./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound100.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_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound100.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/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 4f53de0537ab1a664066f61626f063f9f32515d9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:10:42,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:10:42,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:10:42,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:10:42,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:10:42,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:10:42,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:10:42,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:10:42,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:10:42,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:10:42,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:10:42,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:10:42,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:10:42,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:10:42,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:10:42,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:10:42,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:10:42,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:10:42,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:10:42,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:10:42,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:10:42,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:10:42,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:10:42,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:10:42,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:10:42,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:10:42,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:10:42,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:10:42,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:10:42,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:10:42,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:10:42,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:10:42,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:10:42,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:10:42,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:10:42,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:10:42,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:10:42,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:10:42,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:10:42,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:10:42,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:10:42,703 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:10:42,728 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:10:42,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:10:42,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:10:42,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:10:42,730 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:10:42,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:10:42,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:10:42,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:10:42,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:10:42,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:10:42,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:10:42,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:10:42,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:10:42,732 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:10:42,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:10:42,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:10:42,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:10:42,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:10:42,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:10:42,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:10:42,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:10:42,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:10:42,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:10:42,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:10:42,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:10:42,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:10:42,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:10:42,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:10:42,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:10:42,735 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_f97c8839-a43b-465c-b2bc-e6a41442a07b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f53de0537ab1a664066f61626f063f9f32515d9 [2020-11-30 01:10:43,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:10:43,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:10:43,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:10:43,096 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:10:43,097 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:10:43,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound100.c [2020-11-30 01:10:43,197 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/data/cc6816753/66eaa27fab2c446e9184a76180b39a6f/FLAG953ebd407 [2020-11-30 01:10:43,800 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:10:43,800 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound100.c [2020-11-30 01:10:43,810 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/data/cc6816753/66eaa27fab2c446e9184a76180b39a6f/FLAG953ebd407 [2020-11-30 01:10:44,181 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/data/cc6816753/66eaa27fab2c446e9184a76180b39a6f [2020-11-30 01:10:44,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:10:44,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:10:44,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:10:44,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:10:44,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:10:44,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:10:44" (1/1) ... [2020-11-30 01:10:44,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@473ab433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:44, skipping insertion in model container [2020-11-30 01:10:44,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:10:44" (1/1) ... [2020-11-30 01:10:44,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:10:44,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:10:44,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:10:44,439 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:10:44,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:10:44,476 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:10:44,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:44 WrapperNode [2020-11-30 01:10:44,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:10:44,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:10:44,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:10:44,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:10:44,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:44" (1/1) ... [2020-11-30 01:10:44,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:44" (1/1) ... [2020-11-30 01:10:44,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:10:44,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:10:44,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:10:44,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:10:44,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:44" (1/1) ... [2020-11-30 01:10:44,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:44" (1/1) ... [2020-11-30 01:10:44,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:44" (1/1) ... [2020-11-30 01:10:44,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:44" (1/1) ... [2020-11-30 01:10:44,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:44" (1/1) ... [2020-11-30 01:10:44,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:44" (1/1) ... [2020-11-30 01:10:44,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:44" (1/1) ... [2020-11-30 01:10:44,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:10:44,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:10:44,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:10:44,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:10:44,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/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 [2020-11-30 01:10:44,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:10:44,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:10:44,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:10:44,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:10:45,014 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:10:45,014 INFO L298 CfgBuilder]: Removed 29 assume(true) statements. [2020-11-30 01:10:45,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:10:45 BoogieIcfgContainer [2020-11-30 01:10:45,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:10:45,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:10:45,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:10:45,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:10:45,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:10:44" (1/3) ... [2020-11-30 01:10:45,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea5f176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:10:45, skipping insertion in model container [2020-11-30 01:10:45,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:10:44" (2/3) ... [2020-11-30 01:10:45,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea5f176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:10:45, skipping insertion in model container [2020-11-30 01:10:45,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:10:45" (3/3) ... [2020-11-30 01:10:45,042 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_unwindbound100.c [2020-11-30 01:10:45,070 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:10:45,074 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-11-30 01:10:45,110 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-30 01:10:45,168 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:10:45,168 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:10:45,168 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:10:45,168 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:10:45,169 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:10:45,169 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:10:45,169 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:10:45,169 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:10:45,200 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-11-30 01:10:45,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:10:45,215 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:45,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:10:45,217 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:45,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:45,236 INFO L82 PathProgramCache]: Analyzing trace with hash 891015143, now seen corresponding path program 1 times [2020-11-30 01:10:45,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:45,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209240697] [2020-11-30 01:10:45,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:45,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:45,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209240697] [2020-11-30 01:10:45,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:45,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:10:45,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020927660] [2020-11-30 01:10:45,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:10:45,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:45,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:10:45,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:10:45,470 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2020-11-30 01:10:45,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:45,499 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2020-11-30 01:10:45,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:10:45,501 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-11-30 01:10:45,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:45,513 INFO L225 Difference]: With dead ends: 62 [2020-11-30 01:10:45,513 INFO L226 Difference]: Without dead ends: 28 [2020-11-30 01:10:45,520 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 [2020-11-30 01:10:45,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-30 01:10:45,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-30 01:10:45,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-30 01:10:45,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-11-30 01:10:45,574 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 6 [2020-11-30 01:10:45,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:45,574 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-11-30 01:10:45,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:10:45,574 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-11-30 01:10:45,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:10:45,575 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:45,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:10:45,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:10:45,576 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:45,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:45,577 INFO L82 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2020-11-30 01:10:45,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:45,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331712668] [2020-11-30 01:10:45,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:45,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:45,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331712668] [2020-11-30 01:10:45,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:45,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:10:45,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519739419] [2020-11-30 01:10:45,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:10:45,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:45,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:10:45,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:10:45,743 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 4 states. [2020-11-30 01:10:45,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:45,922 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2020-11-30 01:10:45,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:10:45,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-30 01:10:45,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:45,924 INFO L225 Difference]: With dead ends: 55 [2020-11-30 01:10:45,924 INFO L226 Difference]: Without dead ends: 51 [2020-11-30 01:10:45,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:10:45,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-30 01:10:45,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 38. [2020-11-30 01:10:45,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-30 01:10:45,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2020-11-30 01:10:45,944 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 6 [2020-11-30 01:10:45,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:45,944 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2020-11-30 01:10:45,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:10:45,945 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-11-30 01:10:45,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:10:45,946 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:45,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:45,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:10:45,950 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:45,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:45,953 INFO L82 PathProgramCache]: Analyzing trace with hash 179688749, now seen corresponding path program 1 times [2020-11-30 01:10:45,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:45,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143379428] [2020-11-30 01:10:45,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:45,984 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:10:45,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387597502] [2020-11-30 01:10:46,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/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 [2020-11-30 01:10:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:46,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:10:46,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:10:46,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:46,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143379428] [2020-11-30 01:10:46,151 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:10:46,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387597502] [2020-11-30 01:10:46,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:46,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:10:46,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459123953] [2020-11-30 01:10:46,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:10:46,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:46,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:10:46,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:10:46,155 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 4 states. [2020-11-30 01:10:46,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:46,303 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2020-11-30 01:10:46,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:10:46,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-30 01:10:46,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:46,305 INFO L225 Difference]: With dead ends: 50 [2020-11-30 01:10:46,305 INFO L226 Difference]: Without dead ends: 46 [2020-11-30 01:10:46,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:10:46,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-30 01:10:46,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2020-11-30 01:10:46,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-30 01:10:46,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-11-30 01:10:46,315 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 8 [2020-11-30 01:10:46,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:46,316 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-11-30 01:10:46,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:10:46,316 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-11-30 01:10:46,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:10:46,316 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:46,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:46,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-30 01:10:46,518 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:46,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:46,518 INFO L82 PathProgramCache]: Analyzing trace with hash 882382672, now seen corresponding path program 1 times [2020-11-30 01:10:46,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:46,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981942632] [2020-11-30 01:10:46,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:46,532 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:10:46,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365895712] [2020-11-30 01:10:46,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/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 [2020-11-30 01:10:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:46,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:10:46,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:10:46,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:46,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981942632] [2020-11-30 01:10:46,624 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:10:46,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365895712] [2020-11-30 01:10:46,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:46,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:10:46,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131376577] [2020-11-30 01:10:46,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:10:46,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:46,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:10:46,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:10:46,626 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 4 states. [2020-11-30 01:10:46,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:46,754 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2020-11-30 01:10:46,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:10:46,755 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-30 01:10:46,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:46,757 INFO L225 Difference]: With dead ends: 50 [2020-11-30 01:10:46,757 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 01:10:46,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:10:46,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 01:10:46,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2020-11-30 01:10:46,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-30 01:10:46,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-11-30 01:10:46,766 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 10 [2020-11-30 01:10:46,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:46,767 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-11-30 01:10:46,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:10:46,767 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-11-30 01:10:46,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:10:46,768 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:46,768 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:46,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:10:46,989 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:46,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:46,989 INFO L82 PathProgramCache]: Analyzing trace with hash 2079810332, now seen corresponding path program 1 times [2020-11-30 01:10:46,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:46,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599678430] [2020-11-30 01:10:46,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:47,001 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:10:47,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1850063109] [2020-11-30 01:10:47,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/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 [2020-11-30 01:10:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:47,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 01:10:47,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:10:47,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:47,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599678430] [2020-11-30 01:10:47,155 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:10:47,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850063109] [2020-11-30 01:10:47,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:10:47,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-30 01:10:47,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766612405] [2020-11-30 01:10:47,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:10:47,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:47,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:10:47,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:10:47,157 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 5 states. [2020-11-30 01:10:47,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:47,379 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2020-11-30 01:10:47,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:10:47,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-30 01:10:47,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:47,381 INFO L225 Difference]: With dead ends: 62 [2020-11-30 01:10:47,381 INFO L226 Difference]: Without dead ends: 58 [2020-11-30 01:10:47,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:10:47,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-30 01:10:47,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 46. [2020-11-30 01:10:47,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-30 01:10:47,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2020-11-30 01:10:47,396 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 14 [2020-11-30 01:10:47,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:47,396 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2020-11-30 01:10:47,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:10:47,397 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2020-11-30 01:10:47,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:10:47,398 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:47,398 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:47,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:10:47,613 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:47,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:47,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1538122751, now seen corresponding path program 1 times [2020-11-30 01:10:47,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:47,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733458665] [2020-11-30 01:10:47,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:47,625 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:10:47,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841156532] [2020-11-30 01:10:47,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/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 [2020-11-30 01:10:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:47,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-30 01:10:47,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:10:47,757 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:47,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733458665] [2020-11-30 01:10:47,757 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:10:47,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841156532] [2020-11-30 01:10:47,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:10:47,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-30 01:10:47,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572024192] [2020-11-30 01:10:47,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:10:47,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:47,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:10:47,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:10:47,759 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand 5 states. [2020-11-30 01:10:47,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:47,921 INFO L93 Difference]: Finished difference Result 59 states and 61 transitions. [2020-11-30 01:10:47,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:10:47,922 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-11-30 01:10:47,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:47,923 INFO L225 Difference]: With dead ends: 59 [2020-11-30 01:10:47,923 INFO L226 Difference]: Without dead ends: 55 [2020-11-30 01:10:47,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:10:47,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-30 01:10:47,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2020-11-30 01:10:47,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-11-30 01:10:47,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-11-30 01:10:47,932 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 16 [2020-11-30 01:10:47,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:47,933 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-11-30 01:10:47,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:10:47,933 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-11-30 01:10:47,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:10:47,934 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:47,934 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-30 01:10:48,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:10:48,149 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:48,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:48,150 INFO L82 PathProgramCache]: Analyzing trace with hash 667400610, now seen corresponding path program 1 times [2020-11-30 01:10:48,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:48,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597226754] [2020-11-30 01:10:48,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:48,162 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:10:48,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1252581397] [2020-11-30 01:10:48,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:10:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:10:48,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 01:10:48,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:10:48,298 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:48,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597226754] [2020-11-30 01:10:48,298 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:10:48,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252581397] [2020-11-30 01:10:48,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:10:48,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-30 01:10:48,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232717043] [2020-11-30 01:10:48,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:10:48,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:48,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:10:48,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:10:48,300 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 5 states. [2020-11-30 01:10:48,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:48,460 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2020-11-30 01:10:48,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:10:48,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-30 01:10:48,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:48,462 INFO L225 Difference]: With dead ends: 57 [2020-11-30 01:10:48,462 INFO L226 Difference]: Without dead ends: 47 [2020-11-30 01:10:48,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:10:48,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-30 01:10:48,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2020-11-30 01:10:48,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-30 01:10:48,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2020-11-30 01:10:48,470 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 18 [2020-11-30 01:10:48,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:48,471 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2020-11-30 01:10:48,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:10:48,471 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2020-11-30 01:10:48,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 01:10:48,472 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:48,472 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2020-11-30 01:10:48,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-30 01:10:48,689 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:48,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:48,689 INFO L82 PathProgramCache]: Analyzing trace with hash 789154926, now seen corresponding path program 2 times [2020-11-30 01:10:48,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:48,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499888744] [2020-11-30 01:10:48,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:48,708 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:10:48,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [427175200] [2020-11-30 01:10:48,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:10:48,801 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 01:10:48,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:10:48,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-30 01:10:48,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:10:48,873 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:48,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499888744] [2020-11-30 01:10:48,874 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:10:48,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427175200] [2020-11-30 01:10:48,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:10:48,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-30 01:10:48,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949751569] [2020-11-30 01:10:48,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:10:48,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:48,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:10:48,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:10:48,876 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 6 states. [2020-11-30 01:10:49,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:49,081 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2020-11-30 01:10:49,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:10:49,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-11-30 01:10:49,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:49,082 INFO L225 Difference]: With dead ends: 70 [2020-11-30 01:10:49,082 INFO L226 Difference]: Without dead ends: 66 [2020-11-30 01:10:49,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:10:49,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-30 01:10:49,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-11-30 01:10:49,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-30 01:10:49,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2020-11-30 01:10:49,091 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 22 [2020-11-30 01:10:49,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:49,092 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-11-30 01:10:49,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:10:49,092 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2020-11-30 01:10:49,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:10:49,093 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:49,093 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2020-11-30 01:10:49,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:10:49,293 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:49,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:49,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1831141167, now seen corresponding path program 2 times [2020-11-30 01:10:49,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:49,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501289407] [2020-11-30 01:10:49,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:49,301 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:10:49,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [205318121] [2020-11-30 01:10:49,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:10:49,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 01:10:49,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:10:49,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-30 01:10:49,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:10:49,440 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:10:49,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501289407] [2020-11-30 01:10:49,441 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:10:49,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205318121] [2020-11-30 01:10:49,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:10:49,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-30 01:10:49,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368390079] [2020-11-30 01:10:49,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:10:49,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:49,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:10:49,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:10:49,443 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 6 states. [2020-11-30 01:10:49,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:10:49,681 INFO L93 Difference]: Finished difference Result 67 states and 69 transitions. [2020-11-30 01:10:49,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:10:49,681 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-11-30 01:10:49,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:10:49,682 INFO L225 Difference]: With dead ends: 67 [2020-11-30 01:10:49,682 INFO L226 Difference]: Without dead ends: 63 [2020-11-30 01:10:49,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:10:49,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-30 01:10:49,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 56. [2020-11-30 01:10:49,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-30 01:10:49,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2020-11-30 01:10:49,692 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 24 [2020-11-30 01:10:49,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:10:49,692 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2020-11-30 01:10:49,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:10:49,692 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-11-30 01:10:49,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-30 01:10:49,693 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:10:49,693 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2020-11-30 01:10:49,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:10:49,921 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:10:49,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:10:49,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1210116596, now seen corresponding path program 2 times [2020-11-30 01:10:49,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:10:49,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919814939] [2020-11-30 01:10:49,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:10:49,932 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:10:49,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1050189282] [2020-11-30 01:10:49,933 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:10:49,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-30 01:10:49,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:10:49,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 01:10:49,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:10:50,015 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:10:50,016 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:10:50,070 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:10:50,070 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:10:52,170 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:10:58,361 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-30 01:10:58,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919814939] [2020-11-30 01:10:58,362 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:10:58,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050189282] [2020-11-30 01:10:58,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:10:58,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 01:10:58,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609485649] [2020-11-30 01:10:58,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:10:58,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:10:58,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:10:58,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:10:58,364 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 7 states. [2020-11-30 01:10:58,610 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 18 [2020-11-30 01:11:07,177 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2020-11-30 01:11:13,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:11:13,863 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2020-11-30 01:11:13,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:11:13,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-11-30 01:11:13,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:11:13,868 INFO L225 Difference]: With dead ends: 56 [2020-11-30 01:11:13,868 INFO L226 Difference]: Without dead ends: 54 [2020-11-30 01:11:13,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-11-30 01:11:13,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-30 01:11:13,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-30 01:11:13,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-30 01:11:13,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2020-11-30 01:11:13,884 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 26 [2020-11-30 01:11:13,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:11:13,885 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2020-11-30 01:11:13,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:11:13,885 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2020-11-30 01:11:13,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-30 01:11:13,886 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:11:13,886 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:11:14,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-30 01:11:14,113 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:11:14,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:11:14,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1873493846, now seen corresponding path program 1 times [2020-11-30 01:11:14,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:11:14,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878919232] [2020-11-30 01:11:14,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:11:14,129 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:11:14,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1389228731] [2020-11-30 01:11:14,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:11:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:11:14,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:11:14,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:11:14,259 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:11:14,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878919232] [2020-11-30 01:11:14,260 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:11:14,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389228731] [2020-11-30 01:11:14,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:11:14,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-30 01:11:14,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466942795] [2020-11-30 01:11:14,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:11:14,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:11:14,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:11:14,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:11:14,262 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 6 states. [2020-11-30 01:11:14,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:11:14,365 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2020-11-30 01:11:14,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:11:14,366 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-11-30 01:11:14,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:11:14,367 INFO L225 Difference]: With dead ends: 62 [2020-11-30 01:11:14,367 INFO L226 Difference]: Without dead ends: 54 [2020-11-30 01:11:14,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:11:14,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-30 01:11:14,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-30 01:11:14,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-30 01:11:14,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2020-11-30 01:11:14,384 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 27 [2020-11-30 01:11:14,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:11:14,384 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2020-11-30 01:11:14,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:11:14,385 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-11-30 01:11:14,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-30 01:11:14,386 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:11:14,386 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2020-11-30 01:11:14,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:11:14,588 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:11:14,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:11:14,589 INFO L82 PathProgramCache]: Analyzing trace with hash 600720320, now seen corresponding path program 3 times [2020-11-30 01:11:14,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:11:14,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434865295] [2020-11-30 01:11:14,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:11:14,599 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:11:14,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766466513] [2020-11-30 01:11:14,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:11:14,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-11-30 01:11:14,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:11:14,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 01:11:14,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:11:14,727 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:11:14,727 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:11:14,851 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-30 01:11:14,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434865295] [2020-11-30 01:11:14,851 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:11:14,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766466513] [2020-11-30 01:11:14,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:11:14,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-30 01:11:14,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497814779] [2020-11-30 01:11:14,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:11:14,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:11:14,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:11:14,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:11:14,853 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand 5 states. [2020-11-30 01:11:15,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:11:15,102 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2020-11-30 01:11:15,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:11:15,105 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-30 01:11:15,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:11:15,106 INFO L225 Difference]: With dead ends: 54 [2020-11-30 01:11:15,106 INFO L226 Difference]: Without dead ends: 50 [2020-11-30 01:11:15,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:11:15,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-30 01:11:15,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-11-30 01:11:15,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-30 01:11:15,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2020-11-30 01:11:15,116 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 30 [2020-11-30 01:11:15,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:11:15,116 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2020-11-30 01:11:15,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:11:15,116 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2020-11-30 01:11:15,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-30 01:11:15,118 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:11:15,118 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1] [2020-11-30 01:11:15,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:11:15,333 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:11:15,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:11:15,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1766796195, now seen corresponding path program 3 times [2020-11-30 01:11:15,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:11:15,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648633318] [2020-11-30 01:11:15,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:11:15,356 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:11:15,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1313099749] [2020-11-30 01:11:15,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:11:15,438 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-11-30 01:11:15,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:11:15,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 24 conjunts are in the unsatisfiable core [2020-11-30 01:11:15,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:11:15,522 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:11:15,522 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:11:15,756 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-30 01:11:15,758 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:11:15,759 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:11:28,604 WARN L193 SmtUtils]: Spent 6.30 s on a formula simplification that was a NOOP. DAG size: 26 [2020-11-30 01:11:28,607 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:11:28,607 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:11:38,648 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification that was a NOOP. DAG size: 18 [2020-11-30 01:11:38,666 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:11:39,569 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-30 01:11:39,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648633318] [2020-11-30 01:11:39,570 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:11:39,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313099749] [2020-11-30 01:11:39,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:11:39,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-30 01:11:39,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946762011] [2020-11-30 01:11:39,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:11:39,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:11:39,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:11:39,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=64, Unknown=5, NotChecked=0, Total=90 [2020-11-30 01:11:39,572 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand 10 states. [2020-11-30 01:11:50,320 WARN L193 SmtUtils]: Spent 10.40 s on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2020-11-30 01:12:04,704 WARN L193 SmtUtils]: Spent 14.24 s on a formula simplification. DAG size of input: 45 DAG size of output: 31 [2020-11-30 01:12:40,691 WARN L193 SmtUtils]: Spent 13.30 s on a formula simplification that was a NOOP. DAG size: 36 [2020-11-30 01:13:12,803 WARN L193 SmtUtils]: Spent 10.42 s on a formula simplification that was a NOOP. DAG size: 27 [2020-11-30 01:13:32,952 WARN L193 SmtUtils]: Spent 5.69 s on a formula simplification. DAG size of input: 35 DAG size of output: 22 [2020-11-30 01:13:45,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:13:45,357 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2020-11-30 01:13:45,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:13:45,359 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-11-30 01:13:45,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:13:45,360 INFO L225 Difference]: With dead ends: 56 [2020-11-30 01:13:45,360 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:13:45,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 108.8s TimeCoverageRelationStatistics Valid=66, Invalid=158, Unknown=16, NotChecked=0, Total=240 [2020-11-30 01:13:45,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:13:45,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:13:45,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:13:45,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:13:45,361 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-11-30 01:13:45,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:13:45,361 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:13:45,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:13:45,362 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:13:45,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:13:45,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-30 01:13:45,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:13:52,871 WARN L193 SmtUtils]: Spent 7.19 s on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2020-11-30 01:14:06,969 WARN L193 SmtUtils]: Spent 14.10 s on a formula simplification. DAG size of input: 36 DAG size of output: 30 [2020-11-30 01:14:18,796 WARN L193 SmtUtils]: Spent 11.83 s on a formula simplification. DAG size of input: 53 DAG size of output: 30 [2020-11-30 01:14:37,302 WARN L193 SmtUtils]: Spent 18.50 s on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2020-11-30 01:14:44,990 WARN L193 SmtUtils]: Spent 7.69 s on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2020-11-30 01:15:08,929 WARN L193 SmtUtils]: Spent 23.94 s on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-11-30 01:15:08,932 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 01:15:08,933 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 01:15:08,933 INFO L277 CegarLoopResult]: At program point L48(lines 21 49) the Hoare annotation is: true [2020-11-30 01:15:08,933 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:15:08,933 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 01:15:08,933 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:15:08,933 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:15:08,933 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 01:15:08,933 INFO L274 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2020-11-30 01:15:08,933 INFO L270 CegarLoopResult]: At program point L12-1(lines 11 17) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0)) (.cse1 (* ULTIMATE.start_main_~a~0 2))) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) 1) (+ (* .cse0 4) (* ULTIMATE.start_main_~t~0 2))) (= (+ .cse1 1) ULTIMATE.start_main_~t~0) (= (+ (* .cse0 2) (* (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~s~0) 2) (* ULTIMATE.start_main_~s~0 2)) (+ (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~s~0) (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) 1)) (= ULTIMATE.start_main_~s~0 (+ .cse0 .cse1 1)))) [2020-11-30 01:15:08,933 INFO L274 CegarLoopResult]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2020-11-30 01:15:08,934 INFO L270 CegarLoopResult]: At program point L12-3(lines 11 17) the Hoare annotation is: (let ((.cse1 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0)) (.cse2 (* ULTIMATE.start_main_~a~0 2))) (and (= ULTIMATE.start_main_~s~0 (let ((.cse0 (div (+ ULTIMATE.start_main_~t~0 (- 1)) 2))) (+ (* .cse0 2) (* .cse0 .cse0) 1))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) 1) (+ (* .cse1 4) (* ULTIMATE.start_main_~t~0 2))) (= (+ .cse2 1) ULTIMATE.start_main_~t~0) (= (+ (* .cse1 2) (* (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~s~0) 2) (* ULTIMATE.start_main_~s~0 2)) (+ (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~s~0) (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) 1)) (= ULTIMATE.start_main_~s~0 (+ .cse1 .cse2 1)))) [2020-11-30 01:15:08,934 INFO L274 CegarLoopResult]: For program point L12-4(lines 12 15) no Hoare annotation was computed. [2020-11-30 01:15:08,934 INFO L270 CegarLoopResult]: At program point L12-5(lines 36 37) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0)) (.cse1 (* ULTIMATE.start_main_~a~0 2))) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) 1) (+ (* .cse0 4) (* ULTIMATE.start_main_~t~0 2))) (= (+ .cse1 1) ULTIMATE.start_main_~t~0) (= (+ (* .cse0 2) (* (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~s~0) 2) (* ULTIMATE.start_main_~s~0 2)) (+ (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~s~0) (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) 1)) (= ULTIMATE.start_main_~s~0 (+ .cse0 .cse1 1)))) [2020-11-30 01:15:08,934 INFO L274 CegarLoopResult]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2020-11-30 01:15:08,934 INFO L270 CegarLoopResult]: At program point L12-7(lines 11 17) the Hoare annotation is: (let ((.cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)))) (or (and .cse0 (= ULTIMATE.start_main_~a~0 1) (= ULTIMATE.start_main_~t~0 3) (= ULTIMATE.start_main_~s~0 (+ ULTIMATE.start_main_~t~0 1))) (and .cse0 (= ULTIMATE.start_main_~s~0 1) (= ULTIMATE.start_main_~a~0 0) (= ULTIMATE.start_main_~t~0 1)) (let ((.cse1 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0)) (.cse2 (* ULTIMATE.start_main_~a~0 2))) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) 1) (+ (* .cse1 4) (* ULTIMATE.start_main_~t~0 2))) (= (+ .cse2 1) ULTIMATE.start_main_~t~0) (= ULTIMATE.start_main_~s~0 (+ .cse1 .cse2 1)))))) [2020-11-30 01:15:08,934 INFO L274 CegarLoopResult]: For program point L12-8(lines 12 15) no Hoare annotation was computed. [2020-11-30 01:15:08,934 INFO L270 CegarLoopResult]: At program point L12-9(lines 11 17) the Hoare annotation is: (let ((.cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)))) (or (and .cse0 (= ULTIMATE.start_main_~s~0 1) (= ULTIMATE.start_main_~t~0 1)) (and .cse0 (= ULTIMATE.start_main_~t~0 3) (= ULTIMATE.start_main_~s~0 (+ ULTIMATE.start_main_~t~0 1))) (let ((.cse1 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0)) (.cse2 (* ULTIMATE.start_main_~a~0 2))) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) 1) (+ (* .cse1 4) (* ULTIMATE.start_main_~t~0 2))) (= (+ .cse2 1) ULTIMATE.start_main_~t~0) (= ULTIMATE.start_main_~s~0 (+ .cse1 .cse2 1)))))) [2020-11-30 01:15:08,934 INFO L274 CegarLoopResult]: For program point L12-10(lines 12 15) no Hoare annotation was computed. [2020-11-30 01:15:08,934 INFO L277 CegarLoopResult]: At program point L12-11(lines 11 17) the Hoare annotation is: true [2020-11-30 01:15:08,935 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:15:08,935 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 01:15:08,935 INFO L274 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2020-11-30 01:15:08,935 INFO L274 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2020-11-30 01:15:08,935 INFO L274 CegarLoopResult]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2020-11-30 01:15:08,935 INFO L274 CegarLoopResult]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2020-11-30 01:15:08,935 INFO L274 CegarLoopResult]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2020-11-30 01:15:08,935 INFO L274 CegarLoopResult]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2020-11-30 01:15:08,935 INFO L274 CegarLoopResult]: For program point L30-1(lines 30 42) no Hoare annotation was computed. [2020-11-30 01:15:08,935 INFO L270 CegarLoopResult]: At program point L30-3(lines 30 42) the Hoare annotation is: (let ((.cse1 (* ULTIMATE.start_main_~a~0 2)) (.cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0))) (or (and (<= ~counter~0 0) (= ULTIMATE.start_main_~a~0 0) (= ULTIMATE.start_main_~t~0 1) (= ULTIMATE.start_main_~s~0 (+ .cse0 .cse1 1))) (and (= (+ (* ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) 1) (+ (* .cse0 4) (* ULTIMATE.start_main_~t~0 2))) (= (+ .cse1 1) ULTIMATE.start_main_~t~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~s~0 (+ .cse0 ULTIMATE.start_main_~t~0))))) [2020-11-30 01:15:08,935 INFO L274 CegarLoopResult]: For program point L30-4(lines 30 42) no Hoare annotation was computed. [2020-11-30 01:15:08,935 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 01:15:08,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:15:08 BoogieIcfgContainer [2020-11-30 01:15:08,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:15:08,957 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:15:08,957 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:15:08,957 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:15:08,958 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:10:45" (3/4) ... [2020-11-30 01:15:08,961 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:15:08,971 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-30 01:15:08,972 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:15:08,972 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:15:08,972 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:15:09,017 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f97c8839-a43b-465c-b2bc-e6a41442a07b/bin/uautomizer/witness.graphml [2020-11-30 01:15:09,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:15:09,018 INFO L168 Benchmark]: Toolchain (without parser) took 264832.75 ms. Allocated memory was 81.8 MB in the beginning and 130.0 MB in the end (delta: 48.2 MB). Free memory was 46.3 MB in the beginning and 81.1 MB in the end (delta: -34.7 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:15:09,019 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 81.8 MB. Free memory was 62.5 MB in the beginning and 62.5 MB in the end (delta: 44.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:15:09,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.07 ms. Allocated memory is still 81.8 MB. Free memory was 46.1 MB in the beginning and 60.1 MB in the end (delta: -14.0 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:15:09,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.75 ms. Allocated memory is still 81.8 MB. Free memory was 60.1 MB in the beginning and 58.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:15:09,020 INFO L168 Benchmark]: Boogie Preprocessor took 25.77 ms. Allocated memory is still 81.8 MB. Free memory was 58.6 MB in the beginning and 57.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:15:09,021 INFO L168 Benchmark]: RCFGBuilder took 482.26 ms. Allocated memory is still 81.8 MB. Free memory was 57.4 MB in the beginning and 43.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:15:09,022 INFO L168 Benchmark]: TraceAbstraction took 263926.39 ms. Allocated memory was 81.8 MB in the beginning and 130.0 MB in the end (delta: 48.2 MB). Free memory was 43.1 MB in the beginning and 84.2 MB in the end (delta: -41.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:15:09,022 INFO L168 Benchmark]: Witness Printer took 60.74 ms. Allocated memory is still 130.0 MB. Free memory was 84.2 MB in the beginning and 81.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:15:09,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 81.8 MB. Free memory was 62.5 MB in the beginning and 62.5 MB in the end (delta: 44.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 283.07 ms. Allocated memory is still 81.8 MB. Free memory was 46.1 MB in the beginning and 60.1 MB in the end (delta: -14.0 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.75 ms. Allocated memory is still 81.8 MB. Free memory was 60.1 MB in the beginning and 58.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.77 ms. Allocated memory is still 81.8 MB. Free memory was 58.6 MB in the beginning and 57.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 482.26 ms. Allocated memory is still 81.8 MB. Free memory was 57.4 MB in the beginning and 43.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 263926.39 ms. Allocated memory was 81.8 MB in the beginning and 130.0 MB in the end (delta: 48.2 MB). Free memory was 43.1 MB in the beginning and 84.2 MB in the end (delta: -41.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. * Witness Printer took 60.74 ms. Allocated memory is still 130.0 MB. Free memory was 84.2 MB in the beginning and 81.1 MB in the end (delta: 3.1 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: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((!(0 == cond) && a == 1) && t == 3) && s == t + 1) || (((!(0 == cond) && s == 1) && a == 0) && t == 1)) || (((1 == cond && t * t + 1 == a * a * 4 + t * 2) && a * 2 + 1 == t) && s == a * a + a * 2 + 1) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((1 == cond && t * t + 1 == a * a * 4 + t * 2) && a * 2 + 1 == t) && a * a * 2 + a * a * s * 2 + s * 2 == s * s + a * a * a * a + 1) && s == a * a + a * 2 + 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((counter <= 0 && a == 0) && t == 1) && s == a * a + a * 2 + 1) || (((t * t + 1 == a * a * 4 + t * 2 && a * 2 + 1 == t) && 1 <= cond) && s == a * a + t) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((1 == cond && t * t + 1 == a * a * 4 + t * 2) && a * 2 + 1 == t) && a * a * 2 + a * a * s * 2 + s * 2 == s * s + a * a * a * a + 1) && s == a * a + a * 2 + 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((!(0 == cond) && s == 1) && t == 1) || ((!(0 == cond) && t == 3) && s == t + 1)) || (((1 == cond && t * t + 1 == a * a * 4 + t * 2) && a * 2 + 1 == t) && s == a * a + a * 2 + 1) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((s == (t + -1) / 2 * 2 + (t + -1) / 2 * ((t + -1) / 2) + 1 && 1 == cond) && t * t + 1 == a * a * 4 + t * 2) && a * 2 + 1 == t) && a * a * 2 + a * a * s * 2 + s * 2 == s * s + a * a * a * a + 1) && s == a * a + a * 2 + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 180.3s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 143.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 83.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 272 SDtfs, 268 SDslu, 535 SDs, 0 SdLazy, 596 SolverSat, 144 SolverUnsat, 24 SolverUnknown, 0 SolverNotchecked, 55.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 184 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 110.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 63 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 35 NumberOfFragments, 392 HoareAnnotationTreeSize, 8 FomulaSimplifications, 4009 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 180 FormulaSimplificationTreeSizeReductionInter, 83.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 33.3s InterpolantComputationTime, 239 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 29583 SizeOfPredicates, 58 NumberOfNonLiveVariables, 962 ConjunctsInSsa, 143 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 92/153 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...