./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound5.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_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/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 5691355e15b410e2407124fd7e64eda88df84f74 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:21:29,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:21:29,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:21:29,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:21:29,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:21:29,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:21:29,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:21:29,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:21:29,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:21:29,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:21:29,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:21:29,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:21:29,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:21:29,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:21:29,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:21:29,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:21:29,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:21:29,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:21:29,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:21:29,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:21:29,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:21:29,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:21:29,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:21:29,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:21:29,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:21:29,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:21:29,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:21:29,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:21:29,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:21:29,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:21:29,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:21:29,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:21:29,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:21:29,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:21:29,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:21:29,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:21:29,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:21:29,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:21:29,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:21:29,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:21:29,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:21:29,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:21:29,724 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:21:29,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:21:29,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:21:29,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:21:29,726 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:21:29,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:21:29,727 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:21:29,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:21:29,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:21:29,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:21:29,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:21:29,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:21:29,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:21:29,728 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:21:29,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:21:29,729 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:21:29,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:21:29,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:21:29,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:21:29,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:21:29,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:21:29,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:21:29,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:21:29,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:21:29,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:21:29,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:21:29,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:21:29,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:21:29,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:21:29,736 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_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5691355e15b410e2407124fd7e64eda88df84f74 [2020-11-29 18:21:30,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:21:30,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:21:30,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:21:30,129 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:21:30,131 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:21:30,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound5.c [2020-11-29 18:21:30,261 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/bin/uautomizer/data/6c011c99a/a2bca096a50a4c1b8509da3a650ef3e7/FLAG4f262e3da [2020-11-29 18:21:30,913 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:21:30,914 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound5.c [2020-11-29 18:21:30,922 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/bin/uautomizer/data/6c011c99a/a2bca096a50a4c1b8509da3a650ef3e7/FLAG4f262e3da [2020-11-29 18:21:31,301 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/bin/uautomizer/data/6c011c99a/a2bca096a50a4c1b8509da3a650ef3e7 [2020-11-29 18:21:31,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:21:31,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:21:31,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:21:31,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:21:31,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:21:31,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:21:31" (1/1) ... [2020-11-29 18:21:31,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@262e7dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:31, skipping insertion in model container [2020-11-29 18:21:31,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:21:31" (1/1) ... [2020-11-29 18:21:31,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:21:31,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:21:31,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:21:31,570 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:21:31,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:21:31,621 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:21:31,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:31 WrapperNode [2020-11-29 18:21:31,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:21:31,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:21:31,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:21:31,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:21:31,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:31" (1/1) ... [2020-11-29 18:21:31,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:31" (1/1) ... [2020-11-29 18:21:31,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:21:31,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:21:31,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:21:31,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:21:31,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:31" (1/1) ... [2020-11-29 18:21:31,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:31" (1/1) ... [2020-11-29 18:21:31,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:31" (1/1) ... [2020-11-29 18:21:31,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:31" (1/1) ... [2020-11-29 18:21:31,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:31" (1/1) ... [2020-11-29 18:21:31,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:31" (1/1) ... [2020-11-29 18:21:31,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:31" (1/1) ... [2020-11-29 18:21:31,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:21:31,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:21:31,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:21:31,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:21:31,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/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 18:21:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:21:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:21:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:21:31,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:21:32,193 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:21:32,194 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-11-29 18:21:32,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:21:32 BoogieIcfgContainer [2020-11-29 18:21:32,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:21:32,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:21:32,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:21:32,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:21:32,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:21:31" (1/3) ... [2020-11-29 18:21:32,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5893182b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:21:32, skipping insertion in model container [2020-11-29 18:21:32,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:21:31" (2/3) ... [2020-11-29 18:21:32,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5893182b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:21:32, skipping insertion in model container [2020-11-29 18:21:32,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:21:32" (3/3) ... [2020-11-29 18:21:32,207 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_valuebound5.c [2020-11-29 18:21:32,223 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:21:32,228 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-29 18:21:32,244 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 18:21:32,276 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:21:32,277 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:21:32,277 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:21:32,277 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:21:32,277 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:21:32,278 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:21:32,278 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:21:32,278 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:21:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-11-29 18:21:32,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:21:32,304 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:21:32,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:21:32,306 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:21:32,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:21:32,316 INFO L82 PathProgramCache]: Analyzing trace with hash -144177098, now seen corresponding path program 1 times [2020-11-29 18:21:32,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:21:32,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114596593] [2020-11-29 18:21:32,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:21:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:32,563 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 18:21:32,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114596593] [2020-11-29 18:21:32,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:21:32,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:21:32,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760541627] [2020-11-29 18:21:32,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:21:32,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:21:32,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:21:32,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:21:32,595 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-11-29 18:21:32,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:21:32,618 INFO L93 Difference]: Finished difference Result 43 states and 58 transitions. [2020-11-29 18:21:32,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:21:32,619 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-29 18:21:32,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:21:32,630 INFO L225 Difference]: With dead ends: 43 [2020-11-29 18:21:32,630 INFO L226 Difference]: Without dead ends: 19 [2020-11-29 18:21:32,636 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 18:21:32,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-29 18:21:32,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-29 18:21:32,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-29 18:21:32,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-11-29 18:21:32,695 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 13 [2020-11-29 18:21:32,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:21:32,696 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-11-29 18:21:32,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:21:32,697 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-11-29 18:21:32,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:21:32,699 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:21:32,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:21:32,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:21:32,701 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:21:32,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:21:32,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1281167042, now seen corresponding path program 1 times [2020-11-29 18:21:32,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:21:32,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070847206] [2020-11-29 18:21:32,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:21:32,762 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:21:32,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [642974152] [2020-11-29 18:21:32,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/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 18:21:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:32,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:21:32,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:21:33,051 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-29 18:21:33,127 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 18:21:33,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070847206] [2020-11-29 18:21:33,128 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:21:33,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642974152] [2020-11-29 18:21:33,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:21:33,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:21:33,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973490817] [2020-11-29 18:21:33,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:21:33,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:21:33,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:21:33,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:21:33,135 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 4 states. [2020-11-29 18:21:33,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:21:33,244 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-11-29 18:21:33,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:21:33,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-29 18:21:33,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:21:33,247 INFO L225 Difference]: With dead ends: 29 [2020-11-29 18:21:33,247 INFO L226 Difference]: Without dead ends: 23 [2020-11-29 18:21:33,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:21:33,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-29 18:21:33,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2020-11-29 18:21:33,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-29 18:21:33,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-11-29 18:21:33,256 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2020-11-29 18:21:33,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:21:33,256 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-11-29 18:21:33,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:21:33,257 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-11-29 18:21:33,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 18:21:33,257 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:21:33,258 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:21:33,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-29 18:21:33,481 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:21:33,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:21:33,482 INFO L82 PathProgramCache]: Analyzing trace with hash 2132918982, now seen corresponding path program 1 times [2020-11-29 18:21:33,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:21:33,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791560547] [2020-11-29 18:21:33,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:21:33,532 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:21:33,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610963167] [2020-11-29 18:21:33,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/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 18:21:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:33,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 18:21:33,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:21:33,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:33,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791560547] [2020-11-29 18:21:33,826 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:21:33,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610963167] [2020-11-29 18:21:33,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-29 18:21:33,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-29 18:21:33,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741645145] [2020-11-29 18:21:33,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:21:33,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:21:33,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:21:33,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:21:33,829 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 5 states. [2020-11-29 18:21:37,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:21:37,581 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-11-29 18:21:37,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:21:37,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-11-29 18:21:37,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:21:37,584 INFO L225 Difference]: With dead ends: 29 [2020-11-29 18:21:37,584 INFO L226 Difference]: Without dead ends: 27 [2020-11-29 18:21:37,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:21:37,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-29 18:21:37,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2020-11-29 18:21:37,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-29 18:21:37,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-11-29 18:21:37,592 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 16 [2020-11-29 18:21:37,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:21:37,593 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-11-29 18:21:37,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:21:37,593 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-11-29 18:21:37,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 18:21:37,594 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:21:37,595 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:21:37,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:21:37,800 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:21:37,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:21:37,800 INFO L82 PathProgramCache]: Analyzing trace with hash 2049083668, now seen corresponding path program 1 times [2020-11-29 18:21:37,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:21:37,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014965036] [2020-11-29 18:21:37,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:21:37,817 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:21:37,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [831850261] [2020-11-29 18:21:37,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/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 18:21:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:21:37,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 18:21:37,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:21:37,949 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 18:21:37,950 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:21:38,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 18:21:38,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014965036] [2020-11-29 18:21:38,140 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:21:38,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831850261] [2020-11-29 18:21:38,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:21:38,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:21:38,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271529403] [2020-11-29 18:21:38,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:21:38,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:21:38,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:21:38,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:21:38,144 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 5 states. [2020-11-29 18:21:42,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:21:42,492 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-11-29 18:21:42,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:21:42,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-11-29 18:21:42,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:21:42,494 INFO L225 Difference]: With dead ends: 24 [2020-11-29 18:21:42,495 INFO L226 Difference]: Without dead ends: 20 [2020-11-29 18:21:42,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:21:42,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-29 18:21:42,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-29 18:21:42,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-29 18:21:42,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-11-29 18:21:42,501 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 19 [2020-11-29 18:21:42,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:21:42,501 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-11-29 18:21:42,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:21:42,502 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-11-29 18:21:42,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 18:21:42,503 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:21:42,503 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:21:42,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:21:42,704 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:21:42,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:21:42,705 INFO L82 PathProgramCache]: Analyzing trace with hash 2049123390, now seen corresponding path program 2 times [2020-11-29 18:21:42,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:21:42,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678375437] [2020-11-29 18:21:42,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:21:42,736 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:21:42,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [612318142] [2020-11-29 18:21:42,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/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 18:21:42,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 18:21:42,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 18:21:42,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 20 conjunts are in the unsatisfiable core [2020-11-29 18:21:42,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:21:42,969 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 18:21:42,970 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:21:44,495 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-11-29 18:21:44,524 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:21:44,575 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:21:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:21:44,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678375437] [2020-11-29 18:21:44,656 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:21:44,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612318142] [2020-11-29 18:21:44,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-29 18:21:44,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-29 18:21:44,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515647107] [2020-11-29 18:21:44,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 18:21:44,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:21:44,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 18:21:44,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:21:44,659 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 8 states. [2020-11-29 18:21:49,023 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-29 18:21:50,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:21:50,237 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-11-29 18:21:50,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 18:21:50,242 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-11-29 18:21:50,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:21:50,242 INFO L225 Difference]: With dead ends: 25 [2020-11-29 18:21:50,242 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 18:21:50,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-11-29 18:21:50,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 18:21:50,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 18:21:50,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 18:21:50,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:21:50,244 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-11-29 18:21:50,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:21:50,245 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:21:50,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 18:21:50,245 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:21:50,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:21:50,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:21:50,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 18:21:50,604 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-11-29 18:21:50,604 INFO L270 CegarLoopResult]: At program point L36-2(lines 36 46) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~x~0 1) (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0)) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) [2020-11-29 18:21:50,605 INFO L274 CegarLoopResult]: For program point L36-3(lines 36 46) no Hoare annotation was computed. [2020-11-29 18:21:50,605 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 18:21:50,605 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 18:21:50,605 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 18:21:50,605 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-11-29 18:21:50,606 INFO L274 CegarLoopResult]: For program point L16(lines 16 19) no Hoare annotation was computed. [2020-11-29 18:21:50,606 INFO L270 CegarLoopResult]: At program point L16-1(lines 39 40) the Hoare annotation is: (and (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) 1) (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) [2020-11-29 18:21:50,606 INFO L274 CegarLoopResult]: For program point L16-2(lines 16 19) no Hoare annotation was computed. [2020-11-29 18:21:50,606 INFO L277 CegarLoopResult]: At program point L16-3(lines 15 21) the Hoare annotation is: true [2020-11-29 18:21:50,606 INFO L274 CegarLoopResult]: For program point L12(lines 12 14) no Hoare annotation was computed. [2020-11-29 18:21:50,607 INFO L274 CegarLoopResult]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2020-11-29 18:21:50,607 INFO L274 CegarLoopResult]: For program point L12-2(lines 12 14) no Hoare annotation was computed. [2020-11-29 18:21:50,607 INFO L274 CegarLoopResult]: For program point L12-3(lines 12 14) no Hoare annotation was computed. [2020-11-29 18:21:50,607 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 18:21:50,607 INFO L274 CegarLoopResult]: For program point L17(lines 17 18) no Hoare annotation was computed. [2020-11-29 18:21:50,607 INFO L274 CegarLoopResult]: For program point L17-1(lines 17 18) no Hoare annotation was computed. [2020-11-29 18:21:50,607 INFO L274 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-11-29 18:21:50,608 INFO L274 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-11-29 18:21:50,608 INFO L274 CegarLoopResult]: For program point L13-4(line 13) no Hoare annotation was computed. [2020-11-29 18:21:50,608 INFO L274 CegarLoopResult]: For program point L13-6(line 13) no Hoare annotation was computed. [2020-11-29 18:21:50,608 INFO L277 CegarLoopResult]: At program point L51(lines 22 52) the Hoare annotation is: true [2020-11-29 18:21:50,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:21:50 BoogieIcfgContainer [2020-11-29 18:21:50,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:21:50,629 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:21:50,629 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:21:50,629 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:21:50,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:21:32" (3/4) ... [2020-11-29 18:21:50,634 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:21:50,648 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-29 18:21:50,648 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 18:21:50,649 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:21:50,649 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:21:50,707 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_03cce0b4-adfa-4ee9-bcd1-ecb472bda121/bin/uautomizer/witness.graphml [2020-11-29 18:21:50,707 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:21:50,709 INFO L168 Benchmark]: Toolchain (without parser) took 19401.80 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 79.4 MB in the beginning and 90.7 MB in the end (delta: -11.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:21:50,710 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 81.8 MB. Free memory is still 39.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:21:50,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.68 ms. Allocated memory is still 107.0 MB. Free memory was 79.4 MB in the beginning and 84.7 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:21:50,711 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.83 ms. Allocated memory is still 107.0 MB. Free memory was 84.7 MB in the beginning and 83.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:21:50,712 INFO L168 Benchmark]: Boogie Preprocessor took 44.94 ms. Allocated memory is still 107.0 MB. Free memory was 83.2 MB in the beginning and 82.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:21:50,713 INFO L168 Benchmark]: RCFGBuilder took 463.64 ms. Allocated memory is still 107.0 MB. Free memory was 82.0 MB in the beginning and 68.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:21:50,713 INFO L168 Benchmark]: TraceAbstraction took 18430.06 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 68.0 MB in the beginning and 93.9 MB in the end (delta: -26.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:21:50,719 INFO L168 Benchmark]: Witness Printer took 78.85 ms. Allocated memory is still 130.0 MB. Free memory was 93.9 MB in the beginning and 90.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:21:50,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 81.8 MB. Free memory is still 39.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 313.68 ms. Allocated memory is still 107.0 MB. Free memory was 79.4 MB in the beginning and 84.7 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.83 ms. Allocated memory is still 107.0 MB. Free memory was 84.7 MB in the beginning and 83.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.94 ms. Allocated memory is still 107.0 MB. Free memory was 83.2 MB in the beginning and 82.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 463.64 ms. Allocated memory is still 107.0 MB. Free memory was 82.0 MB in the beginning and 68.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18430.06 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 68.0 MB in the beginning and 93.9 MB in the end (delta: -26.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 78.85 ms. Allocated memory is still 130.0 MB. Free memory was 93.9 MB in the beginning and 90.7 MB in the end (delta: 3.2 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: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 9]: 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: 39]: Loop Invariant Derived loop invariant: z * x + 1 == x + y && 1 == cond - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (x == 1 && z == y) || 1 <= cond - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.1s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 27 SDslu, 136 SDs, 0 SdLazy, 119 SolverSat, 19 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 12.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=3, 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, 14 NumberOfFragments, 26 HoareAnnotationTreeSize, 4 FomulaSimplifications, 183 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 4623 SizeOfPredicates, 25 NumberOfNonLiveVariables, 344 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 3/12 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...