-11-29 22:06:06,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:06:06,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-29 22:06:06,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260783826] [2020-11-29 22:06:06,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 22:06:06,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:06:06,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 22:06:06,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:06:06,106 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 9 states. [2020-11-29 22:06:08,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:06:08,694 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2020-11-29 22:06:08,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 22:06:08,695 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-11-29 22:06:08,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:06:08,695 INFO L225 Difference]: With dead ends: 52 [2020-11-29 22:06:08,696 INFO L226 Difference]: Without dead ends: 31 [2020-11-29 22:06:08,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-11-29 22:06:08,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-29 22:06:08,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2020-11-29 22:06:08,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 22:06:08,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-11-29 22:06:08,702 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 17 [2020-11-29 22:06:08,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:06:08,702 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-11-29 22:06:08,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 22:06:08,727 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-11-29 22:06:08,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 22:06:08,727 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:06:08,728 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:06:08,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:06:08,947 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:06:08,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:06:08,947 INFO L82 PathProgramCache]: Analyzing trace with hash 952501652, now seen corresponding path program 2 times [2020-11-29 22:06:08,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:06:08,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970508472] [2020-11-29 22:06:08,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:06:08,961 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 22:06:08,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1382318876] [2020-11-29 22:06:08,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:06:09,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 22:06:09,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 22:06:09,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 22:06:09,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:06:09,154 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:06:09,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970508472] [2020-11-29 22:06:09,154 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 22:06:09,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382318876] [2020-11-29 22:06:09,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:06:09,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-29 22:06:09,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291474975] [2020-11-29 22:06:09,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:06:09,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:06:09,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:06:09,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:06:09,161 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2020-11-29 22:06:09,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:06:09,200 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-11-29 22:06:09,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:06:09,202 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-11-29 22:06:09,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:06:09,202 INFO L225 Difference]: With dead ends: 29 [2020-11-29 22:06:09,202 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 22:06:09,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:06:09,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 22:06:09,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 22:06:09,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 22:06:09,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:06:09,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-29 22:06:09,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:06:09,204 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:06:09,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:06:09,204 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:06:09,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 22:06:09,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:06:09,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 22:06:09,615 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2020-11-29 22:06:09,889 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-11-29 22:06:09,892 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 22:06:09,892 INFO L274 CegarLoopResult]: For program point L19(lines 19 22) no Hoare annotation was computed. [2020-11-29 22:06:09,893 INFO L270 CegarLoopResult]: At program point L19-1(line 40) the Hoare annotation is: (let ((.cse5 (* ULTIMATE.start_main_~B~0 2)) (.cse1 (mod ULTIMATE.start_main_~b~0 4294967296)) (.cse7 (= ULTIMATE.start_main_~B~0 1)) (.cse8 (<= (mod ULTIMATE.start_main_~A~0 4294967296) 1)) (.cse2 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (= ULTIMATE.start_main_~q~0 0)) (.cse4 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse6 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (let ((.cse0 (mod ULTIMATE.start_main_~r~0 4294967296))) (and (= ULTIMATE.start_main_~b~0 2) (< .cse0 .cse1) (<= 1 .cse0) .cse2 .cse3 .cse4 (= .cse5 ULTIMATE.start_main_~b~0) .cse6)) (let ((.cse9 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~b~0))) (and (= ULTIMATE.start_main_~q~0 1) .cse7 .cse8 .cse2 (= ULTIMATE.start_main_~A~0 .cse9) .cse4 (= (div (mod .cse5 4294967296) 2) ULTIMATE.start_main_~b~0) (<= .cse1 (mod .cse9 4294967296)))) (and .cse7 .cse8 .cse2 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~b~0) .cse3 .cse4 .cse6))) [2020-11-29 22:06:09,893 INFO L274 CegarLoopResult]: For program point L19-2(lines 19 22) no Hoare annotation was computed. [2020-11-29 22:06:09,893 INFO L277 CegarLoopResult]: At program point L19-3(lines 18 24) the Hoare annotation is: true [2020-11-29 22:06:09,893 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-29 22:06:09,893 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 22:06:09,893 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 22:06:09,893 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 22:06:09,894 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 22:06:09,894 INFO L274 CegarLoopResult]: For program point L20(lines 20 21) no Hoare annotation was computed. [2020-11-29 22:06:09,894 INFO L274 CegarLoopResult]: For program point L20-1(lines 20 21) no Hoare annotation was computed. [2020-11-29 22:06:09,894 INFO L277 CegarLoopResult]: At program point L49(lines 25 50) the Hoare annotation is: true [2020-11-29 22:06:09,894 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-11-29 22:06:09,894 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 22:06:09,894 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-29 22:06:09,894 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-29 22:06:09,894 INFO L274 CegarLoopResult]: For program point L12-6(line 12) no Hoare annotation was computed. [2020-11-29 22:06:09,894 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 22:06:09,895 INFO L274 CegarLoopResult]: For program point L38-1(lines 38 47) no Hoare annotation was computed. [2020-11-29 22:06:09,895 INFO L270 CegarLoopResult]: At program point L34-2(lines 34 37) the Hoare annotation is: (let ((.cse0 (<= (mod ULTIMATE.start_main_~A~0 4294967296) 1)) (.cse1 (= ULTIMATE.start_main_~q~0 0)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse3 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (and .cse0 (= ULTIMATE.start_main_~b~0 2) (<= 1 (mod ULTIMATE.start_main_~r~0 4294967296)) .cse1 .cse2 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~b~0) .cse3) (and (= ULTIMATE.start_main_~B~0 1) .cse0 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~b~0) .cse1 .cse2 .cse3))) [2020-11-29 22:06:09,895 INFO L274 CegarLoopResult]: For program point L43(lines 43 46) no Hoare annotation was computed. [2020-11-29 22:06:09,895 INFO L274 CegarLoopResult]: For program point L43-2(lines 25 50) no Hoare annotation was computed. [2020-11-29 22:06:09,895 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-29 22:06:09,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:06:09 BoogieIcfgContainer [2020-11-29 22:06:09,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:06:09,941 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:06:09,941 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:06:09,942 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:06:09,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:06:04" (3/4) ... [2020-11-29 22:06:09,946 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 22:06:09,955 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-29 22:06:09,955 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 22:06:09,955 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:06:09,956 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:06:10,013 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_55612166-d853-4733-87bb-44c924563711/bin/uautomizer/witness.graphml [2020-11-29 22:06:10,013 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:06:10,015 INFO L168 Benchmark]: Toolchain (without parser) took 6560.75 ms. Allocated memory was 75.5 MB in the beginning and 117.4 MB in the end (delta: 41.9 MB). Free memory was 45.0 MB in the beginning and 54.3 MB in the end (delta: -9.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:06:10,016 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 75.5 MB. Free memory was 46.7 MB in the beginning and 46.7 MB in the end (delta: 26.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:06:10,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.02 ms. Allocated memory was 75.5 MB in the beginning and 96.5 MB in the end (delta: 21.0 MB). Free memory was 44.8 MB in the beginning and 74.3 MB in the end (delta: -29.5 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:06:10,017 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.49 ms. Allocated memory is still 96.5 MB. Free memory was 74.3 MB in the beginning and 72.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:06:10,017 INFO L168 Benchmark]: Boogie Preprocessor took 29.87 ms. Allocated memory is still 96.5 MB. Free memory was 72.9 MB in the beginning and 71.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:06:10,019 INFO L168 Benchmark]: RCFGBuilder took 458.09 ms. Allocated memory is still 96.5 MB. Free memory was 71.5 MB in the beginning and 58.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:06:10,019 INFO L168 Benchmark]: TraceAbstraction took 5598.54 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 58.2 MB in the beginning and 57.4 MB in the end (delta: 784.7 kB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:06:10,020 INFO L168 Benchmark]: Witness Printer took 72.37 ms. Allocated memory is still 117.4 MB. Free memory was 57.4 MB in the beginning and 54.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:06:10,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 75.5 MB. Free memory was 46.7 MB in the beginning and 46.7 MB in the end (delta: 26.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 360.02 ms. Allocated memory was 75.5 MB in the beginning and 96.5 MB in the end (delta: 21.0 MB). Free memory was 44.8 MB in the beginning and 74.3 MB in the end (delta: -29.5 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.49 ms. Allocated memory is still 96.5 MB. Free memory was 74.3 MB in the beginning and 72.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.87 ms. Allocated memory is still 96.5 MB. Free memory was 72.9 MB in the beginning and 71.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 458.09 ms. Allocated memory is still 96.5 MB. Free memory was 71.5 MB in the beginning and 58.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5598.54 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 58.2 MB in the beginning and 57.4 MB in the end (delta: 784.7 kB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. * Witness Printer took 72.37 ms. Allocated memory is still 117.4 MB. Free memory was 57.4 MB in the beginning and 54.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((((A % 4294967296 <= 1 && b == 2) && 1 <= r % 4294967296) && q == 0) && cond == 1) && B * 2 == b) && A == r) || (((((B == 1 && A % 4294967296 <= 1) && B == b) && q == 0) && cond == 1) && A == r) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((b == 2 && r % 4294967296 < b % 4294967296) && 1 <= r % 4294967296) && 1 <= cond) && q == 0) && cond == 1) && B * 2 == b) && A == r) || (((((((q == 1 && B == 1) && A % 4294967296 <= 1) && 1 <= cond) && A == r + b) && cond == 1) && B * 2 % 4294967296 / 2 == b) && b % 4294967296 <= (r + b) % 4294967296)) || ((((((B == 1 && A % 4294967296 <= 1) && 1 <= cond) && B == b) && q == 0) && cond == 1) && A == r) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 79 SDtfs, 115 SDslu, 103 SDs, 0 SdLazy, 129 SolverSat, 38 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 151 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 38 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 7409 SizeOfPredicates, 19 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 7/16 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...