./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/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 020b73b2fed85832aee8e899d9fcbd19969e542e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:13:53,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:13:53,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:13:53,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:13:53,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:13:53,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:13:53,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:13:53,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:13:53,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:13:53,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:13:53,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:13:53,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:13:53,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:13:53,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:13:53,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:13:53,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:13:53,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:13:53,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:13:53,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:13:53,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:13:53,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:13:53,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:13:53,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:13:53,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:13:53,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:13:53,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:13:53,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:13:53,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:13:53,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:13:53,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:13:53,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:13:53,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:13:53,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:13:53,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:13:53,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:13:53,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:13:53,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:13:53,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:13:53,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:13:53,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:13:53,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:13:53,759 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:13:53,802 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:13:53,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:13:53,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:13:53,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:13:53,806 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:13:53,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:13:53,806 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:13:53,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:13:53,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:13:53,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:13:53,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:13:53,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:13:53,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:13:53,808 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:13:53,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:13:53,809 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:13:53,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:13:53,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:13:53,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:13:53,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:13:53,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:13:53,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:13:53,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:13:53,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:13:53,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:13:53,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:13:53,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:13:53,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:13:53,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:13:53,811 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_8d5a10ff-a2f3-4186-aca9-d86b74602687/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 020b73b2fed85832aee8e899d9fcbd19969e542e [2020-11-28 03:13:54,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:13:54,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:13:54,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:13:54,153 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:13:54,154 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:13:54,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2020-11-28 03:13:54,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/data/b3038e833/3d8ff659936f4b5582c9b4d2ec311e73/FLAGfdcccaa85 [2020-11-28 03:13:54,672 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:13:54,673 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2020-11-28 03:13:54,687 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/data/b3038e833/3d8ff659936f4b5582c9b4d2ec311e73/FLAGfdcccaa85 [2020-11-28 03:13:55,034 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/data/b3038e833/3d8ff659936f4b5582c9b4d2ec311e73 [2020-11-28 03:13:55,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:13:55,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:13:55,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:13:55,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:13:55,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:13:55,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:55" (1/1) ... [2020-11-28 03:13:55,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5139b652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:55, skipping insertion in model container [2020-11-28 03:13:55,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:55" (1/1) ... [2020-11-28 03:13:55,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:13:55,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:13:55,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:13:55,299 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:13:55,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:13:55,358 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:13:55,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:55 WrapperNode [2020-11-28 03:13:55,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:13:55,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:13:55,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:13:55,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:13:55,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:55" (1/1) ... [2020-11-28 03:13:55,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:55" (1/1) ... [2020-11-28 03:13:55,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:13:55,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:13:55,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:13:55,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:13:55,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:55" (1/1) ... [2020-11-28 03:13:55,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:55" (1/1) ... [2020-11-28 03:13:55,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:55" (1/1) ... [2020-11-28 03:13:55,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:55" (1/1) ... [2020-11-28 03:13:55,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:55" (1/1) ... [2020-11-28 03:13:55,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:55" (1/1) ... [2020-11-28 03:13:55,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:55" (1/1) ... [2020-11-28 03:13:55,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:13:55,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:13:55,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:13:55,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:13:55,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:13:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:13:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:13:55,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:13:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:13:56,040 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:13:56,041 INFO L298 CfgBuilder]: Removed 23 assume(true) statements. [2020-11-28 03:13:56,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:56 BoogieIcfgContainer [2020-11-28 03:13:56,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:13:56,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:13:56,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:13:56,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:13:56,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:13:55" (1/3) ... [2020-11-28 03:13:56,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c47ab6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:56, skipping insertion in model container [2020-11-28 03:13:56,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:55" (2/3) ... [2020-11-28 03:13:56,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c47ab6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:56, skipping insertion in model container [2020-11-28 03:13:56,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:56" (3/3) ... [2020-11-28 03:13:56,054 INFO L111 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound1.c [2020-11-28 03:13:56,065 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:13:56,070 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:13:56,081 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:13:56,117 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:13:56,117 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:13:56,118 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:13:56,118 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:13:56,118 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:13:56,118 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:13:56,118 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:13:56,119 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:13:56,135 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-11-28 03:13:56,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:13:56,141 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:13:56,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:13:56,142 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:13:56,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:56,153 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2020-11-28 03:13:56,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:56,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264193226] [2020-11-28 03:13:56,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:56,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:13:56,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264193226] [2020-11-28 03:13:56,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:13:56,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:13:56,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749460349] [2020-11-28 03:13:56,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:13:56,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:13:56,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:13:56,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:13:56,327 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2020-11-28 03:13:56,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:13:56,344 INFO L93 Difference]: Finished difference Result 53 states and 74 transitions. [2020-11-28 03:13:56,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:13:56,346 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-28 03:13:56,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:13:56,355 INFO L225 Difference]: With dead ends: 53 [2020-11-28 03:13:56,355 INFO L226 Difference]: Without dead ends: 24 [2020-11-28 03:13:56,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:13:56,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-28 03:13:56,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-11-28 03:13:56,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-28 03:13:56,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2020-11-28 03:13:56,388 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 11 [2020-11-28 03:13:56,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:13:56,389 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2020-11-28 03:13:56,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:13:56,389 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2020-11-28 03:13:56,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:13:56,390 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:13:56,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:13:56,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:13:56,390 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:13:56,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:56,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2020-11-28 03:13:56,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:56,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919107671] [2020-11-28 03:13:56,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:56,412 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:13:56,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1574838062] [2020-11-28 03:13:56,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:13:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:56,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 28 conjunts are in the unsatisfiable core [2020-11-28 03:13:56,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:13:56,576 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 03:13:56,576 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:13:56,632 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 03:13:56,632 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:13:56,687 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:13:56,687 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:13:56,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:13:56,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919107671] [2020-11-28 03:13:56,829 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:13:56,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574838062] [2020-11-28 03:13:56,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:13:56,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-28 03:13:56,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416183295] [2020-11-28 03:13:56,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 03:13:56,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:13:56,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:13:56,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:13:56,834 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 10 states. [2020-11-28 03:13:57,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:13:57,550 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2020-11-28 03:13:57,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:13:57,551 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-11-28 03:13:57,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:13:57,552 INFO L225 Difference]: With dead ends: 55 [2020-11-28 03:13:57,552 INFO L226 Difference]: Without dead ends: 39 [2020-11-28 03:13:57,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-11-28 03:13:57,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-28 03:13:57,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2020-11-28 03:13:57,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-28 03:13:57,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-11-28 03:13:57,567 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 11 [2020-11-28 03:13:57,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:13:57,567 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-11-28 03:13:57,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 03:13:57,568 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-11-28 03:13:57,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:13:57,568 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:13:57,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:13:57,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 03:13:57,787 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:13:57,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:57,788 INFO L82 PathProgramCache]: Analyzing trace with hash -936562870, now seen corresponding path program 1 times [2020-11-28 03:13:57,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:57,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370085001] [2020-11-28 03:13:57,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:57,807 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:13:57,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447830502] [2020-11-28 03:13:57,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:13:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:57,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 25 conjunts are in the unsatisfiable core [2020-11-28 03:13:57,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:13:57,885 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 03:13:57,885 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:13:57,924 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:13:57,924 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:13:57,974 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:13:59,440 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 46 DAG size of output: 35 [2020-11-28 03:13:59,448 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 7, 2, 1] term [2020-11-28 03:13:59,450 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:13:59,580 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 03:13:59,581 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 03:13:59,583 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:14:10,449 WARN L193 SmtUtils]: Spent 10.82 s on a formula simplification. DAG size of input: 26 DAG size of output: 10 [2020-11-28 03:14:10,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:10,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370085001] [2020-11-28 03:14:10,542 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:14:10,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447830502] [2020-11-28 03:14:10,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:10,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-28 03:14:10,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561080562] [2020-11-28 03:14:10,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:14:10,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:10,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:14:10,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:14:10,545 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 11 states. [2020-11-28 03:14:12,573 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 38 DAG size of output: 27 [2020-11-28 03:14:15,473 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2020-11-28 03:14:16,048 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 29 [2020-11-28 03:14:16,323 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 21 [2020-11-28 03:14:17,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:17,662 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2020-11-28 03:14:17,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:14:17,663 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 14 [2020-11-28 03:14:17,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:17,664 INFO L225 Difference]: With dead ends: 39 [2020-11-28 03:14:17,664 INFO L226 Difference]: Without dead ends: 31 [2020-11-28 03:14:17,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 18.2s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2020-11-28 03:14:17,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-28 03:14:17,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2020-11-28 03:14:17,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-28 03:14:17,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2020-11-28 03:14:17,671 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 14 [2020-11-28 03:14:17,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:17,671 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2020-11-28 03:14:17,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:14:17,671 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2020-11-28 03:14:17,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:14:17,672 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:17,672 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:17,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:14:17,875 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:17,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:17,876 INFO L82 PathProgramCache]: Analyzing trace with hash 296333352, now seen corresponding path program 1 times [2020-11-28 03:14:17,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:17,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664978964] [2020-11-28 03:14:17,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:17,898 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:14:17,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229663835] [2020-11-28 03:14:17,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:14:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:17,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 03:14:17,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:14:17,985 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 03:14:17,985 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:14:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:18,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664978964] [2020-11-28 03:14:18,050 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:14:18,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229663835] [2020-11-28 03:14:18,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:18,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:14:18,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315073713] [2020-11-28 03:14:18,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:14:18,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:18,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:14:18,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:14:18,052 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 6 states. [2020-11-28 03:14:18,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:18,204 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2020-11-28 03:14:18,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:14:18,207 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-28 03:14:18,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:18,208 INFO L225 Difference]: With dead ends: 45 [2020-11-28 03:14:18,208 INFO L226 Difference]: Without dead ends: 29 [2020-11-28 03:14:18,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:14:18,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-28 03:14:18,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-28 03:14:18,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-28 03:14:18,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-11-28 03:14:18,214 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 17 [2020-11-28 03:14:18,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:18,214 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-11-28 03:14:18,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:14:18,215 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-11-28 03:14:18,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:14:18,215 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:18,215 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:18,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:14:18,427 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:18,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:18,427 INFO L82 PathProgramCache]: Analyzing trace with hash 296392934, now seen corresponding path program 1 times [2020-11-28 03:14:18,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:18,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523921481] [2020-11-28 03:14:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:18,438 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:14:18,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [299589314] [2020-11-28 03:14:18,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:14:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:18,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 35 conjunts are in the unsatisfiable core [2020-11-28 03:14:18,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:14:18,547 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 03:14:18,547 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:14:18,613 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 03:14:18,613 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:14:18,814 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2020-11-28 03:14:19,054 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:14:19,057 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-28 03:14:19,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:19,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523921481] [2020-11-28 03:14:19,230 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:14:19,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299589314] [2020-11-28 03:14:19,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:14:19,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-28 03:14:19,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688118777] [2020-11-28 03:14:19,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:14:19,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:19,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:14:19,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:14:19,233 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 11 states. [2020-11-28 03:14:19,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:19,685 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2020-11-28 03:14:19,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:14:19,686 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 17 [2020-11-28 03:14:19,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:19,687 INFO L225 Difference]: With dead ends: 37 [2020-11-28 03:14:19,687 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:14:19,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-11-28 03:14:19,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:14:19,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:14:19,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:14:19,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:14:19,688 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-28 03:14:19,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:19,688 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:14:19,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:14:19,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:14:19,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:14:19,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:14:19,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:14:20,505 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2020-11-28 03:14:20,840 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 32 [2020-11-28 03:14:21,115 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2020-11-28 03:14:21,117 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-28 03:14:21,117 INFO L274 CegarLoopResult]: For program point L44(lines 44 54) no Hoare annotation was computed. [2020-11-28 03:14:21,117 INFO L274 CegarLoopResult]: For program point L40(lines 40 54) no Hoare annotation was computed. [2020-11-28 03:14:21,117 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:14:21,117 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:14:21,117 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:14:21,117 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-28 03:14:21,118 INFO L274 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2020-11-28 03:14:21,118 INFO L270 CegarLoopResult]: At program point L12-1(lines 37 38) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~y~0)) (.cse1 (<= ULTIMATE.start_main_~y~0 1)) (.cse2 (= ULTIMATE.start_main_~p~0 1)) (.cse3 (<= 0 ULTIMATE.start_main_~a~0)) (.cse4 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) .cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse2 .cse3 (= ULTIMATE.start_main_~q~0 0) .cse4 (<= ULTIMATE.start_main_~a~0 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (and (<= ULTIMATE.start_main_~x~0 1) .cse0 (= ULTIMATE.start_main_~q~0 (+ (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~p~0) (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~p~0)) .cse1 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~a~0 1)) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~b~0 1))))) [2020-11-28 03:14:21,118 INFO L274 CegarLoopResult]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2020-11-28 03:14:21,118 INFO L270 CegarLoopResult]: At program point L12-3(lines 11 17) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~y~0)) (.cse1 (<= ULTIMATE.start_main_~y~0 1)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and (<= ULTIMATE.start_main_~x~0 1) .cse0 (= ULTIMATE.start_main_~q~0 (+ (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~p~0) (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~p~0)) .cse1 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~a~0 1)) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~p~0 1) (<= 0 ULTIMATE.start_main_~a~0) .cse2 (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~b~0 1))) (and (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~b~0) (<= 1 ULTIMATE.start_main_~p~0) .cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) .cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_main_~q~0 0) .cse2))) [2020-11-28 03:14:21,118 INFO L274 CegarLoopResult]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-11-28 03:14:21,118 INFO L274 CegarLoopResult]: For program point L12-4(lines 12 15) no Hoare annotation was computed. [2020-11-28 03:14:21,118 INFO L274 CegarLoopResult]: For program point L8-1(lines 8 10) no Hoare annotation was computed. [2020-11-28 03:14:21,119 INFO L277 CegarLoopResult]: At program point L12-5(lines 11 17) the Hoare annotation is: true [2020-11-28 03:14:21,119 INFO L274 CegarLoopResult]: For program point L8-2(lines 8 10) no Hoare annotation was computed. [2020-11-28 03:14:21,119 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:14:21,119 INFO L274 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2020-11-28 03:14:21,119 INFO L274 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2020-11-28 03:14:21,119 INFO L274 CegarLoopResult]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2020-11-28 03:14:21,119 INFO L274 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-11-28 03:14:21,119 INFO L274 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-11-28 03:14:21,119 INFO L274 CegarLoopResult]: For program point L9-4(line 9) no Hoare annotation was computed. [2020-11-28 03:14:21,119 INFO L274 CegarLoopResult]: For program point L34-2(lines 34 55) no Hoare annotation was computed. [2020-11-28 03:14:21,119 INFO L277 CegarLoopResult]: At program point L59(lines 19 60) the Hoare annotation is: true [2020-11-28 03:14:21,120 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-28 03:14:21,120 INFO L274 CegarLoopResult]: For program point L47(lines 47 54) no Hoare annotation was computed. [2020-11-28 03:14:21,120 INFO L270 CegarLoopResult]: At program point L47-2(lines 34 55) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~y~0)) (.cse1 (<= ULTIMATE.start_main_~y~0 1)) (.cse2 (= ULTIMATE.start_main_~p~0 1)) (.cse3 (<= 0 ULTIMATE.start_main_~a~0)) (.cse4 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and (<= ULTIMATE.start_main_~x~0 1) .cse0 (= ULTIMATE.start_main_~q~0 (+ (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~p~0) (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~p~0)) .cse1 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~a~0 1)) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~b~0 1))) (and .cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~q~0 0) .cse4 (<= ULTIMATE.start_main_~a~0 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)))) [2020-11-28 03:14:21,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:14:21 BoogieIcfgContainer [2020-11-28 03:14:21,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:14:21,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:14:21,144 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:14:21,144 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:14:21,145 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:56" (3/4) ... [2020-11-28 03:14:21,148 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:14:21,159 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-28 03:14:21,159 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:14:21,159 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:14:21,159 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:14:21,229 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8d5a10ff-a2f3-4186-aca9-d86b74602687/bin/uautomizer/witness.graphml [2020-11-28 03:14:21,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:14:21,230 INFO L168 Benchmark]: Toolchain (without parser) took 26192.39 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 86.9 MB in the beginning and 55.1 MB in the end (delta: 31.8 MB). Peak memory consumption was 68.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:21,231 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 113.2 MB. Free memory was 71.2 MB in the beginning and 71.1 MB in the end (delta: 52.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:14:21,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.31 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 86.9 MB in the beginning and 124.5 MB in the end (delta: -37.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:21,232 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.22 ms. Allocated memory is still 148.9 MB. Free memory was 124.5 MB in the beginning and 123.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:21,232 INFO L168 Benchmark]: Boogie Preprocessor took 49.35 ms. Allocated memory is still 148.9 MB. Free memory was 123.0 MB in the beginning and 121.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:21,232 INFO L168 Benchmark]: RCFGBuilder took 594.96 ms. Allocated memory is still 148.9 MB. Free memory was 121.3 MB in the beginning and 106.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:21,233 INFO L168 Benchmark]: TraceAbstraction took 25097.38 ms. Allocated memory is still 148.9 MB. Free memory was 106.2 MB in the beginning and 58.3 MB in the end (delta: 47.9 MB). Peak memory consumption was 49.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:21,233 INFO L168 Benchmark]: Witness Printer took 85.50 ms. Allocated memory is still 148.9 MB. Free memory was 58.3 MB in the beginning and 55.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:21,236 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 113.2 MB. Free memory was 71.2 MB in the beginning and 71.1 MB in the end (delta: 52.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 320.31 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 86.9 MB in the beginning and 124.5 MB in the end (delta: -37.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.22 ms. Allocated memory is still 148.9 MB. Free memory was 124.5 MB in the beginning and 123.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.35 ms. Allocated memory is still 148.9 MB. Free memory was 123.0 MB in the beginning and 121.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 594.96 ms. Allocated memory is still 148.9 MB. Free memory was 121.3 MB in the beginning and 106.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 25097.38 ms. Allocated memory is still 148.9 MB. Free memory was 106.2 MB in the beginning and 58.3 MB in the end (delta: 47.9 MB). Peak memory consumption was 49.3 MB. Max. memory is 16.1 GB. * Witness Printer took 85.50 ms. Allocated memory is still 148.9 MB. Free memory was 58.3 MB in the beginning and 55.1 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: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (((((((((1 <= y && a == x) && y <= 1) && 1 == cond) && p == 1) && 0 <= a) && q == 0) && cond == 1) && a <= 1) && b == y) || (((((((((x <= 1 && 1 <= y) && q == a * p + p * b + p) && y <= 1) && x == a + 1) && 1 <= cond) && p == 1) && 0 <= a) && cond == 1) && y == b + 1) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((((x <= 1 && 1 <= y) && q == a * p + p * b + p) && y <= 1) && x == a + 1) && 1 <= cond) && p == 1) && 0 <= a) && cond == 1) && y == b + 1) || ((((((((1 <= y && a == x) && y <= 1) && p == 1) && 0 <= a) && q == 0) && cond == 1) && a <= 1) && b == y) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((((((x <= 1 && 1 <= y) && q == a * p + p * b + p) && y <= 1) && x == a + 1) && 1 <= cond) && p == 1) && 0 <= a) && cond == 1) && y == b + 1) || ((((((((y <= b && 1 <= p) && 1 <= y) && a == x) && y <= 1) && 1 == cond) && x == 0) && q == 0) && cond == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.7s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 73 SDtfs, 330 SDslu, 110 SDs, 0 SdLazy, 272 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 19.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, 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, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 13 NumberOfFragments, 218 HoareAnnotationTreeSize, 5 FomulaSimplifications, 174 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 140 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 13.9s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 65 ConstructedInterpolants, 1 QuantifiedInterpolants, 11270 SizeOfPredicates, 46 NumberOfNonLiveVariables, 315 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 2/4 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...