./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label40.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa --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 f8fd8a7f4bc5b8a783328ea3ccb02a1c89ebaa08f4ab2de173aa0152f6877b7b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:07:51,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:07:51,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:07:51,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:07:51,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:07:51,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:07:51,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:07:51,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:07:51,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:07:51,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:07:51,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:07:51,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:07:51,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:07:51,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:07:51,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:07:51,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:07:51,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:07:51,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:07:51,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:07:51,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:07:51,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:07:51,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:07:51,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:07:51,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:07:51,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:07:51,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:07:51,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:07:51,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:07:51,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:07:51,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:07:51,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:07:51,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:07:51,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:07:51,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:07:51,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:07:51,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:07:51,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:07:51,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:07:51,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:07:51,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:07:51,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:07:51,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 21:07:51,746 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:07:51,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:07:51,747 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:07:51,747 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:07:51,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 21:07:51,748 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 21:07:51,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:07:51,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:07:51,748 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:07:51,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:07:51,749 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 21:07:51,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 21:07:51,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 21:07:51,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:07:51,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 21:07:51,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 21:07:51,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 21:07:51,749 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 21:07:51,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 21:07:51,749 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:07:51,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 21:07:51,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:07:51,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:07:51,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 21:07:51,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:07:51,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:07:51,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 21:07:51,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 21:07:51,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 21:07:51,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 21:07:51,751 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 21:07:51,751 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 21:07:51,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 21:07:51,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:07:51,751 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_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8fd8a7f4bc5b8a783328ea3ccb02a1c89ebaa08f4ab2de173aa0152f6877b7b [2021-12-06 21:07:51,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:07:51,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:07:51,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:07:51,956 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:07:51,957 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:07:51,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/eca-rers2012/Problem11_label40.c [2021-12-06 21:07:51,999 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/data/6aa9fb7c7/31c177cac2744486af26892a3e2817b1/FLAG7a306768d [2021-12-06 21:07:52,478 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:07:52,478 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/sv-benchmarks/c/eca-rers2012/Problem11_label40.c [2021-12-06 21:07:52,491 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/data/6aa9fb7c7/31c177cac2744486af26892a3e2817b1/FLAG7a306768d [2021-12-06 21:07:52,985 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/data/6aa9fb7c7/31c177cac2744486af26892a3e2817b1 [2021-12-06 21:07:52,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:07:52,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:07:52,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:07:52,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:07:52,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:07:52,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:07:52" (1/1) ... [2021-12-06 21:07:52,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50afce43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:07:52, skipping insertion in model container [2021-12-06 21:07:52,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:07:52" (1/1) ... [2021-12-06 21:07:52,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:07:53,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:07:53,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/sv-benchmarks/c/eca-rers2012/Problem11_label40.c[6409,6422] [2021-12-06 21:07:53,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:07:53,373 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 21:07:53,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/sv-benchmarks/c/eca-rers2012/Problem11_label40.c[6409,6422] [2021-12-06 21:07:53,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:07:53,486 INFO L208 MainTranslator]: Completed translation [2021-12-06 21:07:53,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:07:53 WrapperNode [2021-12-06 21:07:53,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:07:53,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 21:07:53,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 21:07:53,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 21:07:53,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:07:53" (1/1) ... [2021-12-06 21:07:53,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:07:53" (1/1) ... [2021-12-06 21:07:53,605 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2021-12-06 21:07:53,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 21:07:53,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 21:07:53,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 21:07:53,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 21:07:53,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:07:53" (1/1) ... [2021-12-06 21:07:53,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:07:53" (1/1) ... [2021-12-06 21:07:53,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:07:53" (1/1) ... [2021-12-06 21:07:53,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:07:53" (1/1) ... [2021-12-06 21:07:53,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:07:53" (1/1) ... [2021-12-06 21:07:53,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:07:53" (1/1) ... [2021-12-06 21:07:53,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:07:53" (1/1) ... [2021-12-06 21:07:53,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 21:07:53,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 21:07:53,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 21:07:53,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 21:07:53,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:07:53" (1/1) ... [2021-12-06 21:07:53,728 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:07:53,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:07:53,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 21:07:53,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 21:07:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 21:07:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 21:07:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 21:07:53,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 21:07:53,823 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 21:07:53,824 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 21:07:54,770 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 21:07:54,781 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 21:07:54,781 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 21:07:54,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:07:54 BoogieIcfgContainer [2021-12-06 21:07:54,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 21:07:54,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 21:07:54,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 21:07:54,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 21:07:54,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 09:07:52" (1/3) ... [2021-12-06 21:07:54,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fa3166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:07:54, skipping insertion in model container [2021-12-06 21:07:54,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:07:53" (2/3) ... [2021-12-06 21:07:54,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fa3166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:07:54, skipping insertion in model container [2021-12-06 21:07:54,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:07:54" (3/3) ... [2021-12-06 21:07:54,792 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label40.c [2021-12-06 21:07:54,797 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 21:07:54,797 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 21:07:54,845 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 21:07:54,852 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 21:07:54,853 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 21:07:54,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:54,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 21:07:54,882 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:07:54,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:07:54,884 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:07:54,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:07:54,889 INFO L85 PathProgramCache]: Analyzing trace with hash 626000386, now seen corresponding path program 1 times [2021-12-06 21:07:54,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:07:54,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638104911] [2021-12-06 21:07:54,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:07:54,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:07:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:07:55,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:07:55,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:07:55,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638104911] [2021-12-06 21:07:55,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638104911] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:07:55,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:07:55,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 21:07:55,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330261907] [2021-12-06 21:07:55,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:07:55,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:07:55,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:07:55,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:07:55,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:07:55,148 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:55,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:07:55,957 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2021-12-06 21:07:55,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:07:55,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-12-06 21:07:55,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:07:55,970 INFO L225 Difference]: With dead ends: 761 [2021-12-06 21:07:55,970 INFO L226 Difference]: Without dead ends: 413 [2021-12-06 21:07:55,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:07:55,976 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 184 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 21:07:55,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 222 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 21:07:55,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-12-06 21:07:56,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-12-06 21:07:56,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.453883495145631) internal successors, (599), 412 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:56,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2021-12-06 21:07:56,026 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 44 [2021-12-06 21:07:56,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:07:56,026 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2021-12-06 21:07:56,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:56,027 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2021-12-06 21:07:56,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-06 21:07:56,030 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:07:56,030 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:07:56,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 21:07:56,031 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:07:56,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:07:56,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1200539258, now seen corresponding path program 1 times [2021-12-06 21:07:56,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:07:56,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366896409] [2021-12-06 21:07:56,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:07:56,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:07:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:07:56,150 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:07:56,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:07:56,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366896409] [2021-12-06 21:07:56,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366896409] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:07:56,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:07:56,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 21:07:56,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822763105] [2021-12-06 21:07:56,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:07:56,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:07:56,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:07:56,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:07:56,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:07:56,153 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:56,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:07:56,705 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2021-12-06 21:07:56,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:07:56,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-06 21:07:56,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:07:56,710 INFO L225 Difference]: With dead ends: 1211 [2021-12-06 21:07:56,710 INFO L226 Difference]: Without dead ends: 800 [2021-12-06 21:07:56,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:07:56,712 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 144 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 21:07:56,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 118 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 21:07:56,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-12-06 21:07:56,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2021-12-06 21:07:56,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3756345177664975) internal successors, (1084), 788 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1084 transitions. [2021-12-06 21:07:56,746 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1084 transitions. Word has length 112 [2021-12-06 21:07:56,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:07:56,746 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1084 transitions. [2021-12-06 21:07:56,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1084 transitions. [2021-12-06 21:07:56,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 21:07:56,748 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:07:56,748 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:07:56,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 21:07:56,749 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:07:56,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:07:56,749 INFO L85 PathProgramCache]: Analyzing trace with hash -590739588, now seen corresponding path program 1 times [2021-12-06 21:07:56,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:07:56,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795170054] [2021-12-06 21:07:56,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:07:56,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:07:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:07:56,865 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:07:56,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:07:56,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795170054] [2021-12-06 21:07:56,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795170054] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:07:56,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:07:56,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 21:07:56,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609715725] [2021-12-06 21:07:56,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:07:56,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:07:56,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:07:56,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:07:56,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:07:56,867 INFO L87 Difference]: Start difference. First operand 789 states and 1084 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:57,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:07:57,416 INFO L93 Difference]: Finished difference Result 1945 states and 2614 transitions. [2021-12-06 21:07:57,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:07:57,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 21:07:57,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:07:57,421 INFO L225 Difference]: With dead ends: 1945 [2021-12-06 21:07:57,421 INFO L226 Difference]: Without dead ends: 1158 [2021-12-06 21:07:57,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:07:57,423 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 21:07:57,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 190 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 21:07:57,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2021-12-06 21:07:57,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1157. [2021-12-06 21:07:57,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.2716262975778547) internal successors, (1470), 1156 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:57,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1470 transitions. [2021-12-06 21:07:57,444 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1470 transitions. Word has length 113 [2021-12-06 21:07:57,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:07:57,444 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1470 transitions. [2021-12-06 21:07:57,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:57,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1470 transitions. [2021-12-06 21:07:57,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-06 21:07:57,447 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:07:57,447 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:07:57,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 21:07:57,448 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:07:57,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:07:57,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1199532265, now seen corresponding path program 1 times [2021-12-06 21:07:57,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:07:57,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867268517] [2021-12-06 21:07:57,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:07:57,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:07:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:07:57,543 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:07:57,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:07:57,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867268517] [2021-12-06 21:07:57,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867268517] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:07:57,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:07:57,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:07:57,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288367075] [2021-12-06 21:07:57,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:07:57,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 21:07:57,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:07:57,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 21:07:57,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 21:07:57,545 INFO L87 Difference]: Start difference. First operand 1157 states and 1470 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:58,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:07:58,548 INFO L93 Difference]: Finished difference Result 3445 states and 4568 transitions. [2021-12-06 21:07:58,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 21:07:58,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2021-12-06 21:07:58,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:07:58,559 INFO L225 Difference]: With dead ends: 3445 [2021-12-06 21:07:58,559 INFO L226 Difference]: Without dead ends: 2474 [2021-12-06 21:07:58,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 21:07:58,563 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 320 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 21:07:58,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 95 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 21:07:58,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2021-12-06 21:07:58,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2473. [2021-12-06 21:07:58,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2472 states have (on average 1.287621359223301) internal successors, (3183), 2472 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:58,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 3183 transitions. [2021-12-06 21:07:58,610 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 3183 transitions. Word has length 171 [2021-12-06 21:07:58,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:07:58,611 INFO L470 AbstractCegarLoop]: Abstraction has 2473 states and 3183 transitions. [2021-12-06 21:07:58,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:58,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 3183 transitions. [2021-12-06 21:07:58,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-12-06 21:07:58,615 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:07:58,615 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:07:58,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 21:07:58,615 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:07:58,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:07:58,616 INFO L85 PathProgramCache]: Analyzing trace with hash -362773066, now seen corresponding path program 1 times [2021-12-06 21:07:58,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:07:58,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102685694] [2021-12-06 21:07:58,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:07:58,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:07:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:07:58,724 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:07:58,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:07:58,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102685694] [2021-12-06 21:07:58,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102685694] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:07:58,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:07:58,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:07:58,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969392587] [2021-12-06 21:07:58,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:07:58,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:07:58,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:07:58,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:07:58,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:07:58,726 INFO L87 Difference]: Start difference. First operand 2473 states and 3183 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:59,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:07:59,282 INFO L93 Difference]: Finished difference Result 5695 states and 7520 transitions. [2021-12-06 21:07:59,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:07:59,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 224 [2021-12-06 21:07:59,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:07:59,297 INFO L225 Difference]: With dead ends: 5695 [2021-12-06 21:07:59,297 INFO L226 Difference]: Without dead ends: 3592 [2021-12-06 21:07:59,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:07:59,300 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 136 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 21:07:59,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 347 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 21:07:59,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3592 states. [2021-12-06 21:07:59,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3592 to 3579. [2021-12-06 21:07:59,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3579 states, 3578 states have (on average 1.252375628842929) internal successors, (4481), 3578 states have internal predecessors, (4481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:59,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3579 states to 3579 states and 4481 transitions. [2021-12-06 21:07:59,355 INFO L78 Accepts]: Start accepts. Automaton has 3579 states and 4481 transitions. Word has length 224 [2021-12-06 21:07:59,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:07:59,356 INFO L470 AbstractCegarLoop]: Abstraction has 3579 states and 4481 transitions. [2021-12-06 21:07:59,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:59,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3579 states and 4481 transitions. [2021-12-06 21:07:59,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-12-06 21:07:59,358 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:07:59,359 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:07:59,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 21:07:59,359 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:07:59,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:07:59,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1808781376, now seen corresponding path program 1 times [2021-12-06 21:07:59,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:07:59,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541979701] [2021-12-06 21:07:59,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:07:59,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:07:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:07:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-06 21:07:59,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:07:59,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541979701] [2021-12-06 21:07:59,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541979701] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:07:59,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:07:59,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:07:59,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278143322] [2021-12-06 21:07:59,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:07:59,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:07:59,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:07:59,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:07:59,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:07:59,450 INFO L87 Difference]: Start difference. First operand 3579 states and 4481 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:07:59,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:07:59,928 INFO L93 Difference]: Finished difference Result 7726 states and 9781 transitions. [2021-12-06 21:07:59,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:07:59,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2021-12-06 21:07:59,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:07:59,946 INFO L225 Difference]: With dead ends: 7726 [2021-12-06 21:07:59,947 INFO L226 Difference]: Without dead ends: 4517 [2021-12-06 21:07:59,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:07:59,951 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 158 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 21:07:59,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 346 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 21:07:59,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4517 states. [2021-12-06 21:08:00,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4517 to 4499. [2021-12-06 21:08:00,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4499 states, 4498 states have (on average 1.240773677189862) internal successors, (5581), 4498 states have internal predecessors, (5581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:00,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4499 states to 4499 states and 5581 transitions. [2021-12-06 21:08:00,058 INFO L78 Accepts]: Start accepts. Automaton has 4499 states and 5581 transitions. Word has length 225 [2021-12-06 21:08:00,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:00,059 INFO L470 AbstractCegarLoop]: Abstraction has 4499 states and 5581 transitions. [2021-12-06 21:08:00,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:00,059 INFO L276 IsEmpty]: Start isEmpty. Operand 4499 states and 5581 transitions. [2021-12-06 21:08:00,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-12-06 21:08:00,063 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:00,064 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:00,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 21:08:00,064 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:00,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:00,064 INFO L85 PathProgramCache]: Analyzing trace with hash -218901039, now seen corresponding path program 1 times [2021-12-06 21:08:00,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:00,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308121448] [2021-12-06 21:08:00,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:00,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:00,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:00,163 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 21:08:00,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:00,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308121448] [2021-12-06 21:08:00,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308121448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:00,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:08:00,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:08:00,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197346755] [2021-12-06 21:08:00,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:00,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:08:00,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:00,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:08:00,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:00,165 INFO L87 Difference]: Start difference. First operand 4499 states and 5581 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:00,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:00,766 INFO L93 Difference]: Finished difference Result 9741 states and 12305 transitions. [2021-12-06 21:08:00,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:08:00,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 226 [2021-12-06 21:08:00,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:00,793 INFO L225 Difference]: With dead ends: 9741 [2021-12-06 21:08:00,793 INFO L226 Difference]: Without dead ends: 5612 [2021-12-06 21:08:00,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:00,798 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 153 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:00,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 371 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 21:08:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5612 states. [2021-12-06 21:08:00,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5612 to 5419. [2021-12-06 21:08:00,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 5418 states have (on average 1.2331118493909192) internal successors, (6681), 5418 states have internal predecessors, (6681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:00,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 6681 transitions. [2021-12-06 21:08:00,898 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 6681 transitions. Word has length 226 [2021-12-06 21:08:00,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:00,899 INFO L470 AbstractCegarLoop]: Abstraction has 5419 states and 6681 transitions. [2021-12-06 21:08:00,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:00,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 6681 transitions. [2021-12-06 21:08:00,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-12-06 21:08:00,904 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:00,905 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:00,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 21:08:00,905 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:00,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:00,906 INFO L85 PathProgramCache]: Analyzing trace with hash -25691425, now seen corresponding path program 1 times [2021-12-06 21:08:00,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:00,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667648926] [2021-12-06 21:08:00,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:00,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:01,063 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-06 21:08:01,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:01,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667648926] [2021-12-06 21:08:01,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667648926] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 21:08:01,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649886314] [2021-12-06 21:08:01,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:01,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:08:01,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:08:01,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:08:01,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 21:08:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:01,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 21:08:01,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:08:02,229 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-06 21:08:02,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 21:08:02,773 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-06 21:08:02,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649886314] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 21:08:02,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-06 21:08:02,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 6 [2021-12-06 21:08:02,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471704825] [2021-12-06 21:08:02,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:02,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 21:08:02,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:02,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 21:08:02,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-06 21:08:02,775 INFO L87 Difference]: Start difference. First operand 5419 states and 6681 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:03,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:03,860 INFO L93 Difference]: Finished difference Result 13052 states and 16454 transitions. [2021-12-06 21:08:03,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 21:08:03,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2021-12-06 21:08:03,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:03,891 INFO L225 Difference]: With dead ends: 13052 [2021-12-06 21:08:03,891 INFO L226 Difference]: Without dead ends: 8929 [2021-12-06 21:08:03,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 487 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-06 21:08:03,895 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 299 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:03,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 69 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 21:08:03,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8929 states. [2021-12-06 21:08:03,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8929 to 8193. [2021-12-06 21:08:03,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8193 states, 8192 states have (on average 1.245849609375) internal successors, (10206), 8192 states have internal predecessors, (10206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:03,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8193 states to 8193 states and 10206 transitions. [2021-12-06 21:08:03,994 INFO L78 Accepts]: Start accepts. Automaton has 8193 states and 10206 transitions. Word has length 246 [2021-12-06 21:08:03,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:03,994 INFO L470 AbstractCegarLoop]: Abstraction has 8193 states and 10206 transitions. [2021-12-06 21:08:03,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:03,995 INFO L276 IsEmpty]: Start isEmpty. Operand 8193 states and 10206 transitions. [2021-12-06 21:08:03,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-12-06 21:08:03,998 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:03,998 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:04,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 21:08:04,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:08:04,200 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:04,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:04,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1131175066, now seen corresponding path program 1 times [2021-12-06 21:08:04,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:04,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929514192] [2021-12-06 21:08:04,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:04,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-06 21:08:04,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:04,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929514192] [2021-12-06 21:08:04,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929514192] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:04,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:08:04,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:08:04,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304641609] [2021-12-06 21:08:04,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:04,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:08:04,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:04,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:08:04,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:04,324 INFO L87 Difference]: Start difference. First operand 8193 states and 10206 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:04,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:04,920 INFO L93 Difference]: Finished difference Result 16207 states and 20235 transitions. [2021-12-06 21:08:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:08:04,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2021-12-06 21:08:04,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:04,931 INFO L225 Difference]: With dead ends: 16207 [2021-12-06 21:08:04,932 INFO L226 Difference]: Without dead ends: 8200 [2021-12-06 21:08:04,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:04,936 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 157 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:04,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 379 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 21:08:04,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8200 states. [2021-12-06 21:08:04,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8200 to 8192. [2021-12-06 21:08:05,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8192 states, 8191 states have (on average 1.2020510316200708) internal successors, (9846), 8191 states have internal predecessors, (9846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:05,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8192 states to 8192 states and 9846 transitions. [2021-12-06 21:08:05,014 INFO L78 Accepts]: Start accepts. Automaton has 8192 states and 9846 transitions. Word has length 253 [2021-12-06 21:08:05,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:05,014 INFO L470 AbstractCegarLoop]: Abstraction has 8192 states and 9846 transitions. [2021-12-06 21:08:05,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:05,014 INFO L276 IsEmpty]: Start isEmpty. Operand 8192 states and 9846 transitions. [2021-12-06 21:08:05,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-12-06 21:08:05,020 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:05,020 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:05,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 21:08:05,020 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:05,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:05,020 INFO L85 PathProgramCache]: Analyzing trace with hash 126662482, now seen corresponding path program 1 times [2021-12-06 21:08:05,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:05,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99892108] [2021-12-06 21:08:05,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:05,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:05,146 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 21:08:05,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:05,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99892108] [2021-12-06 21:08:05,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99892108] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:05,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:08:05,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:08:05,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801876308] [2021-12-06 21:08:05,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:05,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:08:05,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:05,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:08:05,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:05,149 INFO L87 Difference]: Start difference. First operand 8192 states and 9846 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:05,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:05,641 INFO L93 Difference]: Finished difference Result 18400 states and 22298 transitions. [2021-12-06 21:08:05,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:08:05,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2021-12-06 21:08:05,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:05,664 INFO L225 Difference]: With dead ends: 18400 [2021-12-06 21:08:05,664 INFO L226 Difference]: Without dead ends: 10392 [2021-12-06 21:08:05,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:05,669 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 174 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:05,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 152 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 21:08:05,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10392 states. [2021-12-06 21:08:05,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10392 to 9283. [2021-12-06 21:08:05,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9283 states, 9282 states have (on average 1.152014652014652) internal successors, (10693), 9282 states have internal predecessors, (10693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:05,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9283 states to 9283 states and 10693 transitions. [2021-12-06 21:08:05,757 INFO L78 Accepts]: Start accepts. Automaton has 9283 states and 10693 transitions. Word has length 293 [2021-12-06 21:08:05,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:05,757 INFO L470 AbstractCegarLoop]: Abstraction has 9283 states and 10693 transitions. [2021-12-06 21:08:05,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:05,758 INFO L276 IsEmpty]: Start isEmpty. Operand 9283 states and 10693 transitions. [2021-12-06 21:08:05,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-12-06 21:08:05,762 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:05,762 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:05,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 21:08:05,762 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:05,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:05,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1759383677, now seen corresponding path program 1 times [2021-12-06 21:08:05,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:05,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526424787] [2021-12-06 21:08:05,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:05,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:05,873 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-06 21:08:05,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:05,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526424787] [2021-12-06 21:08:05,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526424787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:05,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:08:05,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:08:05,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863462643] [2021-12-06 21:08:05,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:05,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:08:05,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:05,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:08:05,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:05,875 INFO L87 Difference]: Start difference. First operand 9283 states and 10693 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:06,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:06,331 INFO L93 Difference]: Finished difference Result 17270 states and 19957 transitions. [2021-12-06 21:08:06,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:08:06,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 323 [2021-12-06 21:08:06,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:06,352 INFO L225 Difference]: With dead ends: 17270 [2021-12-06 21:08:06,353 INFO L226 Difference]: Without dead ends: 9281 [2021-12-06 21:08:06,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:06,358 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 148 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:06,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 299 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 21:08:06,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9281 states. [2021-12-06 21:08:06,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9281 to 8729. [2021-12-06 21:08:06,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8729 states, 8728 states have (on average 1.135884509624198) internal successors, (9914), 8728 states have internal predecessors, (9914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:06,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8729 states to 8729 states and 9914 transitions. [2021-12-06 21:08:06,442 INFO L78 Accepts]: Start accepts. Automaton has 8729 states and 9914 transitions. Word has length 323 [2021-12-06 21:08:06,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:06,443 INFO L470 AbstractCegarLoop]: Abstraction has 8729 states and 9914 transitions. [2021-12-06 21:08:06,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:06,443 INFO L276 IsEmpty]: Start isEmpty. Operand 8729 states and 9914 transitions. [2021-12-06 21:08:06,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2021-12-06 21:08:06,447 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:06,447 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:06,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 21:08:06,448 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:06,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:06,448 INFO L85 PathProgramCache]: Analyzing trace with hash -126252397, now seen corresponding path program 1 times [2021-12-06 21:08:06,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:06,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976122179] [2021-12-06 21:08:06,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:06,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:06,557 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-06 21:08:06,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:06,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976122179] [2021-12-06 21:08:06,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976122179] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:06,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:08:06,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:08:06,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409786535] [2021-12-06 21:08:06,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:06,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:08:06,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:06,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:08:06,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:06,560 INFO L87 Difference]: Start difference. First operand 8729 states and 9914 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:07,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:07,096 INFO L93 Difference]: Finished difference Result 21136 states and 24080 transitions. [2021-12-06 21:08:07,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:08:07,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 342 [2021-12-06 21:08:07,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:07,109 INFO L225 Difference]: With dead ends: 21136 [2021-12-06 21:08:07,109 INFO L226 Difference]: Without dead ends: 12777 [2021-12-06 21:08:07,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:07,115 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 175 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:07,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 297 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 21:08:07,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12777 states. [2021-12-06 21:08:07,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12777 to 11120. [2021-12-06 21:08:07,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11120 states, 11119 states have (on average 1.123572263692778) internal successors, (12493), 11119 states have internal predecessors, (12493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:07,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11120 states to 11120 states and 12493 transitions. [2021-12-06 21:08:07,214 INFO L78 Accepts]: Start accepts. Automaton has 11120 states and 12493 transitions. Word has length 342 [2021-12-06 21:08:07,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:07,215 INFO L470 AbstractCegarLoop]: Abstraction has 11120 states and 12493 transitions. [2021-12-06 21:08:07,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:07,215 INFO L276 IsEmpty]: Start isEmpty. Operand 11120 states and 12493 transitions. [2021-12-06 21:08:07,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-12-06 21:08:07,224 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:07,224 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:07,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 21:08:07,224 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:07,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:07,225 INFO L85 PathProgramCache]: Analyzing trace with hash -575963578, now seen corresponding path program 1 times [2021-12-06 21:08:07,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:07,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344104382] [2021-12-06 21:08:07,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:07,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:07,341 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-12-06 21:08:07,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:07,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344104382] [2021-12-06 21:08:07,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344104382] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:07,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:08:07,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:08:07,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7587418] [2021-12-06 21:08:07,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:07,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:08:07,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:07,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:08:07,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:07,343 INFO L87 Difference]: Start difference. First operand 11120 states and 12493 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:07,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:07,820 INFO L93 Difference]: Finished difference Result 22601 states and 25416 transitions. [2021-12-06 21:08:07,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:08:07,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 439 [2021-12-06 21:08:07,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:07,830 INFO L225 Difference]: With dead ends: 22601 [2021-12-06 21:08:07,830 INFO L226 Difference]: Without dead ends: 12959 [2021-12-06 21:08:07,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:07,838 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 177 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:07,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 139 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 21:08:07,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12959 states. [2021-12-06 21:08:07,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12959 to 8347. [2021-12-06 21:08:07,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8347 states, 8346 states have (on average 1.1284447639587827) internal successors, (9418), 8346 states have internal predecessors, (9418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:07,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8347 states to 8347 states and 9418 transitions. [2021-12-06 21:08:07,936 INFO L78 Accepts]: Start accepts. Automaton has 8347 states and 9418 transitions. Word has length 439 [2021-12-06 21:08:07,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:07,936 INFO L470 AbstractCegarLoop]: Abstraction has 8347 states and 9418 transitions. [2021-12-06 21:08:07,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:07,937 INFO L276 IsEmpty]: Start isEmpty. Operand 8347 states and 9418 transitions. [2021-12-06 21:08:07,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2021-12-06 21:08:07,946 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:07,946 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:07,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 21:08:07,946 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:07,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:07,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1542853619, now seen corresponding path program 1 times [2021-12-06 21:08:07,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:07,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273033981] [2021-12-06 21:08:07,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:07,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:08,108 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-06 21:08:08,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:08,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273033981] [2021-12-06 21:08:08,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273033981] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:08,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:08:08,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:08:08,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940667055] [2021-12-06 21:08:08,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:08,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 21:08:08,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:08,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 21:08:08,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 21:08:08,111 INFO L87 Difference]: Start difference. First operand 8347 states and 9418 transitions. Second operand has 4 states, 4 states have (on average 102.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:08,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:08,872 INFO L93 Difference]: Finished difference Result 18534 states and 20893 transitions. [2021-12-06 21:08:08,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 21:08:08,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 102.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 449 [2021-12-06 21:08:08,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:08,879 INFO L225 Difference]: With dead ends: 18534 [2021-12-06 21:08:08,879 INFO L226 Difference]: Without dead ends: 10557 [2021-12-06 21:08:08,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 21:08:08,885 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 99 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:08,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 130 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 21:08:08,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2021-12-06 21:08:08,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 10187. [2021-12-06 21:08:08,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10187 states, 10186 states have (on average 1.1175142352248184) internal successors, (11383), 10186 states have internal predecessors, (11383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:09,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10187 states to 10187 states and 11383 transitions. [2021-12-06 21:08:09,001 INFO L78 Accepts]: Start accepts. Automaton has 10187 states and 11383 transitions. Word has length 449 [2021-12-06 21:08:09,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:09,001 INFO L470 AbstractCegarLoop]: Abstraction has 10187 states and 11383 transitions. [2021-12-06 21:08:09,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:09,001 INFO L276 IsEmpty]: Start isEmpty. Operand 10187 states and 11383 transitions. [2021-12-06 21:08:09,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-12-06 21:08:09,010 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:09,010 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:09,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 21:08:09,011 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:09,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:09,011 INFO L85 PathProgramCache]: Analyzing trace with hash 132646832, now seen corresponding path program 1 times [2021-12-06 21:08:09,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:09,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540631731] [2021-12-06 21:08:09,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:09,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:09,147 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 607 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-12-06 21:08:09,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:09,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540631731] [2021-12-06 21:08:09,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540631731] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:09,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:08:09,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:08:09,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304623581] [2021-12-06 21:08:09,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:09,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:08:09,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:09,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:08:09,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:09,149 INFO L87 Difference]: Start difference. First operand 10187 states and 11383 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:09,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:09,759 INFO L93 Difference]: Finished difference Result 20930 states and 23469 transitions. [2021-12-06 21:08:09,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:08:09,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 475 [2021-12-06 21:08:09,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:09,768 INFO L225 Difference]: With dead ends: 20930 [2021-12-06 21:08:09,768 INFO L226 Difference]: Without dead ends: 11297 [2021-12-06 21:08:09,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:09,773 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 84 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:09,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 353 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 21:08:09,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11297 states. [2021-12-06 21:08:09,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11297 to 10744. [2021-12-06 21:08:09,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10744 states, 10743 states have (on average 1.1144931583356605) internal successors, (11973), 10743 states have internal predecessors, (11973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10744 states to 10744 states and 11973 transitions. [2021-12-06 21:08:09,872 INFO L78 Accepts]: Start accepts. Automaton has 10744 states and 11973 transitions. Word has length 475 [2021-12-06 21:08:09,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:09,872 INFO L470 AbstractCegarLoop]: Abstraction has 10744 states and 11973 transitions. [2021-12-06 21:08:09,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:09,873 INFO L276 IsEmpty]: Start isEmpty. Operand 10744 states and 11973 transitions. [2021-12-06 21:08:09,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2021-12-06 21:08:09,882 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:09,882 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:09,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 21:08:09,882 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:09,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:09,883 INFO L85 PathProgramCache]: Analyzing trace with hash -2079186287, now seen corresponding path program 1 times [2021-12-06 21:08:09,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:09,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033639346] [2021-12-06 21:08:09,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:09,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:10,050 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 304 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-12-06 21:08:10,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:10,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033639346] [2021-12-06 21:08:10,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033639346] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 21:08:10,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906307259] [2021-12-06 21:08:10,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:10,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:08:10,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:08:10,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:08:10,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 21:08:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:10,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 21:08:10,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:08:10,672 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-12-06 21:08:10,672 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 21:08:10,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906307259] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:10,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 21:08:10,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-06 21:08:10,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659953649] [2021-12-06 21:08:10,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:10,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:08:10,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:10,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:08:10,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 21:08:10,675 INFO L87 Difference]: Start difference. First operand 10744 states and 11973 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:11,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:11,182 INFO L93 Difference]: Finished difference Result 22430 states and 25088 transitions. [2021-12-06 21:08:11,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:08:11,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 487 [2021-12-06 21:08:11,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:11,190 INFO L225 Difference]: With dead ends: 22430 [2021-12-06 21:08:11,191 INFO L226 Difference]: Without dead ends: 12240 [2021-12-06 21:08:11,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 486 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 21:08:11,195 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 113 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:11,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 318 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 21:08:11,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12240 states. [2021-12-06 21:08:11,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12240 to 11860. [2021-12-06 21:08:11,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11860 states, 11859 states have (on average 1.1160300193945527) internal successors, (13235), 11859 states have internal predecessors, (13235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:11,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11860 states to 11860 states and 13235 transitions. [2021-12-06 21:08:11,290 INFO L78 Accepts]: Start accepts. Automaton has 11860 states and 13235 transitions. Word has length 487 [2021-12-06 21:08:11,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:11,290 INFO L470 AbstractCegarLoop]: Abstraction has 11860 states and 13235 transitions. [2021-12-06 21:08:11,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:11,290 INFO L276 IsEmpty]: Start isEmpty. Operand 11860 states and 13235 transitions. [2021-12-06 21:08:11,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2021-12-06 21:08:11,300 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:11,300 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:11,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 21:08:11,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-06 21:08:11,502 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:11,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:11,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1008492538, now seen corresponding path program 1 times [2021-12-06 21:08:11,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:11,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729831150] [2021-12-06 21:08:11,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:11,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:11,659 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2021-12-06 21:08:11,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:11,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729831150] [2021-12-06 21:08:11,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729831150] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:11,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:08:11,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:08:11,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360075778] [2021-12-06 21:08:11,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:11,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:08:11,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:11,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:08:11,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:11,660 INFO L87 Difference]: Start difference. First operand 11860 states and 13235 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:12,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:12,137 INFO L93 Difference]: Finished difference Result 25558 states and 28511 transitions. [2021-12-06 21:08:12,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:08:12,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 489 [2021-12-06 21:08:12,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:12,146 INFO L225 Difference]: With dead ends: 25558 [2021-12-06 21:08:12,147 INFO L226 Difference]: Without dead ends: 14068 [2021-12-06 21:08:12,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:12,152 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 106 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:12,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 362 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 21:08:12,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14068 states. [2021-12-06 21:08:12,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14068 to 13512. [2021-12-06 21:08:12,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13512 states, 13511 states have (on average 1.101398860187995) internal successors, (14881), 13511 states have internal predecessors, (14881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:12,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13512 states to 13512 states and 14881 transitions. [2021-12-06 21:08:12,268 INFO L78 Accepts]: Start accepts. Automaton has 13512 states and 14881 transitions. Word has length 489 [2021-12-06 21:08:12,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:12,268 INFO L470 AbstractCegarLoop]: Abstraction has 13512 states and 14881 transitions. [2021-12-06 21:08:12,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:12,268 INFO L276 IsEmpty]: Start isEmpty. Operand 13512 states and 14881 transitions. [2021-12-06 21:08:12,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2021-12-06 21:08:12,282 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:12,282 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:12,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 21:08:12,282 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:12,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:12,283 INFO L85 PathProgramCache]: Analyzing trace with hash -2127881712, now seen corresponding path program 1 times [2021-12-06 21:08:12,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:12,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949416575] [2021-12-06 21:08:12,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:12,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:12,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 950 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-12-06 21:08:12,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:12,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949416575] [2021-12-06 21:08:12,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949416575] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:12,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:08:12,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 21:08:12,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705338448] [2021-12-06 21:08:12,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:12,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 21:08:12,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:12,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 21:08:12,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 21:08:12,452 INFO L87 Difference]: Start difference. First operand 13512 states and 14881 transitions. Second operand has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:13,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:13,343 INFO L93 Difference]: Finished difference Result 32019 states and 35410 transitions. [2021-12-06 21:08:13,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 21:08:13,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 562 [2021-12-06 21:08:13,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:13,358 INFO L225 Difference]: With dead ends: 32019 [2021-12-06 21:08:13,358 INFO L226 Difference]: Without dead ends: 19061 [2021-12-06 21:08:13,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 21:08:13,366 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 176 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:13,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 177 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 21:08:13,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19061 states. [2021-12-06 21:08:13,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19061 to 17019. [2021-12-06 21:08:13,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17019 states, 17018 states have (on average 1.0964860735691622) internal successors, (18660), 17018 states have internal predecessors, (18660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:13,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17019 states to 17019 states and 18660 transitions. [2021-12-06 21:08:13,521 INFO L78 Accepts]: Start accepts. Automaton has 17019 states and 18660 transitions. Word has length 562 [2021-12-06 21:08:13,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:13,522 INFO L470 AbstractCegarLoop]: Abstraction has 17019 states and 18660 transitions. [2021-12-06 21:08:13,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:13,522 INFO L276 IsEmpty]: Start isEmpty. Operand 17019 states and 18660 transitions. [2021-12-06 21:08:13,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2021-12-06 21:08:13,533 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:13,534 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:13,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 21:08:13,534 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:13,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:13,534 INFO L85 PathProgramCache]: Analyzing trace with hash 399883863, now seen corresponding path program 1 times [2021-12-06 21:08:13,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:13,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841273028] [2021-12-06 21:08:13,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:13,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:13,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 759 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2021-12-06 21:08:13,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:13,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841273028] [2021-12-06 21:08:13,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841273028] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:13,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:08:13,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:08:13,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674597337] [2021-12-06 21:08:13,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:13,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 21:08:13,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:13,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 21:08:13,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 21:08:13,670 INFO L87 Difference]: Start difference. First operand 17019 states and 18660 transitions. Second operand has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:14,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:14,512 INFO L93 Difference]: Finished difference Result 35886 states and 39369 transitions. [2021-12-06 21:08:14,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 21:08:14,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 572 [2021-12-06 21:08:14,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:14,526 INFO L225 Difference]: With dead ends: 35886 [2021-12-06 21:08:14,526 INFO L226 Difference]: Without dead ends: 19237 [2021-12-06 21:08:14,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 21:08:14,534 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 181 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:14,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 109 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 21:08:14,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19237 states. [2021-12-06 21:08:14,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19237 to 18859. [2021-12-06 21:08:14,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18859 states, 18858 states have (on average 1.092586700604518) internal successors, (20604), 18858 states have internal predecessors, (20604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:14,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18859 states to 18859 states and 20604 transitions. [2021-12-06 21:08:14,704 INFO L78 Accepts]: Start accepts. Automaton has 18859 states and 20604 transitions. Word has length 572 [2021-12-06 21:08:14,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:14,704 INFO L470 AbstractCegarLoop]: Abstraction has 18859 states and 20604 transitions. [2021-12-06 21:08:14,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.5) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:14,705 INFO L276 IsEmpty]: Start isEmpty. Operand 18859 states and 20604 transitions. [2021-12-06 21:08:14,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2021-12-06 21:08:14,717 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:14,717 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:14,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 21:08:14,718 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:14,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:14,718 INFO L85 PathProgramCache]: Analyzing trace with hash 2124046520, now seen corresponding path program 1 times [2021-12-06 21:08:14,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:14,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009254516] [2021-12-06 21:08:14,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:14,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:14,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 917 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2021-12-06 21:08:14,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:14,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009254516] [2021-12-06 21:08:14,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009254516] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:14,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:08:14,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:08:14,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888006203] [2021-12-06 21:08:14,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:14,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:08:14,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:14,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:08:14,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:14,854 INFO L87 Difference]: Start difference. First operand 18859 states and 20604 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:15,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:15,381 INFO L93 Difference]: Finished difference Result 38819 states and 42488 transitions. [2021-12-06 21:08:15,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:08:15,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 660 [2021-12-06 21:08:15,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:15,396 INFO L225 Difference]: With dead ends: 38819 [2021-12-06 21:08:15,397 INFO L226 Difference]: Without dead ends: 19960 [2021-12-06 21:08:15,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:15,405 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 193 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:15,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 351 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 21:08:15,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19960 states. [2021-12-06 21:08:15,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19960 to 19406. [2021-12-06 21:08:15,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19406 states, 19405 states have (on average 1.0824014429270807) internal successors, (21004), 19405 states have internal predecessors, (21004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:15,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19406 states to 19406 states and 21004 transitions. [2021-12-06 21:08:15,582 INFO L78 Accepts]: Start accepts. Automaton has 19406 states and 21004 transitions. Word has length 660 [2021-12-06 21:08:15,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:15,582 INFO L470 AbstractCegarLoop]: Abstraction has 19406 states and 21004 transitions. [2021-12-06 21:08:15,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:15,583 INFO L276 IsEmpty]: Start isEmpty. Operand 19406 states and 21004 transitions. [2021-12-06 21:08:15,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2021-12-06 21:08:15,595 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:15,596 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:15,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 21:08:15,596 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:15,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:15,596 INFO L85 PathProgramCache]: Analyzing trace with hash 456496721, now seen corresponding path program 1 times [2021-12-06 21:08:15,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:15,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613663268] [2021-12-06 21:08:15,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:15,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:15,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 1651 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-12-06 21:08:15,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:15,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613663268] [2021-12-06 21:08:15,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613663268] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:15,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:08:15,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 21:08:15,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616843179] [2021-12-06 21:08:15,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:15,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 21:08:15,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:15,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 21:08:15,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 21:08:15,808 INFO L87 Difference]: Start difference. First operand 19406 states and 21004 transitions. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:16,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:16,574 INFO L93 Difference]: Finished difference Result 40667 states and 43981 transitions. [2021-12-06 21:08:16,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 21:08:16,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 725 [2021-12-06 21:08:16,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:16,590 INFO L225 Difference]: With dead ends: 40667 [2021-12-06 21:08:16,590 INFO L226 Difference]: Without dead ends: 21631 [2021-12-06 21:08:16,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 21:08:16,597 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 177 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:16,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 166 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 21:08:16,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21631 states. [2021-12-06 21:08:16,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21631 to 19406. [2021-12-06 21:08:16,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19406 states, 19405 states have (on average 1.0824014429270807) internal successors, (21004), 19405 states have internal predecessors, (21004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:16,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19406 states to 19406 states and 21004 transitions. [2021-12-06 21:08:16,773 INFO L78 Accepts]: Start accepts. Automaton has 19406 states and 21004 transitions. Word has length 725 [2021-12-06 21:08:16,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:16,774 INFO L470 AbstractCegarLoop]: Abstraction has 19406 states and 21004 transitions. [2021-12-06 21:08:16,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:16,774 INFO L276 IsEmpty]: Start isEmpty. Operand 19406 states and 21004 transitions. [2021-12-06 21:08:16,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2021-12-06 21:08:16,787 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:16,788 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:16,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 21:08:16,788 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:16,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:16,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1541384588, now seen corresponding path program 1 times [2021-12-06 21:08:16,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:16,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635922580] [2021-12-06 21:08:16,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:16,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:17,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 999 proven. 8 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2021-12-06 21:08:17,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:17,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635922580] [2021-12-06 21:08:17,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635922580] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 21:08:17,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900599268] [2021-12-06 21:08:17,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:17,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:08:17,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:08:17,103 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:08:17,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 21:08:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:17,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 21:08:17,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:08:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 683 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2021-12-06 21:08:17,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 21:08:17,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900599268] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:17,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 21:08:17,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-12-06 21:08:17,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804707382] [2021-12-06 21:08:17,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:17,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:08:17,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:17,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:08:17,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 21:08:17,897 INFO L87 Difference]: Start difference. First operand 19406 states and 21004 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:18,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:18,385 INFO L93 Difference]: Finished difference Result 40659 states and 44021 transitions. [2021-12-06 21:08:18,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:08:18,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 733 [2021-12-06 21:08:18,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:18,403 INFO L225 Difference]: With dead ends: 40659 [2021-12-06 21:08:18,403 INFO L226 Difference]: Without dead ends: 21623 [2021-12-06 21:08:18,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 739 GetRequests, 733 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 21:08:18,412 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 99 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:18,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 341 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 21:08:18,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21623 states. [2021-12-06 21:08:18,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21623 to 20510. [2021-12-06 21:08:18,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20510 states, 20509 states have (on average 1.082207811204837) internal successors, (22195), 20509 states have internal predecessors, (22195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:18,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20510 states to 20510 states and 22195 transitions. [2021-12-06 21:08:18,616 INFO L78 Accepts]: Start accepts. Automaton has 20510 states and 22195 transitions. Word has length 733 [2021-12-06 21:08:18,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:18,617 INFO L470 AbstractCegarLoop]: Abstraction has 20510 states and 22195 transitions. [2021-12-06 21:08:18,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:18,617 INFO L276 IsEmpty]: Start isEmpty. Operand 20510 states and 22195 transitions. [2021-12-06 21:08:18,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 864 [2021-12-06 21:08:18,632 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:18,633 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:18,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-06 21:08:18,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:08:18,835 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:18,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:18,836 INFO L85 PathProgramCache]: Analyzing trace with hash 747293827, now seen corresponding path program 1 times [2021-12-06 21:08:18,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:18,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478077751] [2021-12-06 21:08:18,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:18,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:19,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2389 backedges. 1245 proven. 428 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2021-12-06 21:08:19,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:19,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478077751] [2021-12-06 21:08:19,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478077751] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 21:08:19,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515326949] [2021-12-06 21:08:19,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:19,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:08:19,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:08:19,276 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:08:19,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 21:08:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:19,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 21:08:19,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:08:20,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2389 backedges. 1382 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2021-12-06 21:08:20,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 21:08:20,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515326949] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:20,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 21:08:20,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 15 [2021-12-06 21:08:20,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126463378] [2021-12-06 21:08:20,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:20,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 21:08:20,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:20,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 21:08:20,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-12-06 21:08:20,253 INFO L87 Difference]: Start difference. First operand 20510 states and 22195 transitions. Second operand has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:20,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:20,867 INFO L93 Difference]: Finished difference Result 44148 states and 47734 transitions. [2021-12-06 21:08:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 21:08:20,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 863 [2021-12-06 21:08:20,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:20,884 INFO L225 Difference]: With dead ends: 44148 [2021-12-06 21:08:20,884 INFO L226 Difference]: Without dead ends: 24008 [2021-12-06 21:08:20,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 874 GetRequests, 861 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-12-06 21:08:20,893 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 165 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:20,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 148 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 21:08:20,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24008 states. [2021-12-06 21:08:21,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24008 to 20142. [2021-12-06 21:08:21,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20142 states, 20141 states have (on average 1.081574896976317) internal successors, (21784), 20141 states have internal predecessors, (21784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:21,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20142 states to 20142 states and 21784 transitions. [2021-12-06 21:08:21,099 INFO L78 Accepts]: Start accepts. Automaton has 20142 states and 21784 transitions. Word has length 863 [2021-12-06 21:08:21,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:21,099 INFO L470 AbstractCegarLoop]: Abstraction has 20142 states and 21784 transitions. [2021-12-06 21:08:21,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:21,100 INFO L276 IsEmpty]: Start isEmpty. Operand 20142 states and 21784 transitions. [2021-12-06 21:08:21,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 874 [2021-12-06 21:08:21,115 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:21,116 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:21,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 21:08:21,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:08:21,317 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:21,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:21,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1448162269, now seen corresponding path program 1 times [2021-12-06 21:08:21,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:21,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603014368] [2021-12-06 21:08:21,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:21,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:21,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2399 backedges. 1032 proven. 651 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2021-12-06 21:08:21,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:21,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603014368] [2021-12-06 21:08:21,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603014368] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 21:08:21,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247273909] [2021-12-06 21:08:21,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:21,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:08:21,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:08:21,722 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:08:21,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 21:08:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:21,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 21:08:21,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:08:22,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2399 backedges. 815 proven. 0 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2021-12-06 21:08:22,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 21:08:22,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247273909] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:22,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 21:08:22,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2021-12-06 21:08:22,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601000533] [2021-12-06 21:08:22,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:22,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:08:22,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:22,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:08:22,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-12-06 21:08:22,494 INFO L87 Difference]: Start difference. First operand 20142 states and 21784 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:22,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:22,961 INFO L93 Difference]: Finished difference Result 41207 states and 44536 transitions. [2021-12-06 21:08:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:08:22,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 873 [2021-12-06 21:08:22,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:22,978 INFO L225 Difference]: With dead ends: 41207 [2021-12-06 21:08:22,978 INFO L226 Difference]: Without dead ends: 21435 [2021-12-06 21:08:22,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 882 GetRequests, 873 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-12-06 21:08:22,987 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 98 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:22,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 348 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 21:08:23,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21435 states. [2021-12-06 21:08:23,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21435 to 19958. [2021-12-06 21:08:23,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19958 states, 19957 states have (on average 1.0793205391591922) internal successors, (21540), 19957 states have internal predecessors, (21540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:23,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19958 states to 19958 states and 21540 transitions. [2021-12-06 21:08:23,237 INFO L78 Accepts]: Start accepts. Automaton has 19958 states and 21540 transitions. Word has length 873 [2021-12-06 21:08:23,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:23,238 INFO L470 AbstractCegarLoop]: Abstraction has 19958 states and 21540 transitions. [2021-12-06 21:08:23,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:23,238 INFO L276 IsEmpty]: Start isEmpty. Operand 19958 states and 21540 transitions. [2021-12-06 21:08:23,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 935 [2021-12-06 21:08:23,258 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:08:23,259 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:23,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 21:08:23,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-12-06 21:08:23,461 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:08:23,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:08:23,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1116372708, now seen corresponding path program 1 times [2021-12-06 21:08:23,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:08:23,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990685859] [2021-12-06 21:08:23,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:08:23,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:08:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:08:23,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2976 backedges. 1385 proven. 0 refuted. 0 times theorem prover too weak. 1591 trivial. 0 not checked. [2021-12-06 21:08:23,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:08:23,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990685859] [2021-12-06 21:08:23,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990685859] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:08:23,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:08:23,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:08:23,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453064012] [2021-12-06 21:08:23,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:08:23,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:08:23,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:08:23,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:08:23,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:23,767 INFO L87 Difference]: Start difference. First operand 19958 states and 21540 transitions. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:24,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:08:24,224 INFO L93 Difference]: Finished difference Result 38077 states and 41065 transitions. [2021-12-06 21:08:24,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:08:24,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 934 [2021-12-06 21:08:24,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:08:24,225 INFO L225 Difference]: With dead ends: 38077 [2021-12-06 21:08:24,225 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 21:08:24,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:08:24,234 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 110 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 21:08:24,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 346 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 21:08:24,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 21:08:24,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 21:08:24,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:24,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 21:08:24,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 934 [2021-12-06 21:08:24,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:08:24,235 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 21:08:24,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:08:24,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 21:08:24,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 21:08:24,237 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 21:08:24,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 21:08:24,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 21:08:34,943 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-12-06 21:08:34,943 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,943 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-12-06 21:08:34,943 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,943 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,943 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,943 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,943 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,943 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-12-06 21:08:34,944 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse1 (= ~a25~0 11)) (.cse6 (<= ~a23~0 138)) (.cse4 (<= ~a23~0 312)) (.cse9 (= ~a4~0 0)) (.cse5 (<= ~a25~0 10)) (.cse7 (= ~a25~0 13)) (.cse10 (< 306 ~a23~0)) (.cse8 (= ~a25~0 12)) (.cse0 (<= (div (div ~a23~0 5) 5) 127750)) (.cse2 (<= 141 ~a29~0)) (.cse3 (= ~a4~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ~a25~0 9) .cse3 .cse4) (and .cse5 .cse6 .cse3) (and .cse1 .cse3 .cse4) (and .cse7 (<= ~a29~0 220) .cse3 .cse4) (and (or .cse8 .cse1) .cse0 (<= (+ 28470 ~a29~0) 0) .cse3) (and .cse7 .cse9 .cse6) (and .cse7 (<= ~a29~0 245) .cse2 .cse3) (and .cse8 .cse0 .cse9) (and .cse7 (<= 261 ~a29~0) .cse3 .cse4) (and .cse9 .cse1 .cse6) (and .cse1 (< 277 ~a29~0) .cse3) (and .cse7 .cse6 .cse3) (and .cse0 .cse5 .cse10 .cse3) (and .cse8 .cse3 .cse4) (and .cse8 .cse9 (<= (+ ~a29~0 554036) 0)) (and .cse8 .cse9 .cse2) (and .cse0 .cse9 .cse5) (and .cse5 .cse2 .cse3) (and .cse7 .cse0 .cse10 .cse3) (and .cse8 .cse0 .cse2 .cse3))) [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-12-06 21:08:34,945 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-12-06 21:08:34,946 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse1 (= ~a25~0 11)) (.cse6 (<= ~a23~0 138)) (.cse4 (<= ~a23~0 312)) (.cse9 (= ~a4~0 0)) (.cse5 (<= ~a25~0 10)) (.cse7 (= ~a25~0 13)) (.cse10 (< 306 ~a23~0)) (.cse8 (= ~a25~0 12)) (.cse0 (<= (div (div ~a23~0 5) 5) 127750)) (.cse2 (<= 141 ~a29~0)) (.cse3 (= ~a4~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ~a25~0 9) .cse3 .cse4) (and .cse5 .cse6 .cse3) (and .cse1 .cse3 .cse4) (and .cse7 (<= ~a29~0 220) .cse3 .cse4) (and (or .cse8 .cse1) .cse0 (<= (+ 28470 ~a29~0) 0) .cse3) (and .cse7 .cse9 .cse6) (and .cse7 (<= ~a29~0 245) .cse2 .cse3) (and .cse8 .cse0 .cse9) (and .cse7 (<= 261 ~a29~0) .cse3 .cse4) (and .cse9 .cse1 .cse6) (and .cse1 (< 277 ~a29~0) .cse3) (and .cse7 .cse6 .cse3) (and .cse0 .cse5 .cse10 .cse3) (and .cse8 .cse3 .cse4) (and .cse8 .cse9 (<= (+ ~a29~0 554036) 0)) (and .cse8 .cse9 .cse2) (and .cse0 .cse9 .cse5) (and .cse5 .cse2 .cse3) (and .cse7 .cse0 .cse10 .cse3) (and .cse8 .cse0 .cse2 .cse3))) [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,947 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,948 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,949 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 148) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,950 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,951 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,952 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-12-06 21:08:34,953 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,954 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-12-06 21:08:34,955 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,956 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,957 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,957 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,957 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,957 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,957 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-12-06 21:08:34,957 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-12-06 21:08:34,957 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,957 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,957 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-12-06 21:08:34,957 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-12-06 21:08:34,957 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-12-06 21:08:34,957 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-12-06 21:08:34,959 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:08:34,960 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 21:08:34,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 09:08:34 BoogieIcfgContainer [2021-12-06 21:08:34,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 21:08:34,977 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 21:08:34,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 21:08:34,977 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 21:08:34,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:07:54" (3/4) ... [2021-12-06 21:08:34,979 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 21:08:34,998 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-06 21:08:34,999 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-06 21:08:35,000 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 21:08:35,002 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 21:08:35,088 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 21:08:35,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 21:08:35,089 INFO L158 Benchmark]: Toolchain (without parser) took 42100.23ms. Allocated memory was 115.3MB in the beginning and 935.3MB in the end (delta: 820.0MB). Free memory was 72.9MB in the beginning and 252.8MB in the end (delta: -179.9MB). Peak memory consumption was 640.3MB. Max. memory is 16.1GB. [2021-12-06 21:08:35,089 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory was 93.3MB in the beginning and 93.2MB in the end (delta: 78.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:08:35,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.00ms. Allocated memory is still 115.3MB. Free memory was 72.7MB in the beginning and 58.6MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 21:08:35,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.41ms. Allocated memory is still 115.3MB. Free memory was 58.6MB in the beginning and 80.2MB in the end (delta: -21.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2021-12-06 21:08:35,089 INFO L158 Benchmark]: Boogie Preprocessor took 114.41ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 70.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 21:08:35,090 INFO L158 Benchmark]: RCFGBuilder took 1062.14ms. Allocated memory was 115.3MB in the beginning and 146.8MB in the end (delta: 31.5MB). Free memory was 70.6MB in the beginning and 79.3MB in the end (delta: -8.7MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2021-12-06 21:08:35,090 INFO L158 Benchmark]: TraceAbstraction took 40191.04ms. Allocated memory was 146.8MB in the beginning and 935.3MB in the end (delta: 788.5MB). Free memory was 78.1MB in the beginning and 278.0MB in the end (delta: -199.9MB). Peak memory consumption was 724.3MB. Max. memory is 16.1GB. [2021-12-06 21:08:35,090 INFO L158 Benchmark]: Witness Printer took 111.48ms. Allocated memory is still 935.3MB. Free memory was 278.0MB in the beginning and 252.8MB in the end (delta: 25.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-06 21:08:35,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory was 93.3MB in the beginning and 93.2MB in the end (delta: 78.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.00ms. Allocated memory is still 115.3MB. Free memory was 72.7MB in the beginning and 58.6MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.41ms. Allocated memory is still 115.3MB. Free memory was 58.6MB in the beginning and 80.2MB in the end (delta: -21.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.41ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 70.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1062.14ms. Allocated memory was 115.3MB in the beginning and 146.8MB in the end (delta: 31.5MB). Free memory was 70.6MB in the beginning and 79.3MB in the end (delta: -8.7MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * TraceAbstraction took 40191.04ms. Allocated memory was 146.8MB in the beginning and 935.3MB in the end (delta: 788.5MB). Free memory was 78.1MB in the beginning and 278.0MB in the end (delta: -199.9MB). Peak memory consumption was 724.3MB. Max. memory is 16.1GB. * Witness Printer took 111.48ms. Allocated memory is still 935.3MB. Free memory was 278.0MB in the beginning and 252.8MB in the end (delta: 25.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 148]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 40.1s, OverallIterations: 25, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 16.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3946 SdHoareTripleChecker+Valid, 14.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3946 mSDsluCounter, 6173 SdHoareTripleChecker+Invalid, 11.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 688 mSDsCounter, 2512 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16668 IncrementalHoareTripleChecker+Invalid, 19180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2512 mSolverCounterUnsat, 5485 mSDtfsCounter, 16668 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3537 GetRequests, 3474 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20510occurred in iteration=22, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 25 MinimizatonAttempts, 22425 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 217 NumberOfFragments, 543 HoareAnnotationTreeSize, 3 FomulaSimplifications, 11620 FormulaSimplificationTreeSizeReduction, 6.9s HoareSimplificationTime, 3 FomulaSimplificationsInter, 63190 FormulaSimplificationTreeSizeReductionInter, 3.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 14035 NumberOfCodeBlocks, 14035 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 14250 ConstructedInterpolants, 0 QuantifiedInterpolants, 47015 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4203 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 31 InterpolantComputations, 25 PerfectInterpolantSequences, 25747/27304 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((a23 / 5 / 5 <= 127750 && a25 == 11) && 141 <= a29) && a4 == 1) || ((a25 == 9 && a4 == 1) && a23 <= 312)) || ((a25 <= 10 && a23 <= 138) && a4 == 1)) || ((a25 == 11 && a4 == 1) && a23 <= 312)) || (((a25 == 13 && a29 <= 220) && a4 == 1) && a23 <= 312)) || ((((a25 == 12 || a25 == 11) && a23 / 5 / 5 <= 127750) && 28470 + a29 <= 0) && a4 == 1)) || ((a25 == 13 && a4 == 0) && a23 <= 138)) || (((a25 == 13 && a29 <= 245) && 141 <= a29) && a4 == 1)) || ((a25 == 12 && a23 / 5 / 5 <= 127750) && a4 == 0)) || (((a25 == 13 && 261 <= a29) && a4 == 1) && a23 <= 312)) || ((a4 == 0 && a25 == 11) && a23 <= 138)) || ((a25 == 11 && 277 < a29) && a4 == 1)) || ((a25 == 13 && a23 <= 138) && a4 == 1)) || (((a23 / 5 / 5 <= 127750 && a25 <= 10) && 306 < a23) && a4 == 1)) || ((a25 == 12 && a4 == 1) && a23 <= 312)) || ((a25 == 12 && a4 == 0) && a29 + 554036 <= 0)) || ((a25 == 12 && a4 == 0) && 141 <= a29)) || ((a23 / 5 / 5 <= 127750 && a4 == 0) && a25 <= 10)) || ((a25 <= 10 && 141 <= a29) && a4 == 1)) || (((a25 == 13 && a23 / 5 / 5 <= 127750) && 306 < a23) && a4 == 1)) || (((a25 == 12 && a23 / 5 / 5 <= 127750) && 141 <= a29) && a4 == 1) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((a23 / 5 / 5 <= 127750 && a25 == 11) && 141 <= a29) && a4 == 1) || ((a25 == 9 && a4 == 1) && a23 <= 312)) || ((a25 <= 10 && a23 <= 138) && a4 == 1)) || ((a25 == 11 && a4 == 1) && a23 <= 312)) || (((a25 == 13 && a29 <= 220) && a4 == 1) && a23 <= 312)) || ((((a25 == 12 || a25 == 11) && a23 / 5 / 5 <= 127750) && 28470 + a29 <= 0) && a4 == 1)) || ((a25 == 13 && a4 == 0) && a23 <= 138)) || (((a25 == 13 && a29 <= 245) && 141 <= a29) && a4 == 1)) || ((a25 == 12 && a23 / 5 / 5 <= 127750) && a4 == 0)) || (((a25 == 13 && 261 <= a29) && a4 == 1) && a23 <= 312)) || ((a4 == 0 && a25 == 11) && a23 <= 138)) || ((a25 == 11 && 277 < a29) && a4 == 1)) || ((a25 == 13 && a23 <= 138) && a4 == 1)) || (((a23 / 5 / 5 <= 127750 && a25 <= 10) && 306 < a23) && a4 == 1)) || ((a25 == 12 && a4 == 1) && a23 <= 312)) || ((a25 == 12 && a4 == 0) && a29 + 554036 <= 0)) || ((a25 == 12 && a4 == 0) && 141 <= a29)) || ((a23 / 5 / 5 <= 127750 && a4 == 0) && a25 <= 10)) || ((a25 <= 10 && 141 <= a29) && a4 == 1)) || (((a25 == 13 && a23 / 5 / 5 <= 127750) && 306 < a23) && a4 == 1)) || (((a25 == 12 && a23 / 5 / 5 <= 127750) && 141 <= a29) && a4 == 1) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-06 21:08:35,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822e418a-35c0-47bb-800a-ab1891f6b4b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE