./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.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_1d7d579d-2889-4d43-90ba-e23ee87ed613/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/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 32b43cd88a17bb2f94fc5ece2031f89d5133ff9b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 00:37:24,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:37:24,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:37:24,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:37:24,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:37:24,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:37:24,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:37:24,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:37:24,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:37:24,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:37:24,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:37:24,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:37:24,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:37:24,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:37:24,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:37:24,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:37:24,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:37:24,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:37:24,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:37:24,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:37:24,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:37:24,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:37:24,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:37:24,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:37:24,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:37:24,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:37:24,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:37:24,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:37:24,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:37:24,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:37:24,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:37:24,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:37:24,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:37:24,431 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:37:24,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:37:24,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:37:24,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:37:24,434 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:37:24,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:37:24,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:37:24,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:37:24,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:37:24,461 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:37:24,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:37:24,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:37:24,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:37:24,463 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:37:24,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:37:24,464 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:37:24,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:37:24,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:37:24,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:37:24,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:37:24,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:37:24,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:37:24,465 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:37:24,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:37:24,466 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:37:24,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:37:24,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:37:24,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:37:24,467 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:37:24,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:37:24,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:37:24,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:37:24,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:37:24,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:37:24,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:37:24,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:37:24,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:37:24,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:37:24,469 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_1d7d579d-2889-4d43-90ba-e23ee87ed613/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32b43cd88a17bb2f94fc5ece2031f89d5133ff9b [2020-11-30 00:37:24,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:37:24,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:37:24,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:37:24,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:37:24,763 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:37:24,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.c [2020-11-30 00:37:24,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/bin/uautomizer/data/304b74468/90ebfb823d054a8cac5ac856d0a951a1/FLAGeeb02b187 [2020-11-30 00:37:25,223 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:37:25,224 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.c [2020-11-30 00:37:25,233 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/bin/uautomizer/data/304b74468/90ebfb823d054a8cac5ac856d0a951a1/FLAGeeb02b187 [2020-11-30 00:37:25,639 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/bin/uautomizer/data/304b74468/90ebfb823d054a8cac5ac856d0a951a1 [2020-11-30 00:37:25,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:37:25,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:37:25,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:37:25,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:37:25,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:37:25,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:37:25" (1/1) ... [2020-11-30 00:37:25,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4be06c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:25, skipping insertion in model container [2020-11-30 00:37:25,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:37:25" (1/1) ... [2020-11-30 00:37:25,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:37:25,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:37:25,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:37:25,887 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:37:25,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:37:25,947 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:37:25,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:25 WrapperNode [2020-11-30 00:37:25,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:37:25,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:37:25,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:37:25,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:37:25,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:25" (1/1) ... [2020-11-30 00:37:25,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:25" (1/1) ... [2020-11-30 00:37:25,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:37:25,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:37:25,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:37:25,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:37:25,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:25" (1/1) ... [2020-11-30 00:37:25,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:25" (1/1) ... [2020-11-30 00:37:25,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:25" (1/1) ... [2020-11-30 00:37:25,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:25" (1/1) ... [2020-11-30 00:37:25,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:25" (1/1) ... [2020-11-30 00:37:25,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:25" (1/1) ... [2020-11-30 00:37:26,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:25" (1/1) ... [2020-11-30 00:37:26,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:37:26,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:37:26,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:37:26,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:37:26,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/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 00:37:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:37:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:37:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:37:26,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:37:26,379 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:37:26,380 INFO L298 CfgBuilder]: Removed 29 assume(true) statements. [2020-11-30 00:37:26,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:37:26 BoogieIcfgContainer [2020-11-30 00:37:26,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:37:26,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:37:26,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:37:26,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:37:26,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:37:25" (1/3) ... [2020-11-30 00:37:26,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73328a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:37:26, skipping insertion in model container [2020-11-30 00:37:26,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:37:25" (2/3) ... [2020-11-30 00:37:26,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73328a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:37:26, skipping insertion in model container [2020-11-30 00:37:26,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:37:26" (3/3) ... [2020-11-30 00:37:26,401 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_unwindbound5.c [2020-11-30 00:37:26,412 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:37:26,417 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-11-30 00:37:26,428 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-30 00:37:26,452 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:37:26,453 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:37:26,453 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:37:26,453 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:37:26,453 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:37:26,453 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:37:26,454 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:37:26,454 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:37:26,468 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-11-30 00:37:26,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:37:26,473 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:37:26,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:37:26,474 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 00:37:26,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:26,488 INFO L82 PathProgramCache]: Analyzing trace with hash 891015143, now seen corresponding path program 1 times [2020-11-30 00:37:26,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:26,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868416346] [2020-11-30 00:37:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:26,619 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 00:37:26,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868416346] [2020-11-30 00:37:26,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:37:26,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:37:26,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054065183] [2020-11-30 00:37:26,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:37:26,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:26,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:37:26,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:37:26,640 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2020-11-30 00:37:26,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:26,658 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2020-11-30 00:37:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:37:26,659 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-11-30 00:37:26,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:37:26,665 INFO L225 Difference]: With dead ends: 62 [2020-11-30 00:37:26,665 INFO L226 Difference]: Without dead ends: 28 [2020-11-30 00:37:26,668 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 00:37:26,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-30 00:37:26,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-30 00:37:26,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-30 00:37:26,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-11-30 00:37:26,702 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 6 [2020-11-30 00:37:26,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:37:26,702 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-11-30 00:37:26,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:37:26,702 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-11-30 00:37:26,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:37:26,703 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:37:26,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:37:26,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:37:26,704 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 00:37:26,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:26,705 INFO L82 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2020-11-30 00:37:26,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:26,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463418930] [2020-11-30 00:37:26,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:26,838 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 00:37:26,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463418930] [2020-11-30 00:37:26,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:37:26,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:37:26,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119174656] [2020-11-30 00:37:26,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:37:26,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:26,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:37:26,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:37:26,843 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 4 states. [2020-11-30 00:37:27,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:27,001 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2020-11-30 00:37:27,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:37:27,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-30 00:37:27,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:37:27,003 INFO L225 Difference]: With dead ends: 55 [2020-11-30 00:37:27,003 INFO L226 Difference]: Without dead ends: 51 [2020-11-30 00:37:27,004 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 00:37:27,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-30 00:37:27,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 38. [2020-11-30 00:37:27,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-30 00:37:27,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2020-11-30 00:37:27,014 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 6 [2020-11-30 00:37:27,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:37:27,014 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2020-11-30 00:37:27,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:37:27,015 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-11-30 00:37:27,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:37:27,015 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:37:27,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:27,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:37:27,016 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 00:37:27,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:27,017 INFO L82 PathProgramCache]: Analyzing trace with hash 179688749, now seen corresponding path program 1 times [2020-11-30 00:37:27,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:27,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558993367] [2020-11-30 00:37:27,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:27,036 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:37:27,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1146851410] [2020-11-30 00:37:27,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/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 00:37:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:27,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:37:27,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:27,195 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 00:37:27,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558993367] [2020-11-30 00:37:27,196 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:37:27,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146851410] [2020-11-30 00:37:27,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:37:27,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:37:27,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681022585] [2020-11-30 00:37:27,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:37:27,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:27,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:37:27,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:37:27,199 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 4 states. [2020-11-30 00:37:27,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:27,319 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2020-11-30 00:37:27,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:37:27,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-30 00:37:27,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:37:27,321 INFO L225 Difference]: With dead ends: 50 [2020-11-30 00:37:27,321 INFO L226 Difference]: Without dead ends: 46 [2020-11-30 00:37:27,322 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 00:37:27,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-30 00:37:27,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2020-11-30 00:37:27,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-30 00:37:27,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-11-30 00:37:27,330 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 8 [2020-11-30 00:37:27,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:37:27,330 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-11-30 00:37:27,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:37:27,330 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-11-30 00:37:27,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:37:27,331 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:37:27,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:27,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-30 00:37:27,535 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 00:37:27,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:27,535 INFO L82 PathProgramCache]: Analyzing trace with hash 882382672, now seen corresponding path program 1 times [2020-11-30 00:37:27,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:27,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466211540] [2020-11-30 00:37:27,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:27,548 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:37:27,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945113573] [2020-11-30 00:37:27,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/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 00:37:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:27,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:37:27,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:27,645 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 00:37:27,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466211540] [2020-11-30 00:37:27,646 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:37:27,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945113573] [2020-11-30 00:37:27,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:37:27,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:37:27,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614773931] [2020-11-30 00:37:27,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:37:27,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:27,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:37:27,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:37:27,648 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 4 states. [2020-11-30 00:37:27,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:27,754 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2020-11-30 00:37:27,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:37:27,755 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-30 00:37:27,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:37:27,756 INFO L225 Difference]: With dead ends: 50 [2020-11-30 00:37:27,756 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 00:37:27,757 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 00:37:27,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 00:37:27,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2020-11-30 00:37:27,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-30 00:37:27,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-11-30 00:37:27,770 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 10 [2020-11-30 00:37:27,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:37:27,771 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-11-30 00:37:27,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:37:27,771 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-11-30 00:37:27,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:37:27,772 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:37:27,772 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:27,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:37:27,988 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 00:37:27,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:27,988 INFO L82 PathProgramCache]: Analyzing trace with hash 2079810332, now seen corresponding path program 1 times [2020-11-30 00:37:27,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:27,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156334777] [2020-11-30 00:37:27,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:28,000 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:37:28,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [630677128] [2020-11-30 00:37:28,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/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 00:37:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:28,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:37:28,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:28,099 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 00:37:28,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156334777] [2020-11-30 00:37:28,099 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:37:28,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630677128] [2020-11-30 00:37:28,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:37:28,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-30 00:37:28,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252680478] [2020-11-30 00:37:28,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:37:28,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:28,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:37:28,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:37:28,101 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 5 states. [2020-11-30 00:37:28,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:28,261 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2020-11-30 00:37:28,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:37:28,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-30 00:37:28,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:37:28,263 INFO L225 Difference]: With dead ends: 62 [2020-11-30 00:37:28,263 INFO L226 Difference]: Without dead ends: 58 [2020-11-30 00:37:28,263 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 00:37:28,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-30 00:37:28,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 46. [2020-11-30 00:37:28,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-30 00:37:28,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2020-11-30 00:37:28,280 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 14 [2020-11-30 00:37:28,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:37:28,282 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2020-11-30 00:37:28,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:37:28,282 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2020-11-30 00:37:28,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:37:28,284 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:37:28,284 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:28,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:37:28,508 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 00:37:28,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:28,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1538122751, now seen corresponding path program 1 times [2020-11-30 00:37:28,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:28,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677762942] [2020-11-30 00:37:28,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:28,519 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:37:28,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803343012] [2020-11-30 00:37:28,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/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 00:37:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:28,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-30 00:37:28,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:28,624 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 00:37:28,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677762942] [2020-11-30 00:37:28,624 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:37:28,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803343012] [2020-11-30 00:37:28,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:37:28,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-30 00:37:28,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798298434] [2020-11-30 00:37:28,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:37:28,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:28,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:37:28,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:37:28,626 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand 5 states. [2020-11-30 00:37:28,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:28,766 INFO L93 Difference]: Finished difference Result 59 states and 61 transitions. [2020-11-30 00:37:28,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:37:28,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-11-30 00:37:28,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:37:28,767 INFO L225 Difference]: With dead ends: 59 [2020-11-30 00:37:28,767 INFO L226 Difference]: Without dead ends: 55 [2020-11-30 00:37:28,768 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 00:37:28,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-30 00:37:28,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2020-11-30 00:37:28,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-11-30 00:37:28,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-11-30 00:37:28,775 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 16 [2020-11-30 00:37:28,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:37:28,775 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-11-30 00:37:28,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:37:28,776 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-11-30 00:37:28,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:37:28,776 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:37:28,776 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:28,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:37:28,996 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 00:37:28,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:28,996 INFO L82 PathProgramCache]: Analyzing trace with hash 667400610, now seen corresponding path program 1 times [2020-11-30 00:37:28,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:28,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801143690] [2020-11-30 00:37:28,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:29,007 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:37:29,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [754849177] [2020-11-30 00:37:29,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/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 00:37:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:29,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:37:29,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:29,110 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 00:37:29,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801143690] [2020-11-30 00:37:29,110 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:37:29,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754849177] [2020-11-30 00:37:29,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:37:29,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-30 00:37:29,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001597104] [2020-11-30 00:37:29,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:37:29,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:29,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:37:29,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:37:29,112 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 5 states. [2020-11-30 00:37:29,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:29,255 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2020-11-30 00:37:29,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:37:29,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-30 00:37:29,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:37:29,257 INFO L225 Difference]: With dead ends: 57 [2020-11-30 00:37:29,257 INFO L226 Difference]: Without dead ends: 47 [2020-11-30 00:37:29,258 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 00:37:29,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-30 00:37:29,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2020-11-30 00:37:29,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-30 00:37:29,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2020-11-30 00:37:29,277 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 18 [2020-11-30 00:37:29,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:37:29,278 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2020-11-30 00:37:29,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:37:29,278 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2020-11-30 00:37:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 00:37:29,279 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:37:29,279 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2020-11-30 00:37:29,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-30 00:37:29,496 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 00:37:29,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:29,496 INFO L82 PathProgramCache]: Analyzing trace with hash 789154926, now seen corresponding path program 2 times [2020-11-30 00:37:29,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:29,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641481364] [2020-11-30 00:37:29,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:29,504 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:37:29,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [343418398] [2020-11-30 00:37:29,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/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 00:37:29,552 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:37:29,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:37:29,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-30 00:37:29,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:29,609 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 00:37:29,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641481364] [2020-11-30 00:37:29,609 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:37:29,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343418398] [2020-11-30 00:37:29,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:37:29,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-30 00:37:29,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107131857] [2020-11-30 00:37:29,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:37:29,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:29,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:37:29,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:37:29,611 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 6 states. [2020-11-30 00:37:29,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:29,773 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2020-11-30 00:37:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:37:29,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-11-30 00:37:29,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:37:29,774 INFO L225 Difference]: With dead ends: 70 [2020-11-30 00:37:29,774 INFO L226 Difference]: Without dead ends: 66 [2020-11-30 00:37:29,775 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 00:37:29,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-30 00:37:29,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-11-30 00:37:29,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-30 00:37:29,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2020-11-30 00:37:29,785 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 22 [2020-11-30 00:37:29,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:37:29,785 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-11-30 00:37:29,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:37:29,785 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2020-11-30 00:37:29,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 00:37:29,786 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:37:29,786 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2020-11-30 00:37:30,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:37:30,016 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 00:37:30,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:30,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1831141167, now seen corresponding path program 2 times [2020-11-30 00:37:30,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:30,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914286728] [2020-11-30 00:37:30,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:30,026 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:37:30,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229984250] [2020-11-30 00:37:30,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/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 00:37:30,087 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:37:30,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:37:30,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-30 00:37:30,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:30,151 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 00:37:30,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914286728] [2020-11-30 00:37:30,151 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:37:30,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229984250] [2020-11-30 00:37:30,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:37:30,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-30 00:37:30,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802705587] [2020-11-30 00:37:30,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:37:30,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:30,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:37:30,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:37:30,153 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 6 states. [2020-11-30 00:37:30,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:30,365 INFO L93 Difference]: Finished difference Result 67 states and 69 transitions. [2020-11-30 00:37:30,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:37:30,365 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-11-30 00:37:30,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:37:30,366 INFO L225 Difference]: With dead ends: 67 [2020-11-30 00:37:30,366 INFO L226 Difference]: Without dead ends: 63 [2020-11-30 00:37:30,367 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 00:37:30,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-30 00:37:30,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 56. [2020-11-30 00:37:30,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-30 00:37:30,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2020-11-30 00:37:30,379 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 24 [2020-11-30 00:37:30,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:37:30,379 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2020-11-30 00:37:30,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:37:30,380 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-11-30 00:37:30,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-30 00:37:30,380 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:37:30,381 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2020-11-30 00:37:30,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:37:30,595 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 00:37:30,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:30,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1210116596, now seen corresponding path program 2 times [2020-11-30 00:37:30,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:30,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792349310] [2020-11-30 00:37:30,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:30,604 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:37:30,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591980820] [2020-11-30 00:37:30,604 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/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 00:37:30,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-30 00:37:30,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:37:30,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 00:37:30,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:30,703 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:37:30,703 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:37:30,751 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:37:30,752 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:37:32,822 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:37:39,037 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 00:37:39,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792349310] [2020-11-30 00:37:39,038 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:37:39,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591980820] [2020-11-30 00:37:39,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:37:39,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 00:37:39,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627274883] [2020-11-30 00:37:39,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:37:39,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:39,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:37:39,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:37:39,040 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 7 states. [2020-11-30 00:37:50,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:50,307 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2020-11-30 00:37:50,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 00:37:50,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-11-30 00:37:50,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:37:50,311 INFO L225 Difference]: With dead ends: 56 [2020-11-30 00:37:50,311 INFO L226 Difference]: Without dead ends: 54 [2020-11-30 00:37:50,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-11-30 00:37:50,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-30 00:37:50,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-30 00:37:50,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-30 00:37:50,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2020-11-30 00:37:50,319 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 26 [2020-11-30 00:37:50,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:37:50,319 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2020-11-30 00:37:50,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:37:50,324 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2020-11-30 00:37:50,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-30 00:37:50,330 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:37:50,330 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 00:37:50,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-30 00:37:50,552 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 00:37:50,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:50,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1873493846, now seen corresponding path program 1 times [2020-11-30 00:37:50,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:50,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370433284] [2020-11-30 00:37:50,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:50,561 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:37:50,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784668785] [2020-11-30 00:37:50,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/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 00:37:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:50,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:37:50,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:50,691 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 00:37:50,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370433284] [2020-11-30 00:37:50,692 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:37:50,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784668785] [2020-11-30 00:37:50,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:37:50,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-30 00:37:50,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963180959] [2020-11-30 00:37:50,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:37:50,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:50,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:37:50,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:37:50,693 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 6 states. [2020-11-30 00:37:50,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:50,766 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2020-11-30 00:37:50,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:37:50,767 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-11-30 00:37:50,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:37:50,768 INFO L225 Difference]: With dead ends: 62 [2020-11-30 00:37:50,768 INFO L226 Difference]: Without dead ends: 54 [2020-11-30 00:37:50,768 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 00:37:50,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-30 00:37:50,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-30 00:37:50,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-30 00:37:50,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2020-11-30 00:37:50,776 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 27 [2020-11-30 00:37:50,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:37:50,776 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2020-11-30 00:37:50,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:37:50,776 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-11-30 00:37:50,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-30 00:37:50,777 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:37:50,777 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2020-11-30 00:37:50,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:37:50,995 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 00:37:50,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:50,995 INFO L82 PathProgramCache]: Analyzing trace with hash 600720320, now seen corresponding path program 3 times [2020-11-30 00:37:50,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:50,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086596002] [2020-11-30 00:37:50,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:51,015 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:37:51,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [717631561] [2020-11-30 00:37:51,015 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/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 00:37:51,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-11-30 00:37:51,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:37:51,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 00:37:51,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:51,111 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:37:51,112 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:37:51,195 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 00:37:51,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086596002] [2020-11-30 00:37:51,196 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:37:51,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717631561] [2020-11-30 00:37:51,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:37:51,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-30 00:37:51,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098186363] [2020-11-30 00:37:51,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:37:51,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:51,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:37:51,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:37:51,197 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand 5 states. [2020-11-30 00:37:51,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:51,353 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2020-11-30 00:37:51,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:37:51,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-30 00:37:51,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:37:51,356 INFO L225 Difference]: With dead ends: 54 [2020-11-30 00:37:51,356 INFO L226 Difference]: Without dead ends: 50 [2020-11-30 00:37:51,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:37:51,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-30 00:37:51,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-11-30 00:37:51,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-30 00:37:51,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2020-11-30 00:37:51,362 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 30 [2020-11-30 00:37:51,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:37:51,363 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2020-11-30 00:37:51,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:37:51,363 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2020-11-30 00:37:51,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-30 00:37:51,363 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:37:51,364 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1] [2020-11-30 00:37:51,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:37:51,580 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 00:37:51,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:51,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1766796195, now seen corresponding path program 3 times [2020-11-30 00:37:51,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:51,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875808991] [2020-11-30 00:37:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:51,589 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:37:51,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1507607704] [2020-11-30 00:37:51,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/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 00:37:51,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-11-30 00:37:51,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:37:51,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 24 conjunts are in the unsatisfiable core [2020-11-30 00:37:51,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:51,707 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:37:51,707 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:37:51,991 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-30 00:37:51,994 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:37:51,994 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:37:52,154 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-11-30 00:38:03,013 WARN L193 SmtUtils]: Spent 3.68 s on a formula simplification that was a NOOP. DAG size: 26 [2020-11-30 00:38:03,016 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:38:03,016 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:38:13,295 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification that was a NOOP. DAG size: 18 [2020-11-30 00:38:13,324 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:38:13,661 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 00:38:13,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875808991] [2020-11-30 00:38:13,661 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:38:13,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507607704] [2020-11-30 00:38:13,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:38:13,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-30 00:38:13,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285356181] [2020-11-30 00:38:13,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 00:38:13,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:38:13,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 00:38:13,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=65, Unknown=4, NotChecked=0, Total=90 [2020-11-30 00:38:13,664 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand 10 states. [2020-11-30 00:38:27,977 WARN L193 SmtUtils]: Spent 13.69 s on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2020-11-30 00:38:39,322 WARN L193 SmtUtils]: Spent 11.27 s on a formula simplification. DAG size of input: 45 DAG size of output: 31 [2020-11-30 00:39:20,549 WARN L193 SmtUtils]: Spent 15.31 s on a formula simplification that was a NOOP. DAG size: 36 [2020-11-30 00:39:35,909 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-11-30 00:39:56,932 WARN L193 SmtUtils]: Spent 6.51 s on a formula simplification. DAG size of input: 35 DAG size of output: 22 [2020-11-30 00:40:09,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:40:09,699 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2020-11-30 00:40:09,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:40:09,700 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-11-30 00:40:09,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:40:09,701 INFO L225 Difference]: With dead ends: 56 [2020-11-30 00:40:09,701 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:40:09,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 95.1s TimeCoverageRelationStatistics Valid=66, Invalid=160, Unknown=14, NotChecked=0, Total=240 [2020-11-30 00:40:09,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:40:09,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:40:09,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:40:09,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:40:09,702 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-11-30 00:40:09,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:40:09,702 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:40:09,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 00:40:09,703 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:40:09,703 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:40:09,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-30 00:40:09,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:40:15,274 WARN L193 SmtUtils]: Spent 5.22 s on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2020-11-30 00:40:35,103 WARN L193 SmtUtils]: Spent 19.83 s on a formula simplification. DAG size of input: 36 DAG size of output: 30 [2020-11-30 00:40:44,141 WARN L193 SmtUtils]: Spent 9.04 s on a formula simplification. DAG size of input: 53 DAG size of output: 30 [2020-11-30 00:41:00,076 WARN L193 SmtUtils]: Spent 15.93 s on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2020-11-30 00:41:06,772 WARN L193 SmtUtils]: Spent 6.70 s on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2020-11-30 00:41:30,481 WARN L193 SmtUtils]: Spent 23.71 s on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-11-30 00:41:30,484 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 00:41:30,484 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 00:41:30,484 INFO L277 CegarLoopResult]: At program point L48(lines 21 49) the Hoare annotation is: true [2020-11-30 00:41:30,484 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:41:30,484 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 00:41:30,484 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:41:30,485 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:41:30,485 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 00:41:30,485 INFO L274 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2020-11-30 00:41:30,485 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 00:41:30,485 INFO L274 CegarLoopResult]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2020-11-30 00:41:30,485 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 00:41:30,485 INFO L274 CegarLoopResult]: For program point L12-4(lines 12 15) no Hoare annotation was computed. [2020-11-30 00:41:30,485 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 00:41:30,486 INFO L274 CegarLoopResult]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2020-11-30 00:41:30,486 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 00:41:30,486 INFO L274 CegarLoopResult]: For program point L12-8(lines 12 15) no Hoare annotation was computed. [2020-11-30 00:41:30,486 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 00:41:30,486 INFO L274 CegarLoopResult]: For program point L12-10(lines 12 15) no Hoare annotation was computed. [2020-11-30 00:41:30,486 INFO L277 CegarLoopResult]: At program point L12-11(lines 11 17) the Hoare annotation is: true [2020-11-30 00:41:30,486 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:41:30,486 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 00:41:30,486 INFO L274 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2020-11-30 00:41:30,486 INFO L274 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2020-11-30 00:41:30,486 INFO L274 CegarLoopResult]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2020-11-30 00:41:30,487 INFO L274 CegarLoopResult]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2020-11-30 00:41:30,487 INFO L274 CegarLoopResult]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2020-11-30 00:41:30,487 INFO L274 CegarLoopResult]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2020-11-30 00:41:30,487 INFO L274 CegarLoopResult]: For program point L30-1(lines 30 42) no Hoare annotation was computed. [2020-11-30 00:41:30,487 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 00:41:30,487 INFO L274 CegarLoopResult]: For program point L30-4(lines 30 42) no Hoare annotation was computed. [2020-11-30 00:41:30,487 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-30 00:41:30,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:41:30 BoogieIcfgContainer [2020-11-30 00:41:30,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:41:30,515 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:41:30,515 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:41:30,515 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:41:30,516 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:37:26" (3/4) ... [2020-11-30 00:41:30,520 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:41:30,531 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-30 00:41:30,531 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:41:30,532 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:41:30,532 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:41:30,592 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1d7d579d-2889-4d43-90ba-e23ee87ed613/bin/uautomizer/witness.graphml [2020-11-30 00:41:30,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:41:30,593 INFO L168 Benchmark]: Toolchain (without parser) took 244947.95 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 58.5 MB in the beginning and 65.2 MB in the end (delta: -6.8 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:30,594 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:41:30,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.53 ms. Allocated memory is still 90.2 MB. Free memory was 58.2 MB in the beginning and 68.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:30,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.07 ms. Allocated memory is still 90.2 MB. Free memory was 68.2 MB in the beginning and 66.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:30,595 INFO L168 Benchmark]: Boogie Preprocessor took 20.68 ms. Allocated memory is still 90.2 MB. Free memory was 66.5 MB in the beginning and 65.7 MB in the end (delta: 825.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:41:30,596 INFO L168 Benchmark]: RCFGBuilder took 378.63 ms. Allocated memory is still 90.2 MB. Free memory was 65.7 MB in the beginning and 51.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:30,597 INFO L168 Benchmark]: TraceAbstraction took 244131.61 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 51.0 MB in the beginning and 68.4 MB in the end (delta: -17.4 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:30,597 INFO L168 Benchmark]: Witness Printer took 77.23 ms. Allocated memory is still 109.1 MB. Free memory was 68.4 MB in the beginning and 65.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:30,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.53 ms. Allocated memory is still 90.2 MB. Free memory was 58.2 MB in the beginning and 68.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.07 ms. Allocated memory is still 90.2 MB. Free memory was 68.2 MB in the beginning and 66.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.68 ms. Allocated memory is still 90.2 MB. Free memory was 66.5 MB in the beginning and 65.7 MB in the end (delta: 825.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 378.63 ms. Allocated memory is still 90.2 MB. Free memory was 65.7 MB in the beginning and 51.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 244131.61 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 51.0 MB in the beginning and 68.4 MB in the end (delta: -17.4 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. * Witness Printer took 77.23 ms. Allocated memory is still 109.1 MB. Free memory was 68.4 MB in the beginning and 65.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 163.4s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 128.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 80.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 272 SDtfs, 268 SDslu, 535 SDs, 0 SdLazy, 599 SolverSat, 144 SolverUnsat, 21 SolverUnknown, 0 SolverNotchecked, 53.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 184 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 96.2s 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, 80.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 31.0s 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...