./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/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_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/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 64bit --witnessprinter.graph.data.programhash f25e8d9a29012500b38126aa22b2b7d181aad99a845cece264158253e2ec92e3 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:59:23,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:59:23,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:59:23,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:59:23,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:59:23,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:59:23,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:59:23,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:59:23,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:59:23,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:59:23,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:59:23,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:59:23,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:59:23,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:59:23,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:59:23,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:59:23,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:59:23,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:59:23,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:59:23,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:59:23,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:59:23,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:59:23,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:59:23,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:59:23,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:59:23,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:59:23,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:59:23,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:59:23,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:59:23,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:59:23,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:59:23,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:59:23,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:59:23,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:59:23,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:59:23,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:59:23,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:59:23,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:59:23,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:59:23,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:59:23,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:59:23,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 23:59:23,818 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:59:23,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:59:23,818 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:59:23,818 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:59:23,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:59:23,819 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:59:23,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:59:23,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:59:23,820 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:59:23,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:59:23,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:59:23,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:59:23,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:59:23,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:59:23,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:59:23,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:59:23,820 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:59:23,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:59:23,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:59:23,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:59:23,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:59:23,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:59:23,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:59:23,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:59:23,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:59:23,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:59:23,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:59:23,822 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:59:23,822 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:59:23,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:59:23,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:59:23,822 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_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f25e8d9a29012500b38126aa22b2b7d181aad99a845cece264158253e2ec92e3 [2021-12-06 23:59:23,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:59:24,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:59:24,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:59:24,004 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:59:24,005 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:59:24,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i [2021-12-06 23:59:24,049 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/data/52d34ebb0/87b15c15c0794188ba9a7c07aef21419/FLAGf552b026f [2021-12-06 23:59:24,639 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:59:24,640 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i [2021-12-06 23:59:24,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/data/52d34ebb0/87b15c15c0794188ba9a7c07aef21419/FLAGf552b026f [2021-12-06 23:59:25,084 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/data/52d34ebb0/87b15c15c0794188ba9a7c07aef21419 [2021-12-06 23:59:25,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:59:25,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:59:25,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:59:25,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:59:25,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:59:25,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:59:25" (1/1) ... [2021-12-06 23:59:25,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5908be66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:25, skipping insertion in model container [2021-12-06 23:59:25,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:59:25" (1/1) ... [2021-12-06 23:59:25,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:59:25,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:59:26,103 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_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i[192897,192910] [2021-12-06 23:59:26,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:59:26,147 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:59:26,367 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_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i[192897,192910] [2021-12-06 23:59:26,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:59:26,429 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:59:26,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:26 WrapperNode [2021-12-06 23:59:26,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:59:26,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:59:26,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:59:26,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:59:26,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:26" (1/1) ... [2021-12-06 23:59:26,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:26" (1/1) ... [2021-12-06 23:59:26,561 INFO L137 Inliner]: procedures = 236, calls = 1201, calls flagged for inlining = 124, calls inlined = 121, statements flattened = 3651 [2021-12-06 23:59:26,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:59:26,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:59:26,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:59:26,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:59:26,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:26" (1/1) ... [2021-12-06 23:59:26,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:26" (1/1) ... [2021-12-06 23:59:26,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:26" (1/1) ... [2021-12-06 23:59:26,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:26" (1/1) ... [2021-12-06 23:59:26,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:26" (1/1) ... [2021-12-06 23:59:26,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:26" (1/1) ... [2021-12-06 23:59:26,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:26" (1/1) ... [2021-12-06 23:59:26,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:59:26,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:59:26,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:59:26,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:59:26,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:26" (1/1) ... [2021-12-06 23:59:26,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:59:26,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:26,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:59:26,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:59:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2021-12-06 23:59:26,773 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2021-12-06 23:59:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 23:59:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 23:59:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure vfs_fsync [2021-12-06 23:59:26,773 INFO L138 BoogieDeclarations]: Found implementation of procedure vfs_fsync [2021-12-06 23:59:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-06 23:59:26,773 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-06 23:59:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-06 23:59:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-06 23:59:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 23:59:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 23:59:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2021-12-06 23:59:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2021-12-06 23:59:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent [2021-12-06 23:59:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent [2021-12-06 23:59:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-06 23:59:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-06 23:59:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_xor [2021-12-06 23:59:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_xor [2021-12-06 23:59:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure invalidate_bdev [2021-12-06 23:59:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure invalidate_bdev [2021-12-06 23:59:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-06 23:59:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-06 23:59:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-06 23:59:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-06 23:59:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure huge_encode_dev [2021-12-06 23:59:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure huge_encode_dev [2021-12-06 23:59:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure lo_do_transfer [2021-12-06 23:59:26,776 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_do_transfer [2021-12-06 23:59:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure loop_sysfs_exit [2021-12-06 23:59:26,776 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_sysfs_exit [2021-12-06 23:59:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-12-06 23:59:26,776 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-12-06 23:59:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2021-12-06 23:59:26,776 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2021-12-06 23:59:26,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 23:59:26,776 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 23:59:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure loop_alloc [2021-12-06 23:59:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_alloc [2021-12-06 23:59:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure loop_make_request [2021-12-06 23:59:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_make_request [2021-12-06 23:59:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure __do_lo_send_write [2021-12-06 23:59:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_lo_send_write [2021-12-06 23:59:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure loop_get_status [2021-12-06 23:59:26,777 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_get_status [2021-12-06 23:59:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure loop_clr_fd [2021-12-06 23:59:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_clr_fd [2021-12-06 23:59:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 23:59:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure figure_loop_size [2021-12-06 23:59:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure figure_loop_size [2021-12-06 23:59:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl_by_bdev [2021-12-06 23:59:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl_by_bdev [2021-12-06 23:59:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 23:59:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-06 23:59:26,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-06 23:59:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 23:59:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 23:59:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-06 23:59:26,779 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-06 23:59:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-06 23:59:26,779 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-06 23:59:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2021-12-06 23:59:26,779 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2021-12-06 23:59:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-06 23:59:26,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-06 23:59:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_capacity [2021-12-06 23:59:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_capacity [2021-12-06 23:59:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2021-12-06 23:59:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2021-12-06 23:59:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 23:59:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-06 23:59:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-06 23:59:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure loop_free [2021-12-06 23:59:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_free [2021-12-06 23:59:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_none [2021-12-06 23:59:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_none [2021-12-06 23:59:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 23:59:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure bd_set_size [2021-12-06 23:59:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_set_size [2021-12-06 23:59:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 23:59:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2021-12-06 23:59:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2021-12-06 23:59:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_set_gfp_mask [2021-12-06 23:59:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_set_gfp_mask [2021-12-06 23:59:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure xor_init [2021-12-06 23:59:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure xor_init [2021-12-06 23:59:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2021-12-06 23:59:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2021-12-06 23:59:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 23:59:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 23:59:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 23:59:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 23:59:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-12-06 23:59:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-12-06 23:59:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-06 23:59:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-06 23:59:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 23:59:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-06 23:59:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-06 23:59:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure __kmap_atomic [2021-12-06 23:59:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmap_atomic [2021-12-06 23:59:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-06 23:59:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-06 23:59:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 23:59:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-06 23:59:26,784 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-06 23:59:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:59:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure get_loop_size [2021-12-06 23:59:26,784 INFO L138 BoogieDeclarations]: Found implementation of procedure get_loop_size [2021-12-06 23:59:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 23:59:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-12-06 23:59:26,784 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-12-06 23:59:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_status [2021-12-06 23:59:26,784 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_status [2021-12-06 23:59:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 23:59:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure lo_ioctl [2021-12-06 23:59:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_ioctl [2021-12-06 23:59:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-06 23:59:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-06 23:59:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-06 23:59:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-06 23:59:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure loop_release_xfer [2021-12-06 23:59:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_release_xfer [2021-12-06 23:59:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2021-12-06 23:59:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2021-12-06 23:59:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2021-12-06 23:59:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2021-12-06 23:59:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-06 23:59:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-06 23:59:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure loop_switch [2021-12-06 23:59:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_switch [2021-12-06 23:59:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_gfp_mask [2021-12-06 23:59:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_gfp_mask [2021-12-06 23:59:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-06 23:59:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-06 23:59:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-06 23:59:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-06 23:59:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-12-06 23:59:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-12-06 23:59:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:59:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:59:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:59:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-06 23:59:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-06 23:59:27,199 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:59:27,202 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:59:27,687 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:59:29,195 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2021-12-06 23:59:29,195 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2021-12-06 23:59:29,211 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-06 23:59:29,211 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-06 23:59:29,525 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-06 23:59:29,525 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-06 23:59:29,771 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:59:29,773 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:59:31,780 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##72: assume !false; [2021-12-06 23:59:31,780 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume false; [2021-12-06 23:59:31,781 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2021-12-06 23:59:31,781 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2021-12-06 23:59:31,816 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:59:31,830 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:59:31,830 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 23:59:31,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:59:31 BoogieIcfgContainer [2021-12-06 23:59:31,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:59:31,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:59:31,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:59:31,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:59:31,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:59:25" (1/3) ... [2021-12-06 23:59:31,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e29e91e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:59:31, skipping insertion in model container [2021-12-06 23:59:31,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:59:26" (2/3) ... [2021-12-06 23:59:31,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e29e91e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:59:31, skipping insertion in model container [2021-12-06 23:59:31,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:59:31" (3/3) ... [2021-12-06 23:59:31,839 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-loop.ko.cil.out.i [2021-12-06 23:59:31,844 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:59:31,844 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 23:59:31,887 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:59:31,892 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 23:59:31,892 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 23:59:31,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 1098 states, 810 states have (on average 1.317283950617284) internal successors, (1067), 823 states have internal predecessors, (1067), 222 states have call successors, (222), 64 states have call predecessors, (222), 64 states have return successors, (222), 221 states have call predecessors, (222), 222 states have call successors, (222) [2021-12-06 23:59:31,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 23:59:31,930 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:31,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:31,931 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:31,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:31,935 INFO L85 PathProgramCache]: Analyzing trace with hash 325416360, now seen corresponding path program 1 times [2021-12-06 23:59:31,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:31,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126069825] [2021-12-06 23:59:31,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:31,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:32,201 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 23:59:32,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:32,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126069825] [2021-12-06 23:59:32,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126069825] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:32,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:32,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:59:32,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587953977] [2021-12-06 23:59:32,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:32,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:59:32,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:32,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:59:32,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:59:32,242 INFO L87 Difference]: Start difference. First operand has 1098 states, 810 states have (on average 1.317283950617284) internal successors, (1067), 823 states have internal predecessors, (1067), 222 states have call successors, (222), 64 states have call predecessors, (222), 64 states have return successors, (222), 221 states have call predecessors, (222), 222 states have call successors, (222) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:32,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:32,470 INFO L93 Difference]: Finished difference Result 3203 states and 4521 transitions. [2021-12-06 23:59:32,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:59:32,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-06 23:59:32,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:32,503 INFO L225 Difference]: With dead ends: 3203 [2021-12-06 23:59:32,503 INFO L226 Difference]: Without dead ends: 2094 [2021-12-06 23:59:32,517 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 23:59:32,520 INFO L933 BasicCegarLoop]: 1834 mSDtfsCounter, 1488 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 3244 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:32,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1488 Valid, 3244 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:59:32,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2021-12-06 23:59:32,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 2091. [2021-12-06 23:59:32,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 1538 states have (on average 1.311443433029909) internal successors, (2017), 1558 states have internal predecessors, (2017), 429 states have call successors, (429), 124 states have call predecessors, (429), 123 states have return successors, (432), 425 states have call predecessors, (432), 427 states have call successors, (432) [2021-12-06 23:59:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2878 transitions. [2021-12-06 23:59:32,701 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2878 transitions. Word has length 11 [2021-12-06 23:59:32,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:32,702 INFO L470 AbstractCegarLoop]: Abstraction has 2091 states and 2878 transitions. [2021-12-06 23:59:32,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:59:32,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2878 transitions. [2021-12-06 23:59:32,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 23:59:32,712 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:32,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:32,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:59:32,713 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:32,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:32,713 INFO L85 PathProgramCache]: Analyzing trace with hash 879957809, now seen corresponding path program 1 times [2021-12-06 23:59:32,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:32,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189397375] [2021-12-06 23:59:32,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:32,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:32,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 23:59:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:32,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:59:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:32,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:32,858 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 23:59:32,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:32,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189397375] [2021-12-06 23:59:32,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189397375] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:32,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:32,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:59:32,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937309164] [2021-12-06 23:59:32,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:32,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:32,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:32,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:32,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:32,862 INFO L87 Difference]: Start difference. First operand 2091 states and 2878 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:59:34,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:34,358 INFO L93 Difference]: Finished difference Result 4515 states and 6297 transitions. [2021-12-06 23:59:34,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:59:34,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 53 [2021-12-06 23:59:34,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:34,380 INFO L225 Difference]: With dead ends: 4515 [2021-12-06 23:59:34,380 INFO L226 Difference]: Without dead ends: 2505 [2021-12-06 23:59:34,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:59:34,391 INFO L933 BasicCegarLoop]: 1426 mSDtfsCounter, 518 mSDsluCounter, 3117 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 4543 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:34,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [610 Valid, 4543 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 23:59:34,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2021-12-06 23:59:34,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2091. [2021-12-06 23:59:34,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 1538 states have (on average 1.3101430429128738) internal successors, (2015), 1558 states have internal predecessors, (2015), 429 states have call successors, (429), 124 states have call predecessors, (429), 123 states have return successors, (432), 425 states have call predecessors, (432), 427 states have call successors, (432) [2021-12-06 23:59:34,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2876 transitions. [2021-12-06 23:59:34,507 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2876 transitions. Word has length 53 [2021-12-06 23:59:34,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:34,507 INFO L470 AbstractCegarLoop]: Abstraction has 2091 states and 2876 transitions. [2021-12-06 23:59:34,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:59:34,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2876 transitions. [2021-12-06 23:59:34,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 23:59:34,512 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:34,512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:34,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 23:59:34,512 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:34,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:34,513 INFO L85 PathProgramCache]: Analyzing trace with hash -12155950, now seen corresponding path program 1 times [2021-12-06 23:59:34,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:34,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984335699] [2021-12-06 23:59:34,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:34,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:34,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 23:59:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:34,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 23:59:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:34,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:34,611 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 23:59:34,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:34,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984335699] [2021-12-06 23:59:34,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984335699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:34,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:34,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:59:34,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42235766] [2021-12-06 23:59:34,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:34,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:59:34,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:34,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:59:34,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:59:34,614 INFO L87 Difference]: Start difference. First operand 2091 states and 2876 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:59:35,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:35,687 INFO L93 Difference]: Finished difference Result 4588 states and 6382 transitions. [2021-12-06 23:59:35,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:59:35,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 58 [2021-12-06 23:59:35,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:35,707 INFO L225 Difference]: With dead ends: 4588 [2021-12-06 23:59:35,707 INFO L226 Difference]: Without dead ends: 2505 [2021-12-06 23:59:35,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:35,718 INFO L933 BasicCegarLoop]: 1418 mSDtfsCounter, 1951 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:35,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2104 Valid, 2109 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 23:59:35,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2021-12-06 23:59:35,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2091. [2021-12-06 23:59:35,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 1538 states have (on average 1.3088426527958388) internal successors, (2013), 1558 states have internal predecessors, (2013), 429 states have call successors, (429), 124 states have call predecessors, (429), 123 states have return successors, (432), 425 states have call predecessors, (432), 427 states have call successors, (432) [2021-12-06 23:59:35,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2874 transitions. [2021-12-06 23:59:35,812 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2874 transitions. Word has length 58 [2021-12-06 23:59:35,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:35,812 INFO L470 AbstractCegarLoop]: Abstraction has 2091 states and 2874 transitions. [2021-12-06 23:59:35,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:59:35,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2874 transitions. [2021-12-06 23:59:35,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 23:59:35,815 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:35,815 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:35,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 23:59:35,815 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:35,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:35,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1269426878, now seen corresponding path program 1 times [2021-12-06 23:59:35,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:35,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846027026] [2021-12-06 23:59:35,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:35,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:35,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 23:59:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:35,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 23:59:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:35,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:35,910 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 23:59:35,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:35,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846027026] [2021-12-06 23:59:35,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846027026] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:35,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:35,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:59:35,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033189901] [2021-12-06 23:59:35,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:35,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:35,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:35,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:35,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:35,912 INFO L87 Difference]: Start difference. First operand 2091 states and 2874 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:59:37,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:37,076 INFO L93 Difference]: Finished difference Result 4515 states and 6292 transitions. [2021-12-06 23:59:37,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:59:37,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2021-12-06 23:59:37,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:37,096 INFO L225 Difference]: With dead ends: 4515 [2021-12-06 23:59:37,096 INFO L226 Difference]: Without dead ends: 2488 [2021-12-06 23:59:37,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:59:37,105 INFO L933 BasicCegarLoop]: 1422 mSDtfsCounter, 518 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 4529 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:37,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [610 Valid, 4529 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 23:59:37,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2021-12-06 23:59:37,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2074. [2021-12-06 23:59:37,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2074 states, 1527 states have (on average 1.3091028159790439) internal successors, (1999), 1547 states have internal predecessors, (1999), 425 states have call successors, (425), 122 states have call predecessors, (425), 121 states have return successors, (428), 421 states have call predecessors, (428), 423 states have call successors, (428) [2021-12-06 23:59:37,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 2852 transitions. [2021-12-06 23:59:37,191 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 2852 transitions. Word has length 51 [2021-12-06 23:59:37,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:37,191 INFO L470 AbstractCegarLoop]: Abstraction has 2074 states and 2852 transitions. [2021-12-06 23:59:37,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:59:37,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 2852 transitions. [2021-12-06 23:59:37,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 23:59:37,194 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:37,194 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:37,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 23:59:37,194 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:37,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:37,195 INFO L85 PathProgramCache]: Analyzing trace with hash 481179932, now seen corresponding path program 1 times [2021-12-06 23:59:37,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:37,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395247761] [2021-12-06 23:59:37,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:37,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:37,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 23:59:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:37,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 23:59:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:37,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:37,297 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 23:59:37,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:37,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395247761] [2021-12-06 23:59:37,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395247761] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:37,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:37,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:59:37,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872297619] [2021-12-06 23:59:37,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:37,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:59:37,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:37,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:59:37,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:37,299 INFO L87 Difference]: Start difference. First operand 2074 states and 2852 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:59:38,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:38,255 INFO L93 Difference]: Finished difference Result 4514 states and 6290 transitions. [2021-12-06 23:59:38,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:59:38,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2021-12-06 23:59:38,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:38,271 INFO L225 Difference]: With dead ends: 4514 [2021-12-06 23:59:38,271 INFO L226 Difference]: Without dead ends: 2494 [2021-12-06 23:59:38,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:38,280 INFO L933 BasicCegarLoop]: 1411 mSDtfsCounter, 691 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 3251 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:38,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [827 Valid, 3251 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 23:59:38,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2021-12-06 23:59:38,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2075. [2021-12-06 23:59:38,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2075 states, 1528 states have (on average 1.3089005235602094) internal successors, (2000), 1548 states have internal predecessors, (2000), 425 states have call successors, (425), 122 states have call predecessors, (425), 121 states have return successors, (428), 421 states have call predecessors, (428), 423 states have call successors, (428) [2021-12-06 23:59:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2853 transitions. [2021-12-06 23:59:38,369 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2853 transitions. Word has length 56 [2021-12-06 23:59:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:38,369 INFO L470 AbstractCegarLoop]: Abstraction has 2075 states and 2853 transitions. [2021-12-06 23:59:38,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 23:59:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2853 transitions. [2021-12-06 23:59:38,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-06 23:59:38,371 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:38,371 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 23:59:38,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 23:59:38,372 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:38,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:38,372 INFO L85 PathProgramCache]: Analyzing trace with hash -124989242, now seen corresponding path program 1 times [2021-12-06 23:59:38,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:38,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354546746] [2021-12-06 23:59:38,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:38,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:38,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:59:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:38,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:38,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 23:59:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:38,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:59:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:38,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 23:59:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:38,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 23:59:38,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:38,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354546746] [2021-12-06 23:59:38,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354546746] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:38,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148459955] [2021-12-06 23:59:38,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:38,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:38,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:38,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:38,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 23:59:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:38,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 1210 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:59:38,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:38,973 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:38,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:59:39,103 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 23:59:39,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148459955] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 23:59:39,103 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 23:59:39,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2021-12-06 23:59:39,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621720671] [2021-12-06 23:59:39,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 23:59:39,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 23:59:39,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:39,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 23:59:39,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-12-06 23:59:39,106 INFO L87 Difference]: Start difference. First operand 2075 states and 2853 transitions. Second operand has 13 states, 13 states have (on average 7.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2021-12-06 23:59:41,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:41,956 INFO L93 Difference]: Finished difference Result 4711 states and 6702 transitions. [2021-12-06 23:59:41,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:59:41,957 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 80 [2021-12-06 23:59:41,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:41,970 INFO L225 Difference]: With dead ends: 4711 [2021-12-06 23:59:41,970 INFO L226 Difference]: Without dead ends: 2691 [2021-12-06 23:59:41,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-12-06 23:59:41,976 INFO L933 BasicCegarLoop]: 1352 mSDtfsCounter, 1343 mSDsluCounter, 6171 mSDsCounter, 0 mSdLazyCounter, 2765 mSolverCounterSat, 744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 7523 SdHoareTripleChecker+Invalid, 3509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 744 IncrementalHoareTripleChecker+Valid, 2765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:41,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1505 Valid, 7523 Invalid, 3509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [744 Valid, 2765 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-06 23:59:41,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2021-12-06 23:59:42,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2093. [2021-12-06 23:59:42,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2093 states, 1540 states have (on average 1.3064935064935066) internal successors, (2012), 1560 states have internal predecessors, (2012), 431 states have call successors, (431), 122 states have call predecessors, (431), 121 states have return successors, (434), 427 states have call predecessors, (434), 429 states have call successors, (434) [2021-12-06 23:59:42,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2877 transitions. [2021-12-06 23:59:42,059 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2877 transitions. Word has length 80 [2021-12-06 23:59:42,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:42,060 INFO L470 AbstractCegarLoop]: Abstraction has 2093 states and 2877 transitions. [2021-12-06 23:59:42,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2021-12-06 23:59:42,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2877 transitions. [2021-12-06 23:59:42,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-06 23:59:42,062 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:42,063 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:42,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 23:59:42,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:42,263 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:42,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:42,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1267895346, now seen corresponding path program 1 times [2021-12-06 23:59:42,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:42,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458605453] [2021-12-06 23:59:42,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:42,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:59:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 23:59:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 23:59:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:59:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 23:59:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 23:59:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 23:59:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 23:59:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-06 23:59:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 23:59:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,600 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-06 23:59:42,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:42,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458605453] [2021-12-06 23:59:42,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458605453] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:42,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880194431] [2021-12-06 23:59:42,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:42,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:42,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:42,602 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:42,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 23:59:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:42,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 1838 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 23:59:42,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:43,221 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 16 proven. 40 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-12-06 23:59:43,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:59:43,417 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-06 23:59:43,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880194431] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 23:59:43,417 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 23:59:43,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2021-12-06 23:59:43,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625465226] [2021-12-06 23:59:43,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 23:59:43,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-06 23:59:43,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:43,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-06 23:59:43,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=299, Unknown=0, NotChecked=0, Total=462 [2021-12-06 23:59:43,419 INFO L87 Difference]: Start difference. First operand 2093 states and 2877 transitions. Second operand has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 20 states have internal predecessors, (134), 14 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (31), 14 states have call predecessors, (31), 14 states have call successors, (31) [2021-12-06 23:59:48,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:48,006 INFO L93 Difference]: Finished difference Result 4735 states and 6735 transitions. [2021-12-06 23:59:48,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 23:59:48,006 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 20 states have internal predecessors, (134), 14 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (31), 14 states have call predecessors, (31), 14 states have call successors, (31) Word has length 159 [2021-12-06 23:59:48,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:48,019 INFO L225 Difference]: With dead ends: 4735 [2021-12-06 23:59:48,019 INFO L226 Difference]: Without dead ends: 2715 [2021-12-06 23:59:48,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2021-12-06 23:59:48,025 INFO L933 BasicCegarLoop]: 1360 mSDtfsCounter, 803 mSDsluCounter, 6667 mSDsCounter, 0 mSdLazyCounter, 3144 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 8027 SdHoareTripleChecker+Invalid, 3527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 3144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:48,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 8027 Invalid, 3527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 3144 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-06 23:59:48,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2021-12-06 23:59:48,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 2117. [2021-12-06 23:59:48,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1556 states have (on average 1.3033419023136248) internal successors, (2028), 1576 states have internal predecessors, (2028), 439 states have call successors, (439), 122 states have call predecessors, (439), 121 states have return successors, (442), 435 states have call predecessors, (442), 437 states have call successors, (442) [2021-12-06 23:59:48,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2909 transitions. [2021-12-06 23:59:48,096 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2909 transitions. Word has length 159 [2021-12-06 23:59:48,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:48,097 INFO L470 AbstractCegarLoop]: Abstraction has 2117 states and 2909 transitions. [2021-12-06 23:59:48,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 20 states have internal predecessors, (134), 14 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (31), 14 states have call predecessors, (31), 14 states have call successors, (31) [2021-12-06 23:59:48,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2909 transitions. [2021-12-06 23:59:48,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-12-06 23:59:48,101 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:48,101 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:48,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 23:59:48,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-06 23:59:48,303 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:48,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:48,305 INFO L85 PathProgramCache]: Analyzing trace with hash -165761428, now seen corresponding path program 2 times [2021-12-06 23:59:48,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:48,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613138389] [2021-12-06 23:59:48,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:48,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:59:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 23:59:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 23:59:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:59:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 23:59:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 23:59:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 23:59:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 23:59:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 23:59:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 23:59:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-06 23:59:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 23:59:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 23:59:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-06 23:59:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-06 23:59:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 23:59:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-06 23:59:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-06 23:59:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:48,738 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 29 proven. 14 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-12-06 23:59:48,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:48,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613138389] [2021-12-06 23:59:48,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613138389] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:59:48,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44573208] [2021-12-06 23:59:48,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 23:59:48,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:48,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:59:48,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:59:48,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 23:59:49,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 23:59:49,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 23:59:49,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-06 23:59:49,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:59:49,332 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2021-12-06 23:59:49,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:59:49,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44573208] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:49,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 23:59:49,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-12-06 23:59:49,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603048046] [2021-12-06 23:59:49,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:49,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:59:49,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:49,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:59:49,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:59:49,334 INFO L87 Difference]: Start difference. First operand 2117 states and 2909 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:59:50,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:50,239 INFO L93 Difference]: Finished difference Result 5104 states and 7041 transitions. [2021-12-06 23:59:50,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:59:50,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 248 [2021-12-06 23:59:50,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:50,257 INFO L225 Difference]: With dead ends: 5104 [2021-12-06 23:59:50,257 INFO L226 Difference]: Without dead ends: 4081 [2021-12-06 23:59:50,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-12-06 23:59:50,262 INFO L933 BasicCegarLoop]: 2734 mSDtfsCounter, 1556 mSDsluCounter, 11864 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 14598 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:50,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1579 Valid, 14598 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 23:59:50,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2021-12-06 23:59:50,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 4027. [2021-12-06 23:59:50,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4027 states, 2956 states have (on average 1.3095399188092016) internal successors, (3871), 2995 states have internal predecessors, (3871), 833 states have call successors, (833), 236 states have call predecessors, (833), 237 states have return successors, (849), 827 states have call predecessors, (849), 831 states have call successors, (849) [2021-12-06 23:59:50,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4027 states to 4027 states and 5553 transitions. [2021-12-06 23:59:50,392 INFO L78 Accepts]: Start accepts. Automaton has 4027 states and 5553 transitions. Word has length 248 [2021-12-06 23:59:50,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:50,393 INFO L470 AbstractCegarLoop]: Abstraction has 4027 states and 5553 transitions. [2021-12-06 23:59:50,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:59:50,393 INFO L276 IsEmpty]: Start isEmpty. Operand 4027 states and 5553 transitions. [2021-12-06 23:59:50,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-12-06 23:59:50,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:50,397 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:50,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 23:59:50,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:59:50,598 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:50,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:50,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1712920856, now seen corresponding path program 1 times [2021-12-06 23:59:50,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:50,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584872314] [2021-12-06 23:59:50,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:50,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:59:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 23:59:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 23:59:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-06 23:59:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-06 23:59:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 23:59:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-06 23:59:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 23:59:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-06 23:59:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:50,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 23:59:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:51,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-06 23:59:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:51,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:51,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 23:59:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:51,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 23:59:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:51,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:51,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-06 23:59:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:51,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-06 23:59:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:51,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:51,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-06 23:59:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:51,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-06 23:59:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:51,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-06 23:59:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:51,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:59:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:51,072 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2021-12-06 23:59:51,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:51,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584872314] [2021-12-06 23:59:51,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584872314] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:51,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:51,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:59:51,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499324856] [2021-12-06 23:59:51,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:51,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:59:51,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:51,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:59:51,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:59:51,073 INFO L87 Difference]: Start difference. First operand 4027 states and 5553 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-06 23:59:54,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:00,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:00,412 INFO L93 Difference]: Finished difference Result 7785 states and 11433 transitions. [2021-12-07 00:00:00,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 00:00:00,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 255 [2021-12-07 00:00:00,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:00,444 INFO L225 Difference]: With dead ends: 7785 [2021-12-07 00:00:00,444 INFO L226 Difference]: Without dead ends: 7782 [2021-12-07 00:00:00,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:00:00,447 INFO L933 BasicCegarLoop]: 2802 mSDtfsCounter, 4395 mSDsluCounter, 4363 mSDsCounter, 0 mSdLazyCounter, 4211 mSolverCounterSat, 1679 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4863 SdHoareTripleChecker+Valid, 7165 SdHoareTripleChecker+Invalid, 5890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1679 IncrementalHoareTripleChecker+Valid, 4211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:00,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4863 Valid, 7165 Invalid, 5890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1679 Valid, 4211 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2021-12-07 00:00:00,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7782 states. [2021-12-07 00:00:00,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7782 to 6161. [2021-12-07 00:00:00,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6161 states, 4507 states have (on average 1.3106279121366762) internal successors, (5907), 4578 states have internal predecessors, (5907), 1285 states have call successors, (1285), 349 states have call predecessors, (1285), 368 states have return successors, (1386), 1289 states have call predecessors, (1386), 1283 states have call successors, (1386) [2021-12-07 00:00:00,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6161 states to 6161 states and 8578 transitions. [2021-12-07 00:00:00,677 INFO L78 Accepts]: Start accepts. Automaton has 6161 states and 8578 transitions. Word has length 255 [2021-12-07 00:00:00,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:00,677 INFO L470 AbstractCegarLoop]: Abstraction has 6161 states and 8578 transitions. [2021-12-07 00:00:00,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-07 00:00:00,678 INFO L276 IsEmpty]: Start isEmpty. Operand 6161 states and 8578 transitions. [2021-12-07 00:00:00,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-12-07 00:00:00,681 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:00,682 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:00,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 00:00:00,682 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:00,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:00,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2024634197, now seen corresponding path program 1 times [2021-12-07 00:00:00,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:00:00,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557027225] [2021-12-07 00:00:00,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:00,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:00:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 00:00:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-07 00:00:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-07 00:00:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:00:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 00:00:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-07 00:00:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-07 00:00:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-07 00:00:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-07 00:00:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-07 00:00:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-07 00:00:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 00:00:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-07 00:00:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-07 00:00:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-07 00:00:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-07 00:00:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-07 00:00:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-07 00:00:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:00,996 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2021-12-07 00:00:00,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:00:00,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557027225] [2021-12-07 00:00:00,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557027225] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:00,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:00:00,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:00:00,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222821777] [2021-12-07 00:00:00,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:00,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:00:00,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:00:00,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:00:00,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:00:00,997 INFO L87 Difference]: Start difference. First operand 6161 states and 8578 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-07 00:00:05,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:05,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:05,817 INFO L93 Difference]: Finished difference Result 14445 states and 21080 transitions. [2021-12-07 00:00:05,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:00:05,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 254 [2021-12-07 00:00:05,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:05,848 INFO L225 Difference]: With dead ends: 14445 [2021-12-07 00:00:05,848 INFO L226 Difference]: Without dead ends: 8391 [2021-12-07 00:00:05,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:00:05,867 INFO L933 BasicCegarLoop]: 1435 mSDtfsCounter, 722 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 3861 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:05,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [876 Valid, 3861 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-07 00:00:05,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8391 states. [2021-12-07 00:00:06,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8391 to 6804. [2021-12-07 00:00:06,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6804 states, 4988 states have (on average 1.3235765838011226) internal successors, (6602), 5071 states have internal predecessors, (6602), 1447 states have call successors, (1447), 349 states have call predecessors, (1447), 368 states have return successors, (1586), 1445 states have call predecessors, (1586), 1445 states have call successors, (1586) [2021-12-07 00:00:06,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6804 states to 6804 states and 9635 transitions. [2021-12-07 00:00:06,119 INFO L78 Accepts]: Start accepts. Automaton has 6804 states and 9635 transitions. Word has length 254 [2021-12-07 00:00:06,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:06,120 INFO L470 AbstractCegarLoop]: Abstraction has 6804 states and 9635 transitions. [2021-12-07 00:00:06,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-07 00:00:06,121 INFO L276 IsEmpty]: Start isEmpty. Operand 6804 states and 9635 transitions. [2021-12-07 00:00:06,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-12-07 00:00:06,125 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:06,125 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:06,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 00:00:06,125 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:06,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:06,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1820542204, now seen corresponding path program 1 times [2021-12-07 00:00:06,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:00:06,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169815322] [2021-12-07 00:00:06,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:06,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:00:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 00:00:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-07 00:00:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-07 00:00:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-07 00:00:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-07 00:00:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-07 00:00:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-07 00:00:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-07 00:00:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-07 00:00:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-07 00:00:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-07 00:00:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 00:00:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-07 00:00:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-07 00:00:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-07 00:00:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-07 00:00:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-07 00:00:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-07 00:00:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,449 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 29 proven. 14 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2021-12-07 00:00:06,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:00:06,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169815322] [2021-12-07 00:00:06,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169815322] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:00:06,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501708430] [2021-12-07 00:00:06,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:06,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:00:06,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:00:06,451 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:00:06,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-07 00:00:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:06,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 2674 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-07 00:00:06,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:07,140 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2021-12-07 00:00:07,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:07,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501708430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:07,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:00:07,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2021-12-07 00:00:07,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575031649] [2021-12-07 00:00:07,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:07,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:00:07,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:00:07,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:00:07,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:00:07,142 INFO L87 Difference]: Start difference. First operand 6804 states and 9635 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-07 00:00:07,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:07,366 INFO L93 Difference]: Finished difference Result 13611 states and 19278 transitions. [2021-12-07 00:00:07,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:00:07,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 256 [2021-12-07 00:00:07,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:07,388 INFO L225 Difference]: With dead ends: 13611 [2021-12-07 00:00:07,388 INFO L226 Difference]: Without dead ends: 6793 [2021-12-07 00:00:07,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:00:07,407 INFO L933 BasicCegarLoop]: 1476 mSDtfsCounter, 0 mSDsluCounter, 4418 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5894 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:07,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5894 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:00:07,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6793 states. [2021-12-07 00:00:07,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6793 to 6793. [2021-12-07 00:00:07,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6793 states, 4981 states have (on average 1.3234290303151977) internal successors, (6592), 5063 states have internal predecessors, (6592), 1445 states have call successors, (1445), 347 states have call predecessors, (1445), 366 states have return successors, (1584), 1443 states have call predecessors, (1584), 1443 states have call successors, (1584) [2021-12-07 00:00:07,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6793 states to 6793 states and 9621 transitions. [2021-12-07 00:00:07,638 INFO L78 Accepts]: Start accepts. Automaton has 6793 states and 9621 transitions. Word has length 256 [2021-12-07 00:00:07,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:07,639 INFO L470 AbstractCegarLoop]: Abstraction has 6793 states and 9621 transitions. [2021-12-07 00:00:07,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-07 00:00:07,639 INFO L276 IsEmpty]: Start isEmpty. Operand 6793 states and 9621 transitions. [2021-12-07 00:00:07,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2021-12-07 00:00:07,646 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:07,646 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:07,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-07 00:00:07,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:00:07,847 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:07,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:07,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1402142028, now seen corresponding path program 1 times [2021-12-07 00:00:07,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:00:07,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589531191] [2021-12-07 00:00:07,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:07,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:00:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 00:00:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-07 00:00:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 00:00:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 00:00:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-07 00:00:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-07 00:00:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 00:00:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-07 00:00:08,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-07 00:00:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 00:00:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-07 00:00:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-07 00:00:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 00:00:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-07 00:00:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-07 00:00:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 00:00:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-07 00:00:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-12-07 00:00:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 00:00:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-07 00:00:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-12-07 00:00:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-07 00:00:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-12-07 00:00:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-12-07 00:00:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-12-07 00:00:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-12-07 00:00:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:08,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2092 backedges. 15 proven. 186 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2021-12-07 00:00:08,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:00:08,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589531191] [2021-12-07 00:00:08,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589531191] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:00:08,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083412913] [2021-12-07 00:00:08,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:08,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:00:08,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:00:08,631 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:00:08,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-07 00:00:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:09,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 4650 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-07 00:00:09,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:10,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2092 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 1716 trivial. 0 not checked. [2021-12-07 00:00:10,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:10,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083412913] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:10,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:00:10,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2021-12-07 00:00:10,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338701510] [2021-12-07 00:00:10,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:10,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:00:10,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:00:10,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:00:10,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:00:10,191 INFO L87 Difference]: Start difference. First operand 6793 states and 9621 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 00:00:10,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:10,417 INFO L93 Difference]: Finished difference Result 13584 states and 19261 transitions. [2021-12-07 00:00:10,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:00:10,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 440 [2021-12-07 00:00:10,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:10,449 INFO L225 Difference]: With dead ends: 13584 [2021-12-07 00:00:10,449 INFO L226 Difference]: Without dead ends: 6801 [2021-12-07 00:00:10,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 539 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-12-07 00:00:10,467 INFO L933 BasicCegarLoop]: 1465 mSDtfsCounter, 1 mSDsluCounter, 5853 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7318 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:10,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 7318 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:00:10,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6801 states. [2021-12-07 00:00:10,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6801 to 6795. [2021-12-07 00:00:10,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6795 states, 4982 states have (on average 1.323364110798876) internal successors, (6593), 5065 states have internal predecessors, (6593), 1445 states have call successors, (1445), 347 states have call predecessors, (1445), 367 states have return successors, (1590), 1443 states have call predecessors, (1590), 1443 states have call successors, (1590) [2021-12-07 00:00:10,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6795 states to 6795 states and 9628 transitions. [2021-12-07 00:00:10,701 INFO L78 Accepts]: Start accepts. Automaton has 6795 states and 9628 transitions. Word has length 440 [2021-12-07 00:00:10,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:10,702 INFO L470 AbstractCegarLoop]: Abstraction has 6795 states and 9628 transitions. [2021-12-07 00:00:10,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 00:00:10,702 INFO L276 IsEmpty]: Start isEmpty. Operand 6795 states and 9628 transitions. [2021-12-07 00:00:10,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2021-12-07 00:00:10,706 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:10,706 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 16, 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, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:10,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-07 00:00:10,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:00:10,907 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:10,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:10,907 INFO L85 PathProgramCache]: Analyzing trace with hash 257773420, now seen corresponding path program 1 times [2021-12-07 00:00:10,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:00:10,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330393913] [2021-12-07 00:00:10,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:10,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:00:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-07 00:00:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 00:00:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-07 00:00:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-07 00:00:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-07 00:00:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-07 00:00:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-07 00:00:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-07 00:00:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-07 00:00:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-07 00:00:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-07 00:00:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-07 00:00:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-07 00:00:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-07 00:00:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-07 00:00:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-07 00:00:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-07 00:00:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-12-07 00:00:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-07 00:00:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-12-07 00:00:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-12-07 00:00:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 00:00:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-07 00:00:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-12-07 00:00:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2021-12-07 00:00:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2021-12-07 00:00:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2021-12-07 00:00:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:11,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2288 backedges. 15 proven. 186 refuted. 0 times theorem prover too weak. 2087 trivial. 0 not checked. [2021-12-07 00:00:11,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:00:11,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330393913] [2021-12-07 00:00:11,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330393913] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:00:11,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097929114] [2021-12-07 00:00:11,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:11,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:00:11,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:00:11,708 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:00:11,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-07 00:00:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:12,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 4946 conjuncts, 39 conjunts are in the unsatisfiable core [2021-12-07 00:00:12,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2288 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 1616 trivial. 0 not checked. [2021-12-07 00:00:13,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:00:13,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097929114] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:00:13,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:00:13,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 10 [2021-12-07 00:00:13,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129833890] [2021-12-07 00:00:13,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:00:13,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:00:13,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:00:13,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:00:13,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:00:13,296 INFO L87 Difference]: Start difference. First operand 6795 states and 9628 transitions. Second operand has 8 states, 8 states have (on average 16.25) internal successors, (130), 7 states have internal predecessors, (130), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-07 00:00:13,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:13,524 INFO L93 Difference]: Finished difference Result 13588 states and 19269 transitions. [2021-12-07 00:00:13,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:00:13,526 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 7 states have internal predecessors, (130), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 496 [2021-12-07 00:00:13,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:13,547 INFO L225 Difference]: With dead ends: 13588 [2021-12-07 00:00:13,547 INFO L226 Difference]: Without dead ends: 6801 [2021-12-07 00:00:13,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 613 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-12-07 00:00:13,590 INFO L933 BasicCegarLoop]: 1463 mSDtfsCounter, 6 mSDsluCounter, 8766 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10229 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:13,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 10229 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:00:13,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6801 states. [2021-12-07 00:00:13,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6801 to 6795. [2021-12-07 00:00:13,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6795 states, 4982 states have (on average 1.323364110798876) internal successors, (6593), 5065 states have internal predecessors, (6593), 1445 states have call successors, (1445), 347 states have call predecessors, (1445), 367 states have return successors, (1589), 1443 states have call predecessors, (1589), 1443 states have call successors, (1589) [2021-12-07 00:00:13,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6795 states to 6795 states and 9627 transitions. [2021-12-07 00:00:13,840 INFO L78 Accepts]: Start accepts. Automaton has 6795 states and 9627 transitions. Word has length 496 [2021-12-07 00:00:13,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:13,840 INFO L470 AbstractCegarLoop]: Abstraction has 6795 states and 9627 transitions. [2021-12-07 00:00:13,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 7 states have internal predecessors, (130), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-07 00:00:13,840 INFO L276 IsEmpty]: Start isEmpty. Operand 6795 states and 9627 transitions. [2021-12-07 00:00:13,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2021-12-07 00:00:13,844 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:13,845 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 16, 16, 16, 16, 16, 16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:13,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-07 00:00:14,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:00:14,045 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:14,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:14,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1505253812, now seen corresponding path program 2 times [2021-12-07 00:00:14,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:00:14,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444717089] [2021-12-07 00:00:14,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:14,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:00:14,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-07 00:00:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 00:00:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-07 00:00:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-07 00:00:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-07 00:00:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 00:00:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 00:00:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-07 00:00:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-07 00:00:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 00:00:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-07 00:00:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-07 00:00:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-07 00:00:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 00:00:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-07 00:00:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-07 00:00:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-07 00:00:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 00:00:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-07 00:00:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-07 00:00:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-07 00:00:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 00:00:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-12-07 00:00:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-12-07 00:00:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-07 00:00:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 00:00:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-12-07 00:00:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2021-12-07 00:00:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-07 00:00:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-07 00:00:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2021-12-07 00:00:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2021-12-07 00:00:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2021-12-07 00:00:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2021-12-07 00:00:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:14,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2932 backedges. 17 proven. 142 refuted. 0 times theorem prover too weak. 2773 trivial. 0 not checked. [2021-12-07 00:00:14,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:00:14,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444717089] [2021-12-07 00:00:14,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444717089] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:00:14,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91517767] [2021-12-07 00:00:14,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:00:14,837 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:00:14,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:00:14,838 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:00:14,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-07 00:00:17,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 00:00:17,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:00:17,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 5242 conjuncts, 76 conjunts are in the unsatisfiable core [2021-12-07 00:00:17,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:00:17,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:00:17,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 00:00:18,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2932 backedges. 1680 proven. 2 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2021-12-07 00:00:18,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:00:18,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91517767] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:00:18,424 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:00:18,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15] total 21 [2021-12-07 00:00:18,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183528343] [2021-12-07 00:00:18,424 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:00:18,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-07 00:00:18,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:00:18,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-07 00:00:18,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2021-12-07 00:00:18,426 INFO L87 Difference]: Start difference. First operand 6795 states and 9627 transitions. Second operand has 21 states, 21 states have (on average 7.428571428571429) internal successors, (156), 16 states have internal predecessors, (156), 4 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (29), 6 states have call predecessors, (29), 4 states have call successors, (29) [2021-12-07 00:00:25,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:00:25,046 INFO L93 Difference]: Finished difference Result 15177 states and 22229 transitions. [2021-12-07 00:00:25,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 00:00:25,047 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.428571428571429) internal successors, (156), 16 states have internal predecessors, (156), 4 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (29), 6 states have call predecessors, (29), 4 states have call successors, (29) Word has length 552 [2021-12-07 00:00:25,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:00:25,089 INFO L225 Difference]: With dead ends: 15177 [2021-12-07 00:00:25,089 INFO L226 Difference]: Without dead ends: 8392 [2021-12-07 00:00:25,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1022 GetRequests, 992 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=790, Unknown=0, NotChecked=0, Total=930 [2021-12-07 00:00:25,102 INFO L933 BasicCegarLoop]: 1334 mSDtfsCounter, 614 mSDsluCounter, 9858 mSDsCounter, 0 mSdLazyCounter, 4896 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 11192 SdHoareTripleChecker+Invalid, 5943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 4896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 718 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:00:25,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [716 Valid, 11192 Invalid, 5943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 4896 Invalid, 0 Unknown, 718 Unchecked, 6.1s Time] [2021-12-07 00:00:25,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8392 states. [2021-12-07 00:00:25,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8392 to 6810. [2021-12-07 00:00:25,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6810 states, 4992 states have (on average 1.3227163461538463) internal successors, (6603), 5075 states have internal predecessors, (6603), 1445 states have call successors, (1445), 352 states have call predecessors, (1445), 372 states have return successors, (1588), 1443 states have call predecessors, (1588), 1443 states have call successors, (1588) [2021-12-07 00:00:25,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6810 states to 6810 states and 9636 transitions. [2021-12-07 00:00:25,337 INFO L78 Accepts]: Start accepts. Automaton has 6810 states and 9636 transitions. Word has length 552 [2021-12-07 00:00:25,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:00:25,337 INFO L470 AbstractCegarLoop]: Abstraction has 6810 states and 9636 transitions. [2021-12-07 00:00:25,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.428571428571429) internal successors, (156), 16 states have internal predecessors, (156), 4 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (29), 6 states have call predecessors, (29), 4 states have call successors, (29) [2021-12-07 00:00:25,338 INFO L276 IsEmpty]: Start isEmpty. Operand 6810 states and 9636 transitions. [2021-12-07 00:00:25,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2021-12-07 00:00:25,342 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:00:25,342 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:00:25,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-07 00:00:25,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-07 00:00:25,543 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:00:25,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:00:25,543 INFO L85 PathProgramCache]: Analyzing trace with hash -870176852, now seen corresponding path program 1 times [2021-12-07 00:00:25,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:00:25,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169940840] [2021-12-07 00:00:25,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:25,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:00:33,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:34,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:00:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:36,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:36,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:36,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:36,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:36,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-07 00:00:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:36,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:36,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:00:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:36,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-07 00:00:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:37,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-07 00:00:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:40,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:41,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:41,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:41,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:41,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-07 00:00:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:41,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:41,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:00:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:41,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-07 00:00:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:41,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-07 00:00:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:44,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:44,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:44,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:44,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:44,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-07 00:00:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:44,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:00:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-07 00:00:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:44,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-07 00:00:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:46,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:46,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:46,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:46,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:46,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-07 00:00:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:46,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:46,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:00:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:46,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-07 00:00:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:46,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-07 00:00:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:48,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:48,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:48,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:48,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-07 00:00:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:48,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:48,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:00:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-12-07 00:00:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:48,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-12-07 00:00:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:50,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:50,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:50,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:50,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:50,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-07 00:00:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:50,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:50,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:00:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:50,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2021-12-07 00:00:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:50,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2021-12-07 00:00:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:52,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:53,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:53,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:53,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:53,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-07 00:00:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:53,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:53,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:00:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:53,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2021-12-07 00:00:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:53,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2021-12-07 00:00:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:57,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 00:00:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:57,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:57,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-07 00:00:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:57,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:57,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-07 00:00:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:57,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:00:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:57,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-07 00:00:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:57,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2021-12-07 00:00:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:57,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2021-12-07 00:00:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:57,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 584 [2021-12-07 00:00:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:57,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2021-12-07 00:00:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:00:57,674 INFO L134 CoverageAnalysis]: Checked inductivity of 4024 backedges. 789 proven. 784 refuted. 0 times theorem prover too weak. 2451 trivial. 0 not checked. [2021-12-07 00:00:57,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:00:57,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169940840] [2021-12-07 00:00:57,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169940840] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:00:57,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382659883] [2021-12-07 00:00:57,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:00:57,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:00:57,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:00:57,675 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:00:57,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-07 00:01:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:37,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 5538 conjuncts, 783 conjunts are in the unsatisfiable core [2021-12-07 00:01:37,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:01:37,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:37,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-07 00:01:37,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:37,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-07 00:01:38,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-07 00:01:38,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-07 00:01:38,272 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-07 00:01:38,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-12-07 00:01:38,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-07 00:01:40,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:40,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:40,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:40,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:40,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:40,074 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-07 00:01:40,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2021-12-07 00:01:40,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-07 00:01:41,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:41,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:41,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:41,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:41,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:41,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:41,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:41,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:41,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:41,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:41,334 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-12-07 00:01:41,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 29 [2021-12-07 00:01:41,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:01:41,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:01:41,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-07 00:01:43,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:43,366 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-12-07 00:01:43,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 71 treesize of output 70 [2021-12-07 00:01:43,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:01:43,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:01:45,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:45,957 INFO L354 Elim1Store]: treesize reduction 260, result has 16.1 percent of original size [2021-12-07 00:01:45,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 85 treesize of output 102 [2021-12-07 00:01:45,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2021-12-07 00:01:45,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2021-12-07 00:01:47,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-12-07 00:01:47,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-07 00:01:47,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-07 00:01:47,411 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-12-07 00:01:47,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 34 [2021-12-07 00:01:47,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-07 00:01:49,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:49,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:49,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:49,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:49,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:49,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:49,207 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-12-07 00:01:49,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 37 [2021-12-07 00:01:49,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-07 00:01:50,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:50,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:50,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:50,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:50,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:50,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:50,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:50,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:50,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:50,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:50,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:50,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:50,324 INFO L354 Elim1Store]: treesize reduction 30, result has 9.1 percent of original size [2021-12-07 00:01:50,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 44 [2021-12-07 00:01:50,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:01:50,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:01:50,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-07 00:01:52,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:52,416 INFO L354 Elim1Store]: treesize reduction 133, result has 15.3 percent of original size [2021-12-07 00:01:52,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 85 treesize of output 85 [2021-12-07 00:01:52,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:01:52,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:01:54,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:54,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:01:55,283 INFO L354 Elim1Store]: treesize reduction 438, result has 22.9 percent of original size [2021-12-07 00:01:55,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 24 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 33 case distinctions, treesize of input 118 treesize of output 207 [2021-12-07 00:01:55,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2021-12-07 00:01:55,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2021-12-07 00:02:01,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-07 00:02:01,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-07 00:02:01,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 26 [2021-12-07 00:02:01,562 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-12-07 00:02:01,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 22 [2021-12-07 00:02:01,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-07 00:02:03,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:03,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:03,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:03,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:03,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:03,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:03,138 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-12-07 00:02:03,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 25 [2021-12-07 00:02:03,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-07 00:02:04,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:04,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:04,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:04,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:04,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:04,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:04,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:04,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:04,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:04,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:04,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:04,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:04,392 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-12-07 00:02:04,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 42 treesize of output 32 [2021-12-07 00:02:04,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:02:04,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:02:04,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-07 00:02:06,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:06,745 INFO L354 Elim1Store]: treesize reduction 136, result has 13.4 percent of original size [2021-12-07 00:02:06,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 76 treesize of output 73 [2021-12-07 00:02:06,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:02:06,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:02:09,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:09,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:02:10,116 INFO L354 Elim1Store]: treesize reduction 628, result has 21.7 percent of original size [2021-12-07 00:02:10,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 48 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 45 case distinctions, treesize of input 124 treesize of output 251 [2021-12-07 00:02:10,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2021-12-07 00:02:10,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2021-12-07 00:02:34,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-12-07 00:02:34,263 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-12-07 00:02:34,264 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-12-07 00:02:34,265 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:02:34,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84] total 84 [2021-12-07 00:02:34,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776505978] [2021-12-07 00:02:34,265 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-12-07 00:02:34,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2021-12-07 00:02:34,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:02:34,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2021-12-07 00:02:34,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1113, Invalid=16370, Unknown=73, NotChecked=0, Total=17556 [2021-12-07 00:02:34,271 INFO L87 Difference]: Start difference. First operand 6810 states and 9636 transitions. Second operand has 84 states, 78 states have (on average 2.4615384615384617) internal successors, (192), 71 states have internal predecessors, (192), 30 states have call successors, (38), 4 states have call predecessors, (38), 14 states have return successors, (38), 29 states have call predecessors, (38), 30 states have call successors, (38) [2021-12-07 00:02:34,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 00:02:34,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 349 SyntacticMatches, 41 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11180 ImplicationChecksByTransitivity, 26.9s TimeCoverageRelationStatistics Valid=1113, Invalid=16370, Unknown=73, NotChecked=0, Total=17556 [2021-12-07 00:02:34,276 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:02:34,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:02:34,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-07 00:02:34,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-07 00:02:34,480 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@2511c11d at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:455) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:103) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:868) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:784) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-07 00:02:34,488 INFO L158 Benchmark]: Toolchain (without parser) took 189399.90ms. Allocated memory was 111.1MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 77.4MB in the beginning and 238.3MB in the end (delta: -161.0MB). Peak memory consumption was 913.8MB. Max. memory is 16.1GB. [2021-12-07 00:02:34,488 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory was 46.3MB in the beginning and 46.2MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:02:34,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1342.23ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 77.2MB in the beginning and 87.5MB in the end (delta: -10.3MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2021-12-07 00:02:34,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 130.76ms. Allocated memory is still 138.4MB. Free memory was 87.5MB in the beginning and 66.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-07 00:02:34,492 INFO L158 Benchmark]: Boogie Preprocessor took 146.05ms. Allocated memory is still 138.4MB. Free memory was 66.5MB in the beginning and 71.5MB in the end (delta: -5.0MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2021-12-07 00:02:34,493 INFO L158 Benchmark]: RCFGBuilder took 5125.00ms. Allocated memory was 138.4MB in the beginning and 253.8MB in the end (delta: 115.3MB). Free memory was 71.5MB in the beginning and 136.9MB in the end (delta: -65.4MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. [2021-12-07 00:02:34,494 INFO L158 Benchmark]: TraceAbstraction took 182651.44ms. Allocated memory was 253.8MB in the beginning and 1.2GB in the end (delta: 929.0MB). Free memory was 136.9MB in the beginning and 238.3MB in the end (delta: -101.5MB). Peak memory consumption was 829.0MB. Max. memory is 16.1GB. [2021-12-07 00:02:34,499 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 75.5MB. Free memory was 46.3MB in the beginning and 46.2MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1342.23ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 77.2MB in the beginning and 87.5MB in the end (delta: -10.3MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 130.76ms. Allocated memory is still 138.4MB. Free memory was 87.5MB in the beginning and 66.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 146.05ms. Allocated memory is still 138.4MB. Free memory was 66.5MB in the beginning and 71.5MB in the end (delta: -5.0MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * RCFGBuilder took 5125.00ms. Allocated memory was 138.4MB in the beginning and 253.8MB in the end (delta: 115.3MB). Free memory was 71.5MB in the beginning and 136.9MB in the end (delta: -65.4MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. * TraceAbstraction took 182651.44ms. Allocated memory was 253.8MB in the beginning and 1.2GB in the end (delta: 929.0MB). Free memory was 136.9MB in the beginning and 238.3MB in the end (delta: -101.5MB). Peak memory consumption was 829.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@2511c11d de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@2511c11d: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/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_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/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 64bit --witnessprinter.graph.data.programhash f25e8d9a29012500b38126aa22b2b7d181aad99a845cece264158253e2ec92e3 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:02:35,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:02:35,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:02:35,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:02:35,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:02:35,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:02:35,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:02:35,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:02:35,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:02:35,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:02:35,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:02:35,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:02:35,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:02:35,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:02:35,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:02:35,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:02:35,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:02:35,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:02:35,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:02:35,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:02:35,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:02:35,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:02:35,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:02:35,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:02:35,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:02:35,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:02:35,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:02:35,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:02:35,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:02:35,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:02:35,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:02:35,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:02:35,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:02:35,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:02:35,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:02:35,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:02:35,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:02:35,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:02:35,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:02:35,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:02:35,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:02:35,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-07 00:02:35,935 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:02:35,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:02:35,936 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:02:35,936 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:02:35,937 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:02:35,937 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:02:35,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:02:35,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:02:35,938 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:02:35,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:02:35,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:02:35,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:02:35,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:02:35,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:02:35,939 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-07 00:02:35,939 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-07 00:02:35,939 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-07 00:02:35,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:02:35,939 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:02:35,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:02:35,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:02:35,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:02:35,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:02:35,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:02:35,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:02:35,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:02:35,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:02:35,941 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-07 00:02:35,941 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-07 00:02:35,941 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:02:35,941 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:02:35,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:02:35,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:02:35,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-07 00:02:35,942 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f25e8d9a29012500b38126aa22b2b7d181aad99a845cece264158253e2ec92e3 [2021-12-07 00:02:36,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:02:36,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:02:36,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:02:36,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:02:36,209 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:02:36,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i [2021-12-07 00:02:36,255 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/data/fda75a307/80f55c50a44149139853f874048e38f5/FLAGd50b0283c [2021-12-07 00:02:36,802 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:02:36,803 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i [2021-12-07 00:02:36,834 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/data/fda75a307/80f55c50a44149139853f874048e38f5/FLAGd50b0283c [2021-12-07 00:02:36,977 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/data/fda75a307/80f55c50a44149139853f874048e38f5 [2021-12-07 00:02:36,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:02:36,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:02:36,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:02:36,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:02:36,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:02:36,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:02:36" (1/1) ... [2021-12-07 00:02:36,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba35618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:02:36, skipping insertion in model container [2021-12-07 00:02:36,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:02:36" (1/1) ... [2021-12-07 00:02:37,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:02:37,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:02:38,074 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_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i[192897,192910] [2021-12-07 00:02:38,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:02:38,130 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-07 00:02:38,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:02:38,362 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_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i[192897,192910] [2021-12-07 00:02:38,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:02:38,383 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:02:38,562 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_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i[192897,192910] [2021-12-07 00:02:38,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:02:38,616 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:02:38,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:02:38 WrapperNode [2021-12-07 00:02:38,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:02:38,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:02:38,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:02:38,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:02:38,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:02:38" (1/1) ... [2021-12-07 00:02:38,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:02:38" (1/1) ... [2021-12-07 00:02:38,752 INFO L137 Inliner]: procedures = 251, calls = 1201, calls flagged for inlining = 126, calls inlined = 115, statements flattened = 3397 [2021-12-07 00:02:38,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:02:38,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:02:38,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:02:38,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:02:38,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:02:38" (1/1) ... [2021-12-07 00:02:38,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:02:38" (1/1) ... [2021-12-07 00:02:38,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:02:38" (1/1) ... [2021-12-07 00:02:38,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:02:38" (1/1) ... [2021-12-07 00:02:38,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:02:38" (1/1) ... [2021-12-07 00:02:38,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:02:38" (1/1) ... [2021-12-07 00:02:38,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:02:38" (1/1) ... [2021-12-07 00:02:38,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:02:38,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:02:38,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:02:38,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:02:38,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:02:38" (1/1) ... [2021-12-07 00:02:38,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:02:38,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:02:38,908 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:02:38,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:02:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-07 00:02:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2021-12-07 00:02:38,938 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2021-12-07 00:02:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-07 00:02:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-07 00:02:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-07 00:02:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-07 00:02:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-07 00:02:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure vfs_fsync [2021-12-07 00:02:38,939 INFO L138 BoogieDeclarations]: Found implementation of procedure vfs_fsync [2021-12-07 00:02:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-07 00:02:38,939 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-07 00:02:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-07 00:02:38,939 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-07 00:02:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-07 00:02:38,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-07 00:02:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2021-12-07 00:02:38,939 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2021-12-07 00:02:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent [2021-12-07 00:02:38,940 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent [2021-12-07 00:02:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-07 00:02:38,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-07 00:02:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_xor [2021-12-07 00:02:38,940 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_xor [2021-12-07 00:02:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure invalidate_bdev [2021-12-07 00:02:38,940 INFO L138 BoogieDeclarations]: Found implementation of procedure invalidate_bdev [2021-12-07 00:02:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-07 00:02:38,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-07 00:02:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-07 00:02:38,940 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-07 00:02:38,941 INFO L130 BoogieDeclarations]: Found specification of procedure huge_encode_dev [2021-12-07 00:02:38,941 INFO L138 BoogieDeclarations]: Found implementation of procedure huge_encode_dev [2021-12-07 00:02:38,941 INFO L130 BoogieDeclarations]: Found specification of procedure lo_do_transfer [2021-12-07 00:02:38,941 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_do_transfer [2021-12-07 00:02:38,941 INFO L130 BoogieDeclarations]: Found specification of procedure loop_sysfs_exit [2021-12-07 00:02:38,941 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_sysfs_exit [2021-12-07 00:02:38,941 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-12-07 00:02:38,941 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-12-07 00:02:38,941 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2021-12-07 00:02:38,942 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2021-12-07 00:02:38,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-07 00:02:38,942 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-07 00:02:38,942 INFO L130 BoogieDeclarations]: Found specification of procedure loop_alloc [2021-12-07 00:02:38,942 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_alloc [2021-12-07 00:02:38,942 INFO L130 BoogieDeclarations]: Found specification of procedure loop_make_request [2021-12-07 00:02:38,942 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_make_request [2021-12-07 00:02:38,942 INFO L130 BoogieDeclarations]: Found specification of procedure __do_lo_send_write [2021-12-07 00:02:38,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_lo_send_write [2021-12-07 00:02:38,942 INFO L130 BoogieDeclarations]: Found specification of procedure loop_get_status [2021-12-07 00:02:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_get_status [2021-12-07 00:02:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure loop_clr_fd [2021-12-07 00:02:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_clr_fd [2021-12-07 00:02:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:02:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure figure_loop_size [2021-12-07 00:02:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure figure_loop_size [2021-12-07 00:02:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl_by_bdev [2021-12-07 00:02:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl_by_bdev [2021-12-07 00:02:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 00:02:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-07 00:02:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-07 00:02:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-07 00:02:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-07 00:02:38,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-07 00:02:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:02:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-07 00:02:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-07 00:02:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-07 00:02:38,944 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-07 00:02:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-07 00:02:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-07 00:02:38,945 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-07 00:02:38,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-07 00:02:38,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-07 00:02:38,945 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2021-12-07 00:02:38,945 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2021-12-07 00:02:38,945 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-07 00:02:38,945 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-07 00:02:38,945 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_capacity [2021-12-07 00:02:38,945 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_capacity [2021-12-07 00:02:38,945 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2021-12-07 00:02:38,946 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2021-12-07 00:02:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-07 00:02:38,946 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-07 00:02:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure loop_free [2021-12-07 00:02:38,946 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_free [2021-12-07 00:02:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_none [2021-12-07 00:02:38,946 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_none [2021-12-07 00:02:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure bd_set_size [2021-12-07 00:02:38,946 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_set_size [2021-12-07 00:02:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2021-12-07 00:02:38,946 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2021-12-07 00:02:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_set_gfp_mask [2021-12-07 00:02:38,947 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_set_gfp_mask [2021-12-07 00:02:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure xor_init [2021-12-07 00:02:38,947 INFO L138 BoogieDeclarations]: Found implementation of procedure xor_init [2021-12-07 00:02:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2021-12-07 00:02:38,947 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2021-12-07 00:02:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-07 00:02:38,947 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-07 00:02:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-07 00:02:38,947 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-07 00:02:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-12-07 00:02:38,947 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-12-07 00:02:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-07 00:02:38,948 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-07 00:02:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-07 00:02:38,948 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-07 00:02:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-07 00:02:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-07 00:02:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-07 00:02:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-07 00:02:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure __kmap_atomic [2021-12-07 00:02:38,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmap_atomic [2021-12-07 00:02:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-07 00:02:38,949 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-07 00:02:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 00:02:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-07 00:02:38,949 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-07 00:02:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:02:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure get_loop_size [2021-12-07 00:02:38,949 INFO L138 BoogieDeclarations]: Found implementation of procedure get_loop_size [2021-12-07 00:02:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 00:02:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-12-07 00:02:38,949 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-12-07 00:02:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_status [2021-12-07 00:02:38,950 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_status [2021-12-07 00:02:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-07 00:02:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-07 00:02:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure lo_ioctl [2021-12-07 00:02:38,950 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_ioctl [2021-12-07 00:02:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-07 00:02:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-07 00:02:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-07 00:02:38,950 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-07 00:02:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-07 00:02:38,950 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-07 00:02:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure loop_release_xfer [2021-12-07 00:02:38,951 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_release_xfer [2021-12-07 00:02:38,951 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2021-12-07 00:02:38,951 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2021-12-07 00:02:38,951 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2021-12-07 00:02:38,951 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2021-12-07 00:02:38,951 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-07 00:02:38,951 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-07 00:02:38,951 INFO L130 BoogieDeclarations]: Found specification of procedure loop_switch [2021-12-07 00:02:38,951 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_switch [2021-12-07 00:02:38,951 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_gfp_mask [2021-12-07 00:02:38,951 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_gfp_mask [2021-12-07 00:02:38,951 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-07 00:02:38,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-07 00:02:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-12-07 00:02:38,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-12-07 00:02:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-07 00:02:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:02:38,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:02:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-07 00:02:38,952 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-07 00:02:39,341 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:02:39,344 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:02:49,510 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-07 00:02:56,597 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2021-12-07 00:02:56,597 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2021-12-07 00:02:56,652 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-07 00:02:56,652 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-07 00:03:01,861 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-07 00:03:01,861 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-07 00:03:03,300 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-07 00:03:03,301 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-07 00:03:08,372 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##72: assume !false; [2021-12-07 00:03:08,372 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume false; [2021-12-07 00:03:08,372 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2021-12-07 00:03:08,372 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2021-12-07 00:03:08,449 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:03:08,463 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:03:08,463 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-07 00:03:08,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:03:08 BoogieIcfgContainer [2021-12-07 00:03:08,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:03:08,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:03:08,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:03:08,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:03:08,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:02:36" (1/3) ... [2021-12-07 00:03:08,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69647a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:03:08, skipping insertion in model container [2021-12-07 00:03:08,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:02:38" (2/3) ... [2021-12-07 00:03:08,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69647a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:03:08, skipping insertion in model container [2021-12-07 00:03:08,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:03:08" (3/3) ... [2021-12-07 00:03:08,472 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-loop.ko.cil.out.i [2021-12-07 00:03:08,476 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:03:08,476 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:03:08,527 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:03:08,531 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 [2021-12-07 00:03:08,532 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:03:08,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 1065 states, 783 states have (on average 1.314176245210728) internal successors, (1029), 796 states have internal predecessors, (1029), 217 states have call successors, (217), 63 states have call predecessors, (217), 63 states have return successors, (217), 216 states have call predecessors, (217), 217 states have call successors, (217) [2021-12-07 00:03:08,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-07 00:03:08,563 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:08,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:08,563 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:08,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:08,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1951091590, now seen corresponding path program 1 times [2021-12-07 00:03:08,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:08,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416635272] [2021-12-07 00:03:08,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:08,577 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:08,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:08,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:08,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-07 00:03:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:09,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:03:09,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:09,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:03:09,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:09,122 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:09,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416635272] [2021-12-07 00:03:09,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416635272] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:09,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:09,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:03:09,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596360192] [2021-12-07 00:03:09,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:09,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:03:09,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:09,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:03:09,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:03:09,152 INFO L87 Difference]: Start difference. First operand has 1065 states, 783 states have (on average 1.314176245210728) internal successors, (1029), 796 states have internal predecessors, (1029), 217 states have call successors, (217), 63 states have call predecessors, (217), 63 states have return successors, (217), 216 states have call predecessors, (217), 217 states have call successors, (217) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:03:10,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:12,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:12,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:12,630 INFO L93 Difference]: Finished difference Result 3171 states and 4459 transitions. [2021-12-07 00:03:12,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:03:12,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-07 00:03:12,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:12,678 INFO L225 Difference]: With dead ends: 3171 [2021-12-07 00:03:12,678 INFO L226 Difference]: Without dead ends: 2105 [2021-12-07 00:03:12,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:03:12,690 INFO L933 BasicCegarLoop]: 1662 mSDtfsCounter, 1449 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:12,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 3102 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-07 00:03:12,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2021-12-07 00:03:12,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 1056. [2021-12-07 00:03:12,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 776 states have (on average 1.306701030927835) internal successors, (1014), 787 states have internal predecessors, (1014), 217 states have call successors, (217), 63 states have call predecessors, (217), 62 states have return successors, (215), 214 states have call predecessors, (215), 215 states have call successors, (215) [2021-12-07 00:03:12,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1446 transitions. [2021-12-07 00:03:12,795 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1446 transitions. Word has length 11 [2021-12-07 00:03:12,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:12,795 INFO L470 AbstractCegarLoop]: Abstraction has 1056 states and 1446 transitions. [2021-12-07 00:03:12,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:03:12,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1446 transitions. [2021-12-07 00:03:12,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-07 00:03:12,796 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:12,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:12,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-07 00:03:12,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:12,997 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:12,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:12,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1860787978, now seen corresponding path program 1 times [2021-12-07 00:03:12,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:12,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831255478] [2021-12-07 00:03:12,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:12,999 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:12,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:13,000 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:13,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-07 00:03:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:13,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:03:13,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:13,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:03:13,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:13,508 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:13,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831255478] [2021-12-07 00:03:13,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831255478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:13,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:13,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:03:13,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476471356] [2021-12-07 00:03:13,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:13,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:03:13,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:13,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:03:13,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:03:13,510 INFO L87 Difference]: Start difference. First operand 1056 states and 1446 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:03:13,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:13,583 INFO L93 Difference]: Finished difference Result 2103 states and 2879 transitions. [2021-12-07 00:03:13,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:03:13,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-07 00:03:13,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:13,592 INFO L225 Difference]: With dead ends: 2103 [2021-12-07 00:03:13,592 INFO L226 Difference]: Without dead ends: 1056 [2021-12-07 00:03:13,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:03:13,600 INFO L933 BasicCegarLoop]: 1439 mSDtfsCounter, 1437 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:13,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1437 Valid, 1439 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:03:13,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2021-12-07 00:03:13,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1056. [2021-12-07 00:03:13,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 776 states have (on average 1.3028350515463918) internal successors, (1011), 787 states have internal predecessors, (1011), 217 states have call successors, (217), 63 states have call predecessors, (217), 62 states have return successors, (215), 214 states have call predecessors, (215), 215 states have call successors, (215) [2021-12-07 00:03:13,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1443 transitions. [2021-12-07 00:03:13,666 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1443 transitions. Word has length 12 [2021-12-07 00:03:13,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:13,666 INFO L470 AbstractCegarLoop]: Abstraction has 1056 states and 1443 transitions. [2021-12-07 00:03:13,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:03:13,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1443 transitions. [2021-12-07 00:03:13,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-07 00:03:13,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:13,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:13,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-07 00:03:13,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:13,867 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:13,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:13,868 INFO L85 PathProgramCache]: Analyzing trace with hash -126069323, now seen corresponding path program 1 times [2021-12-07 00:03:13,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:13,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602119875] [2021-12-07 00:03:13,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:13,870 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:13,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:13,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:13,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-07 00:03:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:14,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:03:14,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:03:14,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:14,313 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:14,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602119875] [2021-12-07 00:03:14,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602119875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:14,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:14,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:03:14,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488252333] [2021-12-07 00:03:14,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:14,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:03:14,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:14,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:03:14,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:03:14,315 INFO L87 Difference]: Start difference. First operand 1056 states and 1443 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:03:14,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:14,408 INFO L93 Difference]: Finished difference Result 2095 states and 2868 transitions. [2021-12-07 00:03:14,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:03:14,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-07 00:03:14,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:14,418 INFO L225 Difference]: With dead ends: 2095 [2021-12-07 00:03:14,418 INFO L226 Difference]: Without dead ends: 1044 [2021-12-07 00:03:14,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:03:14,432 INFO L933 BasicCegarLoop]: 1419 mSDtfsCounter, 1420 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:14,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1420 Valid, 1419 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:03:14,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2021-12-07 00:03:14,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2021-12-07 00:03:14,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 768 states have (on average 1.2981770833333333) internal successors, (997), 779 states have internal predecessors, (997), 214 states have call successors, (214), 62 states have call predecessors, (214), 61 states have return successors, (212), 211 states have call predecessors, (212), 212 states have call successors, (212) [2021-12-07 00:03:14,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1423 transitions. [2021-12-07 00:03:14,501 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1423 transitions. Word has length 12 [2021-12-07 00:03:14,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:14,502 INFO L470 AbstractCegarLoop]: Abstraction has 1044 states and 1423 transitions. [2021-12-07 00:03:14,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:03:14,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1423 transitions. [2021-12-07 00:03:14,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-07 00:03:14,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:14,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:14,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-07 00:03:14,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:14,703 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:14,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:14,704 INFO L85 PathProgramCache]: Analyzing trace with hash -918530819, now seen corresponding path program 1 times [2021-12-07 00:03:14,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:14,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213402105] [2021-12-07 00:03:14,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:14,706 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:14,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:14,706 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:14,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-07 00:03:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:15,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:03:15,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:15,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:03:15,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:15,199 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:15,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213402105] [2021-12-07 00:03:15,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213402105] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:15,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:15,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:03:15,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779619037] [2021-12-07 00:03:15,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:15,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:03:15,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:15,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:03:15,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:03:15,202 INFO L87 Difference]: Start difference. First operand 1044 states and 1423 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:03:15,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:15,355 INFO L93 Difference]: Finished difference Result 3000 states and 4121 transitions. [2021-12-07 00:03:15,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:03:15,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-07 00:03:15,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:15,367 INFO L225 Difference]: With dead ends: 3000 [2021-12-07 00:03:15,367 INFO L226 Difference]: Without dead ends: 2007 [2021-12-07 00:03:15,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:03:15,372 INFO L933 BasicCegarLoop]: 1748 mSDtfsCounter, 1404 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:15,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1404 Valid, 3088 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:03:15,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2021-12-07 00:03:15,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 2004. [2021-12-07 00:03:15,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 1471 states have (on average 1.301835486063902) internal successors, (1915), 1491 states have internal predecessors, (1915), 413 states have call successors, (413), 120 states have call predecessors, (413), 119 states have return successors, (416), 409 states have call predecessors, (416), 411 states have call successors, (416) [2021-12-07 00:03:15,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 2744 transitions. [2021-12-07 00:03:15,496 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 2744 transitions. Word has length 16 [2021-12-07 00:03:15,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:15,497 INFO L470 AbstractCegarLoop]: Abstraction has 2004 states and 2744 transitions. [2021-12-07 00:03:15,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:03:15,497 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 2744 transitions. [2021-12-07 00:03:15,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-07 00:03:15,504 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:15,504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:15,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-07 00:03:15,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:15,705 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:15,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:15,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1637356552, now seen corresponding path program 1 times [2021-12-07 00:03:15,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:15,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215874067] [2021-12-07 00:03:15,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:15,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:15,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:15,707 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:15,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-07 00:03:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:16,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 00:03:16,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:03:16,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:16,359 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:16,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215874067] [2021-12-07 00:03:16,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215874067] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:16,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:16,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:03:16,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072629235] [2021-12-07 00:03:16,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:16,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:03:16,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:16,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:03:16,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:03:16,361 INFO L87 Difference]: Start difference. First operand 2004 states and 2744 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-07 00:03:16,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:16,504 INFO L93 Difference]: Finished difference Result 3928 states and 5394 transitions. [2021-12-07 00:03:16,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:03:16,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 58 [2021-12-07 00:03:16,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:16,521 INFO L225 Difference]: With dead ends: 3928 [2021-12-07 00:03:16,521 INFO L226 Difference]: Without dead ends: 2004 [2021-12-07 00:03:16,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:03:16,533 INFO L933 BasicCegarLoop]: 1421 mSDtfsCounter, 1 mSDsluCounter, 2836 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4257 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:16,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 4257 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:03:16,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2021-12-07 00:03:16,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 2004. [2021-12-07 00:03:16,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 1471 states have (on average 1.301155676410605) internal successors, (1914), 1491 states have internal predecessors, (1914), 413 states have call successors, (413), 120 states have call predecessors, (413), 119 states have return successors, (416), 409 states have call predecessors, (416), 411 states have call successors, (416) [2021-12-07 00:03:16,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 2743 transitions. [2021-12-07 00:03:16,638 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 2743 transitions. Word has length 58 [2021-12-07 00:03:16,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:16,639 INFO L470 AbstractCegarLoop]: Abstraction has 2004 states and 2743 transitions. [2021-12-07 00:03:16,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-07 00:03:16,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 2743 transitions. [2021-12-07 00:03:16,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-07 00:03:16,643 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:16,643 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:16,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-07 00:03:16,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:16,844 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:16,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:16,844 INFO L85 PathProgramCache]: Analyzing trace with hash 2142347156, now seen corresponding path program 1 times [2021-12-07 00:03:16,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:16,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385247398] [2021-12-07 00:03:16,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:16,845 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:16,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:16,846 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:16,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-07 00:03:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:17,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 00:03:17,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:17,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:03:17,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:17,464 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:17,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385247398] [2021-12-07 00:03:17,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385247398] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:17,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:17,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:03:17,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465636117] [2021-12-07 00:03:17,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:17,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:03:17,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:17,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:03:17,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:03:17,465 INFO L87 Difference]: Start difference. First operand 2004 states and 2743 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-07 00:03:17,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:17,884 INFO L93 Difference]: Finished difference Result 4225 states and 5856 transitions. [2021-12-07 00:03:17,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:03:17,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 56 [2021-12-07 00:03:17,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:17,904 INFO L225 Difference]: With dead ends: 4225 [2021-12-07 00:03:17,904 INFO L226 Difference]: Without dead ends: 2291 [2021-12-07 00:03:17,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:03:17,915 INFO L933 BasicCegarLoop]: 1532 mSDtfsCounter, 442 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:17,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 2922 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-07 00:03:17,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2021-12-07 00:03:18,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2005. [2021-12-07 00:03:18,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2005 states, 1472 states have (on average 1.3009510869565217) internal successors, (1915), 1492 states have internal predecessors, (1915), 413 states have call successors, (413), 120 states have call predecessors, (413), 119 states have return successors, (416), 409 states have call predecessors, (416), 411 states have call successors, (416) [2021-12-07 00:03:18,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2005 states to 2005 states and 2744 transitions. [2021-12-07 00:03:18,053 INFO L78 Accepts]: Start accepts. Automaton has 2005 states and 2744 transitions. Word has length 56 [2021-12-07 00:03:18,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:18,053 INFO L470 AbstractCegarLoop]: Abstraction has 2005 states and 2744 transitions. [2021-12-07 00:03:18,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-07 00:03:18,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2005 states and 2744 transitions. [2021-12-07 00:03:18,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-07 00:03:18,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:18,055 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-07 00:03:18,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-07 00:03:18,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:18,256 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:18,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:18,256 INFO L85 PathProgramCache]: Analyzing trace with hash 2010721819, now seen corresponding path program 1 times [2021-12-07 00:03:18,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:18,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389394408] [2021-12-07 00:03:18,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:18,257 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:18,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:18,258 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:18,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-07 00:03:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:18,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-07 00:03:18,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:18,943 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:03:18,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:18,943 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:18,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389394408] [2021-12-07 00:03:18,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389394408] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:18,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:18,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:03:18,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682353759] [2021-12-07 00:03:18,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:18,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:03:18,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:18,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:03:18,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:03:18,945 INFO L87 Difference]: Start difference. First operand 2005 states and 2744 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 00:03:19,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:19,062 INFO L93 Difference]: Finished difference Result 3929 states and 5394 transitions. [2021-12-07 00:03:19,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-07 00:03:19,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 83 [2021-12-07 00:03:19,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:19,073 INFO L225 Difference]: With dead ends: 3929 [2021-12-07 00:03:19,073 INFO L226 Difference]: Without dead ends: 1988 [2021-12-07 00:03:19,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:03:19,080 INFO L933 BasicCegarLoop]: 1420 mSDtfsCounter, 1 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4255 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:19,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 4255 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:03:19,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2021-12-07 00:03:19,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1988. [2021-12-07 00:03:19,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1461 states have (on average 1.3018480492813143) internal successors, (1902), 1481 states have internal predecessors, (1902), 409 states have call successors, (409), 118 states have call predecessors, (409), 117 states have return successors, (412), 405 states have call predecessors, (412), 407 states have call successors, (412) [2021-12-07 00:03:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2723 transitions. [2021-12-07 00:03:19,160 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2723 transitions. Word has length 83 [2021-12-07 00:03:19,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:19,161 INFO L470 AbstractCegarLoop]: Abstraction has 1988 states and 2723 transitions. [2021-12-07 00:03:19,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 00:03:19,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2723 transitions. [2021-12-07 00:03:19,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-07 00:03:19,163 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:19,163 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-07 00:03:19,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-07 00:03:19,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:19,364 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:19,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:19,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1893514816, now seen corresponding path program 1 times [2021-12-07 00:03:19,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:19,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670650875] [2021-12-07 00:03:19,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:19,365 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:19,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:19,366 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:19,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-07 00:03:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:19,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-07 00:03:19,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:20,211 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:03:20,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:20,211 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:20,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670650875] [2021-12-07 00:03:20,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670650875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:20,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:20,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:03:20,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34405387] [2021-12-07 00:03:20,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:20,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:03:20,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:20,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:03:20,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:03:20,213 INFO L87 Difference]: Start difference. First operand 1988 states and 2723 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 00:03:22,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:22,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:22,201 INFO L93 Difference]: Finished difference Result 3969 states and 5439 transitions. [2021-12-07 00:03:22,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:03:22,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 87 [2021-12-07 00:03:22,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:22,212 INFO L225 Difference]: With dead ends: 3969 [2021-12-07 00:03:22,212 INFO L226 Difference]: Without dead ends: 1977 [2021-12-07 00:03:22,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:03:22,219 INFO L933 BasicCegarLoop]: 1410 mSDtfsCounter, 0 mSDsluCounter, 4220 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5630 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:22,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5630 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-07 00:03:22,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2021-12-07 00:03:22,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1977. [2021-12-07 00:03:22,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1977 states, 1454 states have (on average 1.3012379642365888) internal successors, (1892), 1473 states have internal predecessors, (1892), 407 states have call successors, (407), 116 states have call predecessors, (407), 115 states have return successors, (410), 403 states have call predecessors, (410), 405 states have call successors, (410) [2021-12-07 00:03:22,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1977 states to 1977 states and 2709 transitions. [2021-12-07 00:03:22,294 INFO L78 Accepts]: Start accepts. Automaton has 1977 states and 2709 transitions. Word has length 87 [2021-12-07 00:03:22,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:22,294 INFO L470 AbstractCegarLoop]: Abstraction has 1977 states and 2709 transitions. [2021-12-07 00:03:22,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-07 00:03:22,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1977 states and 2709 transitions. [2021-12-07 00:03:22,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-07 00:03:22,296 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:22,297 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:22,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-07 00:03:22,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:22,498 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:22,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:22,498 INFO L85 PathProgramCache]: Analyzing trace with hash 218374504, now seen corresponding path program 1 times [2021-12-07 00:03:22,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:22,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763158022] [2021-12-07 00:03:22,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:22,499 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:22,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:22,500 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:22,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-07 00:03:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:23,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-07 00:03:23,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:23,590 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-07 00:03:23,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:23,590 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:23,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763158022] [2021-12-07 00:03:23,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763158022] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:23,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:23,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 00:03:23,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199058677] [2021-12-07 00:03:23,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:23,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:03:23,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:23,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:03:23,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:03:23,592 INFO L87 Difference]: Start difference. First operand 1977 states and 2709 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-07 00:03:24,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:24,208 INFO L93 Difference]: Finished difference Result 3952 states and 5424 transitions. [2021-12-07 00:03:24,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 00:03:24,228 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 110 [2021-12-07 00:03:24,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:24,238 INFO L225 Difference]: With dead ends: 3952 [2021-12-07 00:03:24,238 INFO L226 Difference]: Without dead ends: 1981 [2021-12-07 00:03:24,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-12-07 00:03:24,244 INFO L933 BasicCegarLoop]: 1397 mSDtfsCounter, 6 mSDsluCounter, 8370 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9767 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:24,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 9767 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-07 00:03:24,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2021-12-07 00:03:24,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1979. [2021-12-07 00:03:24,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1979 states, 1455 states have (on average 1.3010309278350516) internal successors, (1893), 1475 states have internal predecessors, (1893), 407 states have call successors, (407), 116 states have call predecessors, (407), 116 states have return successors, (415), 403 states have call predecessors, (415), 405 states have call successors, (415) [2021-12-07 00:03:24,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1979 states to 1979 states and 2715 transitions. [2021-12-07 00:03:24,313 INFO L78 Accepts]: Start accepts. Automaton has 1979 states and 2715 transitions. Word has length 110 [2021-12-07 00:03:24,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:24,313 INFO L470 AbstractCegarLoop]: Abstraction has 1979 states and 2715 transitions. [2021-12-07 00:03:24,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-07 00:03:24,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1979 states and 2715 transitions. [2021-12-07 00:03:24,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-07 00:03:24,315 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:24,316 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:24,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-07 00:03:24,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:24,516 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:24,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:24,517 INFO L85 PathProgramCache]: Analyzing trace with hash -93037707, now seen corresponding path program 1 times [2021-12-07 00:03:24,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:24,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579544787] [2021-12-07 00:03:24,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:24,518 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:24,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:24,518 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:24,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-07 00:03:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:25,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-07 00:03:25,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:25,551 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-07 00:03:25,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:25,551 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:25,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579544787] [2021-12-07 00:03:25,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579544787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:25,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:25,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:03:25,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991847039] [2021-12-07 00:03:25,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:25,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:03:25,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:25,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:03:25,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:03:25,553 INFO L87 Difference]: Start difference. First operand 1979 states and 2715 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 00:03:25,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:25,717 INFO L93 Difference]: Finished difference Result 3952 states and 5427 transitions. [2021-12-07 00:03:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:03:25,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 117 [2021-12-07 00:03:25,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:25,727 INFO L225 Difference]: With dead ends: 3952 [2021-12-07 00:03:25,728 INFO L226 Difference]: Without dead ends: 1981 [2021-12-07 00:03:25,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:03:25,734 INFO L933 BasicCegarLoop]: 1399 mSDtfsCounter, 1 mSDsluCounter, 5591 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6990 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:25,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6990 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:03:25,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2021-12-07 00:03:25,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1979. [2021-12-07 00:03:25,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1979 states, 1455 states have (on average 1.3010309278350516) internal successors, (1893), 1475 states have internal predecessors, (1893), 407 states have call successors, (407), 116 states have call predecessors, (407), 116 states have return successors, (414), 403 states have call predecessors, (414), 405 states have call successors, (414) [2021-12-07 00:03:25,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1979 states to 1979 states and 2714 transitions. [2021-12-07 00:03:25,830 INFO L78 Accepts]: Start accepts. Automaton has 1979 states and 2714 transitions. Word has length 117 [2021-12-07 00:03:25,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:25,831 INFO L470 AbstractCegarLoop]: Abstraction has 1979 states and 2714 transitions. [2021-12-07 00:03:25,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 00:03:25,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1979 states and 2714 transitions. [2021-12-07 00:03:25,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-07 00:03:25,834 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:25,834 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-12-07 00:03:25,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-12-07 00:03:26,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:26,035 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:26,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:26,036 INFO L85 PathProgramCache]: Analyzing trace with hash -235868006, now seen corresponding path program 1 times [2021-12-07 00:03:26,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:26,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144484089] [2021-12-07 00:03:26,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:26,037 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:26,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:26,038 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:26,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-07 00:03:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:26,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-07 00:03:26,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:27,082 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-07 00:03:27,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:27,082 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:27,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144484089] [2021-12-07 00:03:27,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144484089] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:27,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:27,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:03:27,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239603254] [2021-12-07 00:03:27,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:27,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:03:27,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:27,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:03:27,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:03:27,084 INFO L87 Difference]: Start difference. First operand 1979 states and 2714 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 00:03:28,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:03:28,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:28,508 INFO L93 Difference]: Finished difference Result 3952 states and 5425 transitions. [2021-12-07 00:03:28,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:03:28,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 117 [2021-12-07 00:03:28,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:28,544 INFO L225 Difference]: With dead ends: 3952 [2021-12-07 00:03:28,544 INFO L226 Difference]: Without dead ends: 1981 [2021-12-07 00:03:28,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:03:28,549 INFO L933 BasicCegarLoop]: 1399 mSDtfsCounter, 1 mSDsluCounter, 5589 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6988 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:28,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6988 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-07 00:03:28,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2021-12-07 00:03:28,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1979. [2021-12-07 00:03:28,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1979 states, 1455 states have (on average 1.3010309278350516) internal successors, (1893), 1475 states have internal predecessors, (1893), 407 states have call successors, (407), 116 states have call predecessors, (407), 116 states have return successors, (413), 403 states have call predecessors, (413), 405 states have call successors, (413) [2021-12-07 00:03:28,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1979 states to 1979 states and 2713 transitions. [2021-12-07 00:03:28,609 INFO L78 Accepts]: Start accepts. Automaton has 1979 states and 2713 transitions. Word has length 117 [2021-12-07 00:03:28,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:28,610 INFO L470 AbstractCegarLoop]: Abstraction has 1979 states and 2713 transitions. [2021-12-07 00:03:28,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 00:03:28,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1979 states and 2713 transitions. [2021-12-07 00:03:28,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-07 00:03:28,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:28,612 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:28,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-07 00:03:28,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:28,814 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:28,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:28,815 INFO L85 PathProgramCache]: Analyzing trace with hash -574486517, now seen corresponding path program 2 times [2021-12-07 00:03:28,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:28,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113266772] [2021-12-07 00:03:28,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:03:28,819 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:28,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:28,821 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:28,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-07 00:03:29,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-07 00:03:29,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:03:29,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 00:03:29,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:29,681 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-07 00:03:29,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:29,682 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:29,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113266772] [2021-12-07 00:03:29,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113266772] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:29,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:29,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:03:29,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107485087] [2021-12-07 00:03:29,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:29,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:03:29,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:29,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:03:29,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:03:29,684 INFO L87 Difference]: Start difference. First operand 1979 states and 2713 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-07 00:03:29,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:29,994 INFO L93 Difference]: Finished difference Result 4070 states and 5625 transitions. [2021-12-07 00:03:29,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:03:29,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 131 [2021-12-07 00:03:29,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:30,005 INFO L225 Difference]: With dead ends: 4070 [2021-12-07 00:03:30,005 INFO L226 Difference]: Without dead ends: 2146 [2021-12-07 00:03:30,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:03:30,012 INFO L933 BasicCegarLoop]: 1516 mSDtfsCounter, 102 mSDsluCounter, 4391 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 5907 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:30,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 5907 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 00:03:30,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2021-12-07 00:03:30,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 2035. [2021-12-07 00:03:30,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2035 states, 1495 states have (on average 1.2956521739130435) internal successors, (1937), 1518 states have internal predecessors, (1937), 420 states have call successors, (420), 118 states have call predecessors, (420), 119 states have return successors, (428), 414 states have call predecessors, (428), 418 states have call successors, (428) [2021-12-07 00:03:30,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 2785 transitions. [2021-12-07 00:03:30,081 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 2785 transitions. Word has length 131 [2021-12-07 00:03:30,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:30,081 INFO L470 AbstractCegarLoop]: Abstraction has 2035 states and 2785 transitions. [2021-12-07 00:03:30,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-07 00:03:30,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 2785 transitions. [2021-12-07 00:03:30,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-07 00:03:30,084 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:30,084 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:30,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-12-07 00:03:30,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:30,285 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:30,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:30,286 INFO L85 PathProgramCache]: Analyzing trace with hash -6677569, now seen corresponding path program 2 times [2021-12-07 00:03:30,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:30,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154438456] [2021-12-07 00:03:30,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:03:30,290 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:30,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:30,292 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:30,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-07 00:03:30,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-07 00:03:30,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:03:30,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-07 00:03:30,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-07 00:03:31,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:03:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-07 00:03:31,757 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:31,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154438456] [2021-12-07 00:03:31,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154438456] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-07 00:03:31,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 00:03:31,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2021-12-07 00:03:31,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769033735] [2021-12-07 00:03:31,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:31,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:03:31,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:31,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:03:31,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:03:31,759 INFO L87 Difference]: Start difference. First operand 2035 states and 2785 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 4 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-07 00:03:36,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:36,362 INFO L93 Difference]: Finished difference Result 4056 states and 5592 transitions. [2021-12-07 00:03:36,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:03:36,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 4 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 124 [2021-12-07 00:03:36,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:36,383 INFO L225 Difference]: With dead ends: 4056 [2021-12-07 00:03:36,383 INFO L226 Difference]: Without dead ends: 4053 [2021-12-07 00:03:36,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:03:36,385 INFO L933 BasicCegarLoop]: 2969 mSDtfsCounter, 2723 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 5390 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:36,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2723 Valid, 5390 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-07 00:03:36,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4053 states. [2021-12-07 00:03:36,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4053 to 3980. [2021-12-07 00:03:36,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 2920 states have (on average 1.3020547945205478) internal successors, (3802), 2965 states have internal predecessors, (3802), 828 states have call successors, (828), 228 states have call predecessors, (828), 231 states have return successors, (886), 818 states have call predecessors, (886), 826 states have call successors, (886) [2021-12-07 00:03:36,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 5516 transitions. [2021-12-07 00:03:36,521 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 5516 transitions. Word has length 124 [2021-12-07 00:03:36,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:36,522 INFO L470 AbstractCegarLoop]: Abstraction has 3980 states and 5516 transitions. [2021-12-07 00:03:36,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 4 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-07 00:03:36,522 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 5516 transitions. [2021-12-07 00:03:36,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-07 00:03:36,524 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:36,524 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:36,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-12-07 00:03:36,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:36,725 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:36,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:36,727 INFO L85 PathProgramCache]: Analyzing trace with hash 212177149, now seen corresponding path program 1 times [2021-12-07 00:03:36,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:36,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288819743] [2021-12-07 00:03:36,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:36,730 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:36,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:36,732 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:36,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-07 00:03:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:37,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 00:03:37,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:37,813 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-07 00:03:37,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:03:38,093 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-07 00:03:38,093 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:38,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288819743] [2021-12-07 00:03:38,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288819743] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:03:38,093 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:03:38,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-07 00:03:38,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106048146] [2021-12-07 00:03:38,093 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:03:38,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 00:03:38,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:38,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 00:03:38,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:03:38,094 INFO L87 Difference]: Start difference. First operand 3980 states and 5516 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-07 00:03:38,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:38,776 INFO L93 Difference]: Finished difference Result 7935 states and 11011 transitions. [2021-12-07 00:03:38,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 00:03:38,778 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 124 [2021-12-07 00:03:38,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:38,793 INFO L225 Difference]: With dead ends: 7935 [2021-12-07 00:03:38,794 INFO L226 Difference]: Without dead ends: 3998 [2021-12-07 00:03:38,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-12-07 00:03:38,804 INFO L933 BasicCegarLoop]: 1408 mSDtfsCounter, 366 mSDsluCounter, 3913 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 5321 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:38,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [404 Valid, 5321 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-07 00:03:38,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3998 states. [2021-12-07 00:03:38,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3998 to 3998. [2021-12-07 00:03:38,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3998 states, 2932 states have (on average 1.300818553888131) internal successors, (3814), 2977 states have internal predecessors, (3814), 834 states have call successors, (834), 228 states have call predecessors, (834), 231 states have return successors, (892), 824 states have call predecessors, (892), 832 states have call successors, (892) [2021-12-07 00:03:38,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 5540 transitions. [2021-12-07 00:03:38,929 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 5540 transitions. Word has length 124 [2021-12-07 00:03:38,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:38,929 INFO L470 AbstractCegarLoop]: Abstraction has 3998 states and 5540 transitions. [2021-12-07 00:03:38,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-07 00:03:38,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 5540 transitions. [2021-12-07 00:03:38,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-12-07 00:03:38,933 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:38,934 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:38,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-12-07 00:03:39,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:39,134 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:39,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:39,135 INFO L85 PathProgramCache]: Analyzing trace with hash 195601534, now seen corresponding path program 2 times [2021-12-07 00:03:39,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:39,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713169231] [2021-12-07 00:03:39,136 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:03:39,136 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:39,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:39,137 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:39,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-12-07 00:03:39,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-07 00:03:39,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:03:39,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-07 00:03:39,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:40,179 INFO L134 CoverageAnalysis]: Checked inductivity of 988 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2021-12-07 00:03:40,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:40,180 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:40,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713169231] [2021-12-07 00:03:40,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713169231] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:40,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:40,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 00:03:40,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504445189] [2021-12-07 00:03:40,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:40,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 00:03:40,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:40,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 00:03:40,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:03:40,182 INFO L87 Difference]: Start difference. First operand 3998 states and 5540 transitions. Second operand has 7 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 00:03:44,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:44,063 INFO L93 Difference]: Finished difference Result 10790 states and 15019 transitions. [2021-12-07 00:03:44,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 00:03:44,064 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 328 [2021-12-07 00:03:44,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:44,090 INFO L225 Difference]: With dead ends: 10790 [2021-12-07 00:03:44,090 INFO L226 Difference]: Without dead ends: 7835 [2021-12-07 00:03:44,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:03:44,097 INFO L933 BasicCegarLoop]: 2725 mSDtfsCounter, 1407 mSDsluCounter, 11662 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 14387 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:44,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1429 Valid, 14387 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-07 00:03:44,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7835 states. [2021-12-07 00:03:44,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7835 to 7769. [2021-12-07 00:03:44,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7769 states, 5685 states have (on average 1.3023746701846965) internal successors, (7404), 5777 states have internal predecessors, (7404), 1620 states have call successors, (1620), 450 states have call predecessors, (1620), 463 states have return successors, (1759), 1603 states have call predecessors, (1759), 1618 states have call successors, (1759) [2021-12-07 00:03:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7769 states to 7769 states and 10783 transitions. [2021-12-07 00:03:44,348 INFO L78 Accepts]: Start accepts. Automaton has 7769 states and 10783 transitions. Word has length 328 [2021-12-07 00:03:44,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:44,349 INFO L470 AbstractCegarLoop]: Abstraction has 7769 states and 10783 transitions. [2021-12-07 00:03:44,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-07 00:03:44,349 INFO L276 IsEmpty]: Start isEmpty. Operand 7769 states and 10783 transitions. [2021-12-07 00:03:44,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2021-12-07 00:03:44,354 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:44,354 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:44,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-12-07 00:03:44,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:44,555 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:44,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:44,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1423433899, now seen corresponding path program 1 times [2021-12-07 00:03:44,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:44,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704603153] [2021-12-07 00:03:44,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:44,557 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:44,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:44,557 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:44,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-12-07 00:03:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:03:46,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-07 00:03:46,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:47,543 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-12-07 00:03:47,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:03:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-12-07 00:03:48,324 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:48,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704603153] [2021-12-07 00:03:48,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704603153] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:03:48,324 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 00:03:48,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-12-07 00:03:48,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889386388] [2021-12-07 00:03:48,324 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 00:03:48,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 00:03:48,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:48,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 00:03:48,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-07 00:03:48,326 INFO L87 Difference]: Start difference. First operand 7769 states and 10783 transitions. Second operand has 14 states, 14 states have (on average 9.071428571428571) internal successors, (127), 14 states have internal predecessors, (127), 10 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) [2021-12-07 00:03:49,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:49,995 INFO L93 Difference]: Finished difference Result 15501 states and 21530 transitions. [2021-12-07 00:03:49,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 00:03:49,996 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.071428571428571) internal successors, (127), 14 states have internal predecessors, (127), 10 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) Word has length 334 [2021-12-07 00:03:49,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:50,024 INFO L225 Difference]: With dead ends: 15501 [2021-12-07 00:03:50,024 INFO L226 Difference]: Without dead ends: 7793 [2021-12-07 00:03:50,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:03:50,037 INFO L933 BasicCegarLoop]: 1428 mSDtfsCounter, 213 mSDsluCounter, 10624 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 12052 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:50,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 12052 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-07 00:03:50,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7793 states. [2021-12-07 00:03:50,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7793 to 7793. [2021-12-07 00:03:50,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7793 states, 5701 states have (on average 1.3015260480617437) internal successors, (7420), 5793 states have internal predecessors, (7420), 1628 states have call successors, (1628), 450 states have call predecessors, (1628), 463 states have return successors, (1767), 1611 states have call predecessors, (1767), 1626 states have call successors, (1767) [2021-12-07 00:03:50,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7793 states to 7793 states and 10815 transitions. [2021-12-07 00:03:50,292 INFO L78 Accepts]: Start accepts. Automaton has 7793 states and 10815 transitions. Word has length 334 [2021-12-07 00:03:50,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:50,293 INFO L470 AbstractCegarLoop]: Abstraction has 7793 states and 10815 transitions. [2021-12-07 00:03:50,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.071428571428571) internal successors, (127), 14 states have internal predecessors, (127), 10 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) [2021-12-07 00:03:50,293 INFO L276 IsEmpty]: Start isEmpty. Operand 7793 states and 10815 transitions. [2021-12-07 00:03:50,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2021-12-07 00:03:50,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:50,298 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:50,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-12-07 00:03:50,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:50,499 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:50,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:50,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1704191489, now seen corresponding path program 2 times [2021-12-07 00:03:50,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:50,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661787784] [2021-12-07 00:03:50,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:03:50,501 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:50,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:50,502 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:50,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-12-07 00:03:51,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-07 00:03:51,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:03:51,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:03:51,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:03:51,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4024 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4024 trivial. 0 not checked. [2021-12-07 00:03:51,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:03:51,847 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:03:51,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661787784] [2021-12-07 00:03:51,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661787784] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:03:51,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:03:51,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:03:51,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545566431] [2021-12-07 00:03:51,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:03:51,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:03:51,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:03:51,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:03:51,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:03:51,850 INFO L87 Difference]: Start difference. First operand 7793 states and 10815 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-07 00:03:52,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:03:52,191 INFO L93 Difference]: Finished difference Result 16377 states and 23009 transitions. [2021-12-07 00:03:52,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:03:52,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 606 [2021-12-07 00:03:52,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:03:52,222 INFO L225 Difference]: With dead ends: 16377 [2021-12-07 00:03:52,222 INFO L226 Difference]: Without dead ends: 8679 [2021-12-07 00:03:52,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:03:52,238 INFO L933 BasicCegarLoop]: 1462 mSDtfsCounter, 129 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:03:52,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 2815 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:03:52,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8679 states. [2021-12-07 00:03:52,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8679 to 8674. [2021-12-07 00:03:52,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8674 states, 6358 states have (on average 1.3153507392261719) internal successors, (8363), 6474 states have internal predecessors, (8363), 1852 states have call successors, (1852), 450 states have call predecessors, (1852), 463 states have return successors, (2065), 1819 states have call predecessors, (2065), 1850 states have call successors, (2065) [2021-12-07 00:03:52,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8674 states to 8674 states and 12280 transitions. [2021-12-07 00:03:52,585 INFO L78 Accepts]: Start accepts. Automaton has 8674 states and 12280 transitions. Word has length 606 [2021-12-07 00:03:52,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:03:52,586 INFO L470 AbstractCegarLoop]: Abstraction has 8674 states and 12280 transitions. [2021-12-07 00:03:52,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-07 00:03:52,586 INFO L276 IsEmpty]: Start isEmpty. Operand 8674 states and 12280 transitions. [2021-12-07 00:03:52,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2021-12-07 00:03:52,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:03:52,592 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:03:52,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-12-07 00:03:52,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:03:52,794 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:03:52,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:03:52,795 INFO L85 PathProgramCache]: Analyzing trace with hash 627148464, now seen corresponding path program 1 times [2021-12-07 00:03:52,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:03:52,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404663310] [2021-12-07 00:03:52,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:03:52,802 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:03:52,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:03:52,804 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:03:52,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1eb228c-6926-44b6-8b6b-c3e5b2fdc76b/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-12-07 00:09:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:09:07,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 3537 conjuncts, 682 conjunts are in the unsatisfiable core [2021-12-07 00:09:07,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:09:07,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-07 00:09:07,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-07 00:09:07,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-07 00:09:07,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-07 00:09:08,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-12-07 00:09:08,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2021-12-07 00:09:12,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:12,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:12,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:12,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:12,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-12-07 00:09:13,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2021-12-07 00:09:19,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:19,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:19,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:19,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:19,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:19,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:19,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:19,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:19,745 INFO L354 Elim1Store]: treesize reduction 2, result has 75.0 percent of original size [2021-12-07 00:09:19,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 44 [2021-12-07 00:09:19,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:09:19,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:09:19,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2021-12-07 00:09:36,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:36,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:36,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:36,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:36,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:36,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:36,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:36,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:36,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:36,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:36,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:36,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:37,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:37,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:37,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:37,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:37,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:37,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:09:37,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:09:37,196 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:09:37,196 INFO L244 Elim1Store]: Index analysis took 286 ms [2021-12-07 00:09:37,522 INFO L354 Elim1Store]: treesize reduction 77, result has 42.1 percent of original size [2021-12-07 00:09:37,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 196 treesize of output 230 [2021-12-07 00:09:37,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:09:37,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:10:00,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:00,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:00,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:00,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:00,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:00,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:00,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:00,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:00,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:00,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:00,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:00,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:00,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:00,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:01,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:01,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:01,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:01,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:01,152 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:10:01,153 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-07 00:10:01,153 INFO L244 Elim1Store]: Index analysis took 319 ms [2021-12-07 00:10:01,791 INFO L354 Elim1Store]: treesize reduction 196, result has 33.3 percent of original size [2021-12-07 00:10:01,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 292 [2021-12-07 00:10:01,916 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-07 00:10:01,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 25 [2021-12-07 00:10:02,023 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-07 00:10:02,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 25 [2021-12-07 00:10:30,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-07 00:10:30,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-07 00:10:30,999 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:10:31,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 86 [2021-12-07 00:10:33,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2021-12-07 00:10:40,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:40,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:40,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:10:40,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-07 00:10:40,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2021-12-07 00:11:04,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:04,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:04,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:04,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:04,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:04,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:04,332 INFO L354 Elim1Store]: treesize reduction 2, result has 75.0 percent of original size [2021-12-07 00:11:04,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2021-12-07 00:11:04,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:11:04,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:11:04,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2021-12-07 00:11:44,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:44,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:44,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:44,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:44,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:44,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:44,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:44,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:44,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:44,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:44,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:44,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:44,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:44,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:44,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:45,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:45,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:45,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:11:45,071 INFO L244 Elim1Store]: Index analysis took 258 ms [2021-12-07 00:11:45,462 INFO L354 Elim1Store]: treesize reduction 66, result has 50.4 percent of original size [2021-12-07 00:11:45,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 200 treesize of output 247 [2021-12-07 00:11:45,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-07 00:11:45,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5