./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound20.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_b6d2a52f-408e-4c45-953a-46e5764fc7f8/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound20.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/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 fa90f714f155a5bf890626268a305533d9a2c78c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:21:20,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:21:20,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:21:20,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:21:20,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:21:20,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:21:20,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:21:20,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:21:20,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:21:20,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:21:20,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:21:20,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:21:20,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:21:20,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:21:20,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:21:20,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:21:20,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:21:20,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:21:20,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:21:20,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:21:20,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:21:20,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:21:20,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:21:20,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:21:20,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:21:20,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:21:20,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:21:20,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:21:20,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:21:20,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:21:20,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:21:20,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:21:20,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:21:20,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:21:20,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:21:20,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:21:20,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:21:20,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:21:20,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:21:20,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:21:20,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:21:20,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:21:20,646 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:21:20,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:21:20,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:21:20,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:21:20,648 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:21:20,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:21:20,649 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:21:20,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:21:20,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:21:20,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:21:20,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:21:20,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:21:20,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:21:20,651 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:21:20,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:21:20,651 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:21:20,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:21:20,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:21:20,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:21:20,652 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:21:20,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:21:20,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:21:20,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:21:20,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:21:20,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:21:20,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:21:20,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:21:20,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:21:20,654 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:21:20,654 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_b6d2a52f-408e-4c45-953a-46e5764fc7f8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa90f714f155a5bf890626268a305533d9a2c78c [2020-11-28 03:21:20,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:21:20,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:21:20,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:21:20,930 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:21:20,931 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:21:20,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound20.c [2020-11-28 03:21:21,027 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/bin/uautomizer/data/22fca33b6/c5ab6d9693af4b38b3328ab3520c153a/FLAG6322added [2020-11-28 03:21:21,428 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:21:21,428 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound20.c [2020-11-28 03:21:21,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/bin/uautomizer/data/22fca33b6/c5ab6d9693af4b38b3328ab3520c153a/FLAG6322added [2020-11-28 03:21:21,810 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/bin/uautomizer/data/22fca33b6/c5ab6d9693af4b38b3328ab3520c153a [2020-11-28 03:21:21,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:21:21,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:21:21,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:21,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:21:21,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:21:21,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:21" (1/1) ... [2020-11-28 03:21:21,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a6e530b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:21, skipping insertion in model container [2020-11-28 03:21:21,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:21" (1/1) ... [2020-11-28 03:21:21,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:21:21,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:21:22,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:22,031 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:21:22,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:22,059 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:21:22,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:22 WrapperNode [2020-11-28 03:21:22,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:22,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:22,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:21:22,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:21:22,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:22" (1/1) ... [2020-11-28 03:21:22,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:22" (1/1) ... [2020-11-28 03:21:22,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:22,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:21:22,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:21:22,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:21:22,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:22" (1/1) ... [2020-11-28 03:21:22,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:22" (1/1) ... [2020-11-28 03:21:22,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:22" (1/1) ... [2020-11-28 03:21:22,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:22" (1/1) ... [2020-11-28 03:21:22,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:22" (1/1) ... [2020-11-28 03:21:22,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:22" (1/1) ... [2020-11-28 03:21:22,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:22" (1/1) ... [2020-11-28 03:21:22,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:21:22,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:21:22,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:21:22,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:21:22,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/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 03:21:22,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:21:22,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:21:22,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:21:22,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:21:22,668 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:21:22,670 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-11-28 03:21:22,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:22 BoogieIcfgContainer [2020-11-28 03:21:22,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:21:22,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:21:22,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:21:22,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:21:22,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:21:21" (1/3) ... [2020-11-28 03:21:22,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1e7326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:22, skipping insertion in model container [2020-11-28 03:21:22,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:22" (2/3) ... [2020-11-28 03:21:22,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1e7326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:22, skipping insertion in model container [2020-11-28 03:21:22,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:22" (3/3) ... [2020-11-28 03:21:22,682 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound20.c [2020-11-28 03:21:22,694 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:21:22,699 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 03:21:22,708 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 03:21:22,732 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:21:22,732 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:21:22,732 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:21:22,732 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:21:22,732 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:21:22,733 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:21:22,733 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:21:22,733 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:21:22,751 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-11-28 03:21:22,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:21:22,756 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:22,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:22,758 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:22,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:22,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2020-11-28 03:21:22,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:22,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403957200] [2020-11-28 03:21:22,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:22,964 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 03:21:22,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403957200] [2020-11-28 03:21:22,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:22,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:21:22,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530657149] [2020-11-28 03:21:22,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:21:22,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:22,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:21:22,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:21:22,992 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2020-11-28 03:21:23,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:23,025 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2020-11-28 03:21:23,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:21:23,026 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-28 03:21:23,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:23,037 INFO L225 Difference]: With dead ends: 31 [2020-11-28 03:21:23,037 INFO L226 Difference]: Without dead ends: 13 [2020-11-28 03:21:23,041 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 03:21:23,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-28 03:21:23,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-28 03:21:23,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 03:21:23,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-28 03:21:23,088 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-11-28 03:21:23,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:23,089 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-28 03:21:23,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:21:23,090 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-11-28 03:21:23,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:21:23,091 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:23,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:23,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:21:23,092 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:23,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:23,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2020-11-28 03:21:23,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:23,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534981216] [2020-11-28 03:21:23,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:23,135 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:21:23,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [597889839] [2020-11-28 03:21:23,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/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 03:21:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:23,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:21:23,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:23,285 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 03:21:23,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534981216] [2020-11-28 03:21:23,286 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:21:23,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597889839] [2020-11-28 03:21:23,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:23,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:21:23,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655414040] [2020-11-28 03:21:23,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:21:23,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:23,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:21:23,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:21:23,290 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 4 states. [2020-11-28 03:21:23,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:23,342 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-11-28 03:21:23,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:21:23,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 03:21:23,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:23,343 INFO L225 Difference]: With dead ends: 23 [2020-11-28 03:21:23,343 INFO L226 Difference]: Without dead ends: 17 [2020-11-28 03:21:23,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:21:23,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-28 03:21:23,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-11-28 03:21:23,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 03:21:23,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-28 03:21:23,348 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2020-11-28 03:21:23,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:23,348 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-28 03:21:23,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:21:23,349 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-28 03:21:23,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:21:23,349 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:23,350 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:23,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 03:21:23,562 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:23,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:23,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1863233344, now seen corresponding path program 1 times [2020-11-28 03:21:23,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:23,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583908035] [2020-11-28 03:21:23,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:23,573 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:21:23,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1265620939] [2020-11-28 03:21:23,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/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 03:21:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:23,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 03:21:23,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:23,717 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 03:21:23,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583908035] [2020-11-28 03:21:23,718 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:21:23,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265620939] [2020-11-28 03:21:23,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:21:23,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-28 03:21:23,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306865885] [2020-11-28 03:21:23,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:21:23,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:23,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:21:23,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:21:23,728 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 5 states. [2020-11-28 03:21:23,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:23,815 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2020-11-28 03:21:23,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:21:23,815 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-28 03:21:23,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:23,816 INFO L225 Difference]: With dead ends: 26 [2020-11-28 03:21:23,816 INFO L226 Difference]: Without dead ends: 20 [2020-11-28 03:21:23,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:21:23,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-28 03:21:23,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-11-28 03:21:23,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-28 03:21:23,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-11-28 03:21:23,821 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2020-11-28 03:21:23,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:23,822 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-11-28 03:21:23,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:21:23,822 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-11-28 03:21:23,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:21:23,822 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:23,823 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:24,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:21:24,023 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:24,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:24,024 INFO L82 PathProgramCache]: Analyzing trace with hash 578669199, now seen corresponding path program 2 times [2020-11-28 03:21:24,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:24,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922527698] [2020-11-28 03:21:24,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:24,036 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:21:24,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [118074779] [2020-11-28 03:21:24,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/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 03:21:24,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-28 03:21:24,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:21:24,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-28 03:21:24,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:24,188 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:24,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922527698] [2020-11-28 03:21:24,188 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:21:24,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118074779] [2020-11-28 03:21:24,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:21:24,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-28 03:21:24,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678315681] [2020-11-28 03:21:24,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:21:24,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:24,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:21:24,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:21:24,191 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2020-11-28 03:21:24,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:24,362 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-11-28 03:21:24,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:21:24,363 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-28 03:21:24,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:24,364 INFO L225 Difference]: With dead ends: 29 [2020-11-28 03:21:24,364 INFO L226 Difference]: Without dead ends: 23 [2020-11-28 03:21:24,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:21:24,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-28 03:21:24,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2020-11-28 03:21:24,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 03:21:24,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-11-28 03:21:24,379 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2020-11-28 03:21:24,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:24,380 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-11-28 03:21:24,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:21:24,380 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-11-28 03:21:24,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:21:24,381 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:24,381 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:24,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:21:24,598 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:24,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:24,598 INFO L82 PathProgramCache]: Analyzing trace with hash -858731936, now seen corresponding path program 3 times [2020-11-28 03:21:24,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:24,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186571713] [2020-11-28 03:21:24,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:24,624 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:21:24,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [63085514] [2020-11-28 03:21:24,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/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 03:21:24,678 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-28 03:21:24,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:21:24,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 03:21:24,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:24,713 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:21:24,716 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:21:24,742 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:21:24,748 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:21:24,780 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 03:21:24,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186571713] [2020-11-28 03:21:24,780 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:21:24,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63085514] [2020-11-28 03:21:24,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:21:24,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-28 03:21:24,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736543478] [2020-11-28 03:21:24,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:21:24,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:24,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:21:24,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:21:24,783 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 5 states. [2020-11-28 03:21:24,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:24,867 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-11-28 03:21:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:21:24,868 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-11-28 03:21:24,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:24,868 INFO L225 Difference]: With dead ends: 22 [2020-11-28 03:21:24,868 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:21:24,869 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:21:24,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:21:24,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:21:24,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:21:24,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:21:24,869 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-11-28 03:21:24,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:24,870 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:24,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:21:24,870 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:21:24,870 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:21:25,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:21:25,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:21:25,168 INFO L270 CegarLoopResult]: At program point L27-2(lines 27 36) the Hoare annotation is: (let ((.cse0 (= (* ULTIMATE.start_main_~x~0 2) (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)))) (or (and (= ULTIMATE.start_main_~y~0 0) .cse0) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0))) [2020-11-28 03:21:25,168 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:21:25,168 INFO L274 CegarLoopResult]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2020-11-28 03:21:25,168 INFO L274 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2020-11-28 03:21:25,168 INFO L274 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2020-11-28 03:21:25,169 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-11-28 03:21:25,169 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:21:25,169 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:21:25,169 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:21:25,169 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:21:25,169 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:21:25,169 INFO L274 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2020-11-28 03:21:25,170 INFO L270 CegarLoopResult]: At program point L10-1(lines 30 31) the Hoare annotation is: (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (* ULTIMATE.start_main_~x~0 2) (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0))) [2020-11-28 03:21:25,170 INFO L274 CegarLoopResult]: For program point L10-2(lines 10 13) no Hoare annotation was computed. [2020-11-28 03:21:25,170 INFO L277 CegarLoopResult]: At program point L10-3(lines 9 15) the Hoare annotation is: true [2020-11-28 03:21:25,170 INFO L277 CegarLoopResult]: At program point L39(lines 17 40) the Hoare annotation is: true [2020-11-28 03:21:25,170 INFO L274 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-11-28 03:21:25,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:21:25 BoogieIcfgContainer [2020-11-28 03:21:25,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:21:25,188 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:21:25,188 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:21:25,188 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:21:25,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:22" (3/4) ... [2020-11-28 03:21:25,194 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:21:25,201 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 03:21:25,202 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:21:25,202 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:21:25,203 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:21:25,239 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b6d2a52f-408e-4c45-953a-46e5764fc7f8/bin/uautomizer/witness.graphml [2020-11-28 03:21:25,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:21:25,241 INFO L168 Benchmark]: Toolchain (without parser) took 3425.44 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 47.2 MB in the beginning and 43.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:25,242 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 79.7 MB. Free memory was 55.6 MB in the beginning and 55.5 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:25,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.31 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 46.9 MB in the beginning and 73.9 MB in the end (delta: -27.1 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:25,243 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.40 ms. Allocated memory is still 96.5 MB. Free memory was 73.9 MB in the beginning and 72.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:25,244 INFO L168 Benchmark]: Boogie Preprocessor took 21.70 ms. Allocated memory is still 96.5 MB. Free memory was 72.3 MB in the beginning and 71.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:25,244 INFO L168 Benchmark]: RCFGBuilder took 556.54 ms. Allocated memory is still 96.5 MB. Free memory was 71.3 MB in the beginning and 59.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:25,245 INFO L168 Benchmark]: TraceAbstraction took 2512.46 ms. Allocated memory is still 96.5 MB. Free memory was 59.4 MB in the beginning and 45.9 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:25,246 INFO L168 Benchmark]: Witness Printer took 51.52 ms. Allocated memory is still 96.5 MB. Free memory was 45.9 MB in the beginning and 43.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:25,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 79.7 MB. Free memory was 55.6 MB in the beginning and 55.5 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 244.31 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 46.9 MB in the beginning and 73.9 MB in the end (delta: -27.1 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.40 ms. Allocated memory is still 96.5 MB. Free memory was 73.9 MB in the beginning and 72.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.70 ms. Allocated memory is still 96.5 MB. Free memory was 72.3 MB in the beginning and 71.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 556.54 ms. Allocated memory is still 96.5 MB. Free memory was 71.3 MB in the beginning and 59.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2512.46 ms. Allocated memory is still 96.5 MB. Free memory was 59.4 MB in the beginning and 45.9 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. * Witness Printer took 51.52 ms. Allocated memory is still 96.5 MB. Free memory was 45.9 MB in the beginning and 43.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: 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: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 == cond && x * 2 == y * y + y - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (y == 0 && x * 2 == y * y + y) || (1 == cond && x * 2 == y * y + y) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 22 SDslu, 75 SDs, 0 SdLazy, 88 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 42 HoareAnnotationTreeSize, 4 FomulaSimplifications, 123 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 2079 SizeOfPredicates, 18 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 14/24 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...